Analgesics
Antiandrogens
Antihistamines
Azvudine
Bromhexine
Budesonide
Colchicine
Conv. Plasma
Curcumin
Famotidine
Favipiravir
Fluvoxamine
Hydroxychlor..
Ivermectin
Lifestyle
Melatonin
Metformin
Minerals
Molnupiravir
Monoclonals
Naso/orophar..
Nigella Sativa
Nitazoxanide
PPIs
Paxlovid
Quercetin
Remdesivir
Thermotherapy
Vitamins
More

Other
Feedback
Home
 
next
study
previous
study
c19early.org COVID-19 treatment researchQuercetinQuercetin (more..)
Melatonin Meta
Metformin Meta
Antihistamines Meta
Azvudine Meta Molnupiravir Meta
Bromhexine Meta
Budesonide Meta
Colchicine Meta Nigella Sativa Meta
Conv. Plasma Meta Nitazoxanide Meta
Curcumin Meta PPIs Meta
Famotidine Meta Paxlovid Meta
Favipiravir Meta Quercetin Meta
Fluvoxamine Meta Remdesivir Meta
Hydroxychlor.. Meta Thermotherapy Meta
Ivermectin Meta

All Studies   Meta Analysis       

Neglected Effective Early Therapies against COVID-19: Focus on Functional Foods and Related Active Substances. A Review

Dec 2023  
  Post
  Facebook
Share
  Source   PDF   All Studies   Meta AnalysisMeta
Quercetin for COVID-19
24th treatment shown to reduce risk in July 2021, now with p = 0.002 from 12 studies.
No treatment is 100% effective. Protocols combine treatments.
5,100+ studies for 112 treatments. c19early.org
Review of a group of compounds with efficacy shown in RCTs, safety, favorable opportunity costs, biological plausibility, and accessibility without major conflicts of interest. The compounds include curcumin, nigella sativa (black seed), quercetin, L-arginine, povidone-iodine, and melatonin. RCTs show significantly reduced mortality with curcumin, nigella sativa, quercetin, povidone-iodine, and melatonin treatment. RCTs also show L-arginine may be effective against long COVID symptoms. The author contrasts these treatments with acetaminophen (paracetamol), which lacks RCT evidence of efficacy but is widely recommended.
Bioavailability. Quercetin has low bioavailability and studies typically use advanced formulations to improve bioavailability which may be required to reach therapeutic concentrations.
Reviews covering quercetin for COVID-19 include1-18.
Review covers curcumin, quercetin, nigella sativa, melatonin, alkalinization, and povidone-iodine.
Donzelli et al., 15 Dec 2023, preprint, 1 author. Contact: info@fondazioneallinearesanitaesalute.org.
This PaperQuercetinAll
Neglected Effective Early Therapies against COVID-19: Focus on Functional Foods and Related Active Substances. A Review
Alberto Donzelli
doi:10.20944/preprints202312.1178.v1
The official recommendations for COVID-19 management in the outpatient setting focus on high-cost drugs, that show several problems and limitations. Therefore, other treatments may be considered, if they meet the following criteria: promising effectiveness, based on favorable randomized controlled trials (RCTs) of acceptable validity, provided the treatments are also: safe, convenient, biologically plausible, accessible and coming from researchers with no major conflict of interests. The focus is on some functional foods and their active ingredients, with further mention of a few other substances of different origin but meeting the above criteria. The supporting scientific evidence privileges meta-analyses of RCTs, the most valid study design, including the most solid outcome: all-cause mortality.
Conflicts of Interest: The Author declares no conflict of interest.
References
Abbaspour-Aghdam, Hazrati, Abdolmohammadi-Vahid, Immunomodulatory role of Nanocurcumin in COVID-19 patients with dropped natural killer cells frequency and function, European Journal of Pharmacology, doi:10.1016/j.ejphar.2022.175267
Abdelazeem, Ahmed, Awad, Elbadawy, Manasrah et al., The effects of curcumin as dietary supplement for patients with COVID-19: A systematic review of randomized clinical trials, Drug Discoveries & Therapeutics, doi:10.5582/ddt.2022.01017
Abolhassani, Delavari, Landegren, Genetic and immunologic evaluation of children with inborn errors of immunity and severe or critical COVID-19, J Allergy Clin Immunol, doi:10.1016/j.jaci.2022.09.005.161
Agarwal, Hunt, Stegemann, A living WHO guideline on drugs for covid-19, BMJ, doi:10.1136/bmj.m3379
Ahmadi, Mehrabi, Zare, Efficacy of Nanocurcumin as an Add-On Treatment for Patients Hospitalized with COVID-19: A Double-Blind, Randomized Clinical Trial, International Journal of Clinical Practice, doi:10.1155/2023/5734675
Ahmadi, Salari, Sharifi, Oral nano-curcumin formulation efficacy in the management of mild to moderate outpatient COVID-19: A randomized triple-blind placebo-controlled clinical trial, Food Science and Nutrition, doi:10.1002/fsn3.2226
Al-Haidari, Faiq, Ghareeb, Clinical Trial of Black Seeds Against COVID -19 in Kirkuk City / Iraq, Indian Journal of Forensic Medicine & Toxicology
Alizadeh, Keyhanian, Ghaderkhani, A Pilot Study on Controlling Coronavirus Disease 2019 (COVID-19) Inflammation Using Melatonin Supplement, Iranian Journal of Allergy, Asthma and Immunology
Ameri, Frouz Asadi, Ziaei, Efficacy and safety of oral melatonin in patients with severe COVID-19: a randomized controlled trial, Inflammopharmacology, doi:10.1007/s10787-022-01096-7
Anand, Kunnumakkara, Newman, Aggarwal, Bioavailability of curcumin: Problems and promises, Mol. Pharm
Anderson, Povidone-iodine demonstrates rapid in vitro virucidal activity against SARS-CoV-2, the virus causing COVID-19 disease, Infect. Dis. Ther
Arbel, Wolff Sagy, Hoshen, Nirmatrelvir Use and Severe Covid-19 Outcomes during the Omicron Surge, New Engl J Med, doi:10.1056/NEJMoa2204919
Arefin, Rumi, Uddin, Virucidal effect of povidone iodine on COVID-19 in the nasopharynx: an open-label randomized clinical trial, Indian Journal of Otolaryngology and Head & Neck Surgery, doi:10.1007/s12070-021-02616-7
Arslan, Ergun, Topuz, Synergistic Effect of Quercetin and Vitamin C Against COVID-19: Is a Possible Guard for Front Liners, SSRN, doi:10.2139/ssrn.3682517
Asadirad, Nashibi, Khodadadi, Antiinflammatory potential of nano-curcumin as an alternative therapeutic agent for the treatment of mild-to-moderate hospitalized COVID-19 patients in a placebocontrolled clinical trial, Phytotherapy Research, doi:10.1002/ptr.7375
Ashraf, Ashraf, Ashraf, Honey and Nigella sativa against COVID-19 in Pakistan (HNS-COVID-PK): A multi-center placebo-controlled randomized clinical trial, Phytotherapy Research, doi:10.1002/ptr.7640
Askari, Sahebkar, Soleimani, The efficacy of curcumin-piperine co-supplementation on clinical symptoms, duration, severity, and inflammatory factors in COVID-19 outpatients: a randomized doubleblind, placebo-controlled trial, Trials, doi:10.1186/s13063-022-06375-w
Ausina-Marquez, Ferrer, Oral antiseptics against coronavirus: Invitro and clinical evidence, J. Hosp. Infect
Bahrampour Juybari, Pourhanifeh, Hosseinzadeh, Hemati, Mehrzadi, Melatonin potentials against viral infections including COVID-19: Current evidence and new findings, Virus Res
Baker, Lugo-Candelas, Wu, Association of Prenatal Acetaminophen Exposure Measured in Meconium With Risk of Attention-Deficit/Hyperactivity Disorder Mediated by Frontoparietal Network Brain Connectivity, JAMA Pediatr, doi:10.1001/jamapediatrics.2020.3080
Baldia, Wernly, Flaatten, The association of prior paracetamol intake with outcome of very old intensive care patients with COVID-19: results from an international prospective multicentre trial, BMC Geriatr, doi:10.1186/s12877-022-03709-w.162
Batiha, Beshbishy, Ikram, The pharmacological activity, biochemical properties, and pharmacokinetics of the major natural polyphenolic flavonoid: Quercetin, Foods, doi:10.3390/foods9030374
Baxter, Schwartz, Johnson, Rapid initiation of nasal saline irrigation to reduce severity in high-risk COVID+ outpatients, Ear, Nose & Throat Journal, doi:10.1177/01455613221123737
Baxter, Schwartz, Johnson, Rapid initiation of nasal saline irrigation to reduce severity in high-risk COVID+ outpatients, Ear, Nose & Throat Journal, doi:10.1177/01455613221123737
Bencheqroun, Ahmed, Kocak, A Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate the Safety and Efficacy of ThymoQuinone Formula (TQF) for Treating Outpatient SARS-CoV-2, Pathogens, doi:10.3390/pathogens11050551
Bhaskar, Kumar, Krishnan, Antony, Quercetin alleviates hypercholesterolemic diet induced inflammation during progression and regression of atherosclerosis in rabbits, Nutrition, doi:10.1016/j.nut.2012.01.019
Blanc, Waechter, Vogel, Interest of Proton Pump Inhibitors in Reducing the Occurrence of COVID-19: A Case-Control Study, Preprints, doi:10.20944/preprints202005.0016.v1
Bologna, Madonna, Pone, Efficacy of Prolonged-Release Melatonin 2 mg (PRM 2 mg) Prescribed for Insomnia in Hospitalized Patients for COVID-19: A Retrospective Observational Study, Journal of Clinical Medicine, doi:10.3390/jcm10245857
Brito, Lima, Cordeiro, Da, Nizer, Effectiveness of supplementation with quercetintype flavonols for treatment of viral lower respiratory tract infections: Systematic review and metaanalysis of preclinical studies, Phytotherapy Research: PTR, doi:10.1002/ptr.7122
Camp, Bai, Gonullu, Nayak, Abu-Soud, Melatonin interferes with COVID-19 at several distinct ROS-related steps, J. Inorg. Biochem, doi:10.1016/j.jinorgbio.2021.111546
Campbell, Murata, Conner, Chronic use of non-steroidal anti-inflammatory drugs (NSAIDs) or acetaminophen and relationship with mortality among United States Veterans after testing positive for COVID-19, PLoS One, doi:10.1371/journal.pone.0267462.175
Chandan, Zemedikun, Thayakaran, Nonsteroidal Antiinflammatory Drugs and Susceptibility to COVID-19, Arthritis Rheumatol, doi:10.1002/art.41593.170
Chandra, Das, Banday, Efficacy of polyherbal formulations for prevention of COVID-19 infection in high-risk subjects: A randomized open-label controlled clinical trial, Phytotherapy Research, doi:10.1002/ptr.7531
Charfeddine, Hadj Amor, Jdidi, Long COVID 19 syndrome: is it related to microcirculation and endothelial dysfunction? Insights from TUN-EndCOV study, Front Cardiovasc. Med, doi:10.3389/fcvm.2021.745758
Cheema, Sohail, Fatima, Quercetin for the treatment of COVID-19 patients: A systematic review and meta-analysis, Rev Med Virol, doi:10.1002/rmv.2427
Chen, Parthasarathy, Leung, Distinct temporal trajectories and risk factors for Post-acute sequelae of SARS-CoV-2 infection, Front Med, doi:10.3389/fmed.2023.1227883.155
Chitre, Nadkarni, Jagtap, Phase III randomized clinical trial of BV-4051, an Ayurvedic polyherbal formulation in moderate SARS-CoV-2 infections and its impact on inflammatory biomarkers, Phytotherapy Research, doi:10.1002/ptr.7683
Choudhury, Shabnam, Ahsan, Effect of 1% Povidone Iodine Mouthwash/Gargle, Nasal and Eye Drop in COVID-19 patient, doi:10.3329/brc.v7i1.54245
Cohen, Brown, Rebound of COVID-19 With Nirmatrelvir-Ritonavir Antiviral Therapy, Ann Intern Med, doi:10.7326/M23-2887
Daneshfard, Aghanouri, Kazemnejad, Effect of Sinamaz nasal drop on asymptomatic family members of COVID 19 patients: An open-label randomized controlled trial, Phytotherapy Research, doi:10.1002/ptr.7915
Darban, Malek, Memarian, Efficacy of High Dose Vitamin C, Melatonin and Zinc in Iranian Patients with Acute Respiratory Syndrome due to Coronavirus Infection: A Pilot Randomized Trial, Journal of Cellular & Molecular Anesthesia
Dehzad, Ghalandari, Nouri, Askarpour, Antioxidant and anti-inflammatory effects of curcumin/turmeric supplementation in adults: A GRADE-assessed systematic review and dose-response meta-analysis of randomized controlled trials, Cytokine
Delić, Matetic, Domjanović, Effects of Different Inhalation Therapy on Ventilator-Associated Pneumonia in Ventilated COVID-19 Patients: A Randomized Controlled Trial, Microorganisms, doi:10.3390/microorganisms10061118
Derosa, Maffioli, Angelo, Pierro, A role for quercetin in coronavirus disease 2019 (COVID-19), Phytotherapy Research: PTR, doi:10.1002/ptr.6887
Doherty, Hawkey, Goulder, A randomised controlled trial of ibuprofen, paracetamol or a combination tablet of ibuprofen/paracetamol in community-derived people with knee pain, Ann Rheum Dis, doi:10.1136/ard.2011.154047.183
Edelstein, Boucau, Uddin, SARS-CoV-2 Virologic Rebound With Nirmatrelvir-Ritonavir Therapy: An Observational Study, Ann Intern Med, doi:10.7326/M23-1756
Eggers, Eickmann, Zorn, Rapid and effective virucidal activity of povidone-iodine products against Middle East respiratory syndrome coronavirus (MERS-CoV) and modified vaccinia virus Ankara (MVA), Infect. Dis. Ther
El-Badrawy, Saleh, El-Badrawy, Role of Sodium Bicarbonate as Adjuvant Treatment of Nonsevere Computed Tomography-identified COVID-19 Pneumonia: A Preliminary Report, Indian Journal of Respiratory Care
Elsersy, Zahran, Elbakry, Combined Nasal, Oropharyngeal Povidone Iodine Plus Glycyrrhizic Acid Sprays, Accelerate Clinical and Laboratory Recovery and Reduces Household Transmission of SARS-CoV-2: A Randomized Placebo-Controlled Clinical Trial, Frontiers in Medicine, doi:10.17219/dmp/150831
Elzein, Abdel-Sater, Fakhreddine, In vivo evaluation of the virucidal efficacy of chlorhexidine and povidone-iodine mouthwashes against salivary SARS-CoV-2. A randomized-controlled clinical trial, Journal of Evidence Based Dental Practice, doi:10.1016/j.jebdp.2021.101584
Fantozzi, Pampena, Pierangeli, Efficacy of antiseptic mouthrinses against SARS-CoV-2: A prospective randomized placebo-controlled pilot study, American Journal of Otolaryngology, doi:10.1016/j.amjoto.2022.103549
Faridzadeh, Tabashiri, Miri, Mahmoudi, The role of melatonin as an adjuvant in the treatment of COVID-19: A systematic review, Heliyon, doi:10.1016/j.heliyon.2022.e10906.134
Farnoosh, Akbariqomi, Badriet, Efficacy of a Low Dose of Melatonin as an Adjunctive Therapy in Hospitalized Patients with COVID-19: A Randomized, Double-blind Clinical Trial, Archives of Medical Research, doi:10.1016/j.arcmed.2021.06.006
Farrell, Klatt-Cromwell, Schneider, Benefits and Safety of Nasal Saline Irrigations in a Pandemic-Washing COVID-19 Away, JAMA Otolaryngol Head Neck Surg, doi:10.1001/jamaoto.2020.1622.128
Ferrer, Barrueco, Martinez-Beneyto, Clinical evaluation of antiseptic mouth rinses to reduce salivary load of SARS-CoV-2, Scientific Reports, doi:10.1038/s41598-021-03461-y
Fessler, Chang, Liu, Johnston, Curcumin Confers Anti-Inflammatory Effects in Adults Who Recovered from COVID-19 and Were Subsequently Vaccinated: A Randomized Controlled Trial, Nutrients, doi:10.3390/nu15071548
Fiorentino, Coppola, Izzo, Effects of adding L-arginine orally to standard therapy in patients with COVID-19: A randomized, double-blind, placebo-controlled, parallel-group trial. Results of the first interim analysis, EClinicalMedicine, doi:10.1016/j.eclinm.2021.101125
Fogleman, Cohen, Mercier, A Pilot of a Randomized Control Trial of Melatonin and Vitamin C for Mild-to-Moderate COVID-19, The Journal of the American Board of Family Medicine, doi:10.3122/jabfm.2022.04.210529
Gambardella, Fiordelisi, Spigno, Effects of chronic supplementation of Larginine on physical fitness in water polo players, Oxid Med Cell Longev
Gambardella, Khondkar, Morelli, Wang, Santulli et al., Arginine and endothelial function, Biomedicines, doi:10.3390/biomedicines8080277
García-García, Seco-Meseguer, Ruiz-Seco, Melatonin in the Prophylaxis of SARS-CoV-2 Infection in Healthcare Workers (MeCOVID): A Randomised Clinical Trial, Journal of Clinical Medicine, doi:10.3390/jcm11041139
Guenezan, Garcia, Strasters, Povidone Iodine Mouthwash, Gargle, and Nasal Spray to Reduce Nasopharyngeal Viral Load in Patients With COVID-19: A Randomized Clinical Trial, JAMA Otolaryngol Head Neck Surg, doi:10.1001/jamaoto.2020.5490
Guervilly, Circulating endothelial cells as a marker of endothelial injury in severe COVID -19, J. Infect. Dis, doi:10.1093/infdis/jiaa528
Gálvez-Barrón, Arroyo-Huidobro, Miňarro, COVID-19: Clinical Presentation and Prognostic Factors of Severe Disease and Mortality in the Oldest-Old Population: A Cohort Study, Gerontology, doi:10.1159/000515159.168
Gérain, Uebelhoer, Costes, NASAFYTOL® supplementation in adults hospitalized with COVID-19 infection: results from an exploratory open-label randomized controlled trial, Frontiers in Nutrition, doi:10.3389/fnut.2023.1137407/full
Gérain, Uebelhoer, Costes, NASAFYTOL® supplementation in adults hospitalized with COVID-19 infection: results from an exploratory open-label randomized controlled trial, Frontiers in Nutrition, doi:10.3389/fnut.2023.1137407/full
Gøtzsche, Why some of us no longer want to publish in prestigious medical journals
Haddad, Soliman, Wong, Fever integrates antimicrobial defences, inflammation control, and tissue repair in a cold-blooded vertebrate, Elife, doi:10.7554/eLife.83644.180
Hansen, Mogensen, Agergaard, High-dose coenzyme Q10 therapy versus placebo in patients with post COVID-19 condition: a randomized, phase 2, crossover trial, Lancet Reg Health Eur, doi:10.1016/j.lanepe.2022.100539
Hartono, Suryawati, Sari, The Effect of Curcumin and Virgin Coconut Oil Towards Cytokines Levels in COVID-19 Patients at Universitas Sebelas Maret Hospital, Surakarta, Indonesia, Pharmacognosy Journal, doi:10.5530/pj.2022.14.27
Hasan, Atrakji, Mehuaiden, The Effect of Melatonin on Thrombosis, Sepsis and Mortality Rate in COVID-19 Patients, International Journal of Infectious Diseases, doi:10.1016/j.ijid.2021.10.012
Hasan, Chiu, Salamanca, Effects of Chlorhexidine and Povidone-Iodine on the SARS-CoV-2 Load: A Systematic Review and Meta-analysis, Eur J Dent, doi:10.1055/s-0042-1753470.119
Hassaniazad, Eftekhar, Inchehsablagh, A triple-blind, placebo-controlled, randomized clinical trial to evaluate the effect of curcumin-containing nanomicelles on cellular immune responses subtypes and clinical outcome in COVID-19 patients, Phytotherapy Research, doi:10.1002/ptr.7294
Hegde, Girisa, Bharathwajchetty, Vishwa, Kunnumakkara, Curcumin formulations for better bioavailability: what we learned from clinical trials thus far?, ACS Omega
Hellou, Mohsin, Elemy, Effect of ArtemiC in patients with COVID-19: A Phase II prospective study, Journal of Cellular and Molecular Medicine, doi:10.1111/jcmm.17337
Ioannou, Berry, Rajeevan, Li, Mutalik et al., Effectiveness of Nirmatrelvir-Ritonavir Against the Development of Post-COVID-19 Conditions Among U.S. Veterans, Ann Intern Med, doi:10.7326/M23-1394
Izzo, Trimarco, Mone, Combining L-Arginine with vitamin C improves long-COVID symptoms: The LINCOLN Survey, Pharmacol Res, doi:10.1016/j.phrs.2022.106360
Jamir, Tripathi, Shankar, Determinants of Outcome Among Critically Ill Police Personnel With COVID-19: A Retrospective Observational Study From Andhra Pradesh, doi:10.7759/cureus.20394
Kanjanawasee, Seresirikachorn, Chitsuthipakorn, Snidvongs, Hypertonic Saline Versus Isotonic Saline Nasal Irrigation: Systematic Review and Meta-analysis, Am J Rhinol Allergy
Karimi, Zarei, Soleymani, Efficacy of Persian medicine herbal formulations (capsules and decoction) compared to standard care in patients with COVID-19, a multicenter open-labeled, randomized, controlled clinical trial, Phytotherapy Research, doi:10.1002/ptr.7277
Karimpour-Razkenari, Naderi-Behdani, Salahshoor, Melatonin as adjunctive therapy in patients admitted to the Covid-19, Annals of Medicine and Surgery, doi:10.1016/j.amsu.2022.103492
Kariwa, Fujii, Takashima, Inactivation of SARS coronavirus by means of povidone-iodine, physical conditions, and chemical reagents, Jpn. J. Vet. Res
Khan, Iqtadar, Mumtaz, Oral Co-Supplementation of Curcumin, Quercetin, and Vitamin D3 as an Adjuvant Therapy for Mild to Moderate Symptoms of COVID-19-Results From a Pilot Open-Label, Randomized Controlled Trial, Frontiers in Pharmacology, doi:10.3389/fphar.2022.898062/full
Khan, Iqtadar, Sami, Mumtaz, Oral Co-Supplementation of Curcumin, Quercetin, and Vitamin D3 as an Adjuvant Therapy for Mild to Moderate Symptoms of COVID-19-Results From a Pilot Open-Label, Randomized Controlled Trial, Frontiers in Pharmacology, doi:10.3389/fphar.2022.898062/full
Khan, Ullah, Aschner, Cheang, Akkol, Neuroprotective effects of quercetin in Alzheimer's disease, Biomolecules, doi:10.3390/biom10010059
Kim, Yoon, Lee, Lee, Serious Clinical Outcomes of COVID-19 Related to Acetaminophen or NSAIDs from a Nationwide Population-Based Cohort Study, Int J Environ Res Public Health, doi:10.3390/ijerph20053832.177
Kim, Yoon, Lee, Serious Clinical Outcomes of COVID-19 Related to Acetaminophen or NSAIDs from a Nationwide Population-Based Cohort Study, Int J Environ Res Public Health, doi:10.3390/ijerph20053832.174
Kolin, Kulm, Christos, Clinical, regional, and genetic characteristics of Covid-19 patients from UK Biobank, PLoS One, doi:10.1371/journal.pone.0241264.165
Koshak, Koshak, Mobeireek, Nigella sativa for the treatment of COVID-19: An openlabel randomized controlled clinical trial, Complementary Therapies in Medicine, doi:10.1016/j.ctim.2021.102769
Koshak, Koshak, Nigella sativa L as a potential phytotherapy for coronavirus disease 2019: a mini review of in silico studies, Curr Ther Res -Clin Exp, doi:10.1016/j.curtheres.2020.100602
Koshak, Wei, Koshak, Nigella sativa supplementation improves asthma control and biomarkers: a randomized, double-blind, placebo-controlled trial, Phyther Res, doi:10.1002/ptr.5761
Kritis, Karampela, Kokoris, Dalamaga, The combination of bromelain and curcumin as an immune-boosting nutraceutical in the prevention of severe COVID-19, Metabol Open, doi:10.1016/j.metop.2020.100066
Kunnumakkara, Bordoloi, Padmavathi, Monisha, Roy et al., the golden nutraceutical: Multitargeting for multiple chronic diseases, Br. J. Pharmacol
Lapi, Marconi, Grattagliano, To clarify the safety profile of paracetamol for home-care patients with COVID-19: a real-world cohort study, with nested case-control analysis, in primary care, Intern Emerg Med, doi:10.1007/s11739-022-03054-1.153
Leal, Yu, Chen, Paracetamol Is Associated with a Lower Risk of COVID-19 Infection and Decreased ACE2 Protein Expression: A Retrospective Analysis, COVID, doi:10.3390/covid1010018
Lerner, Serret-Larmande, Rance, Mining Electronic Health Records for Drugs Associated With 28-day Mortality in COVID-19: Pharmacopoeia-wide Association Study (PharmWAS), JMIR Med Inform, doi:10.2196/35190
Lucas, Czikora, Sridhar, Arginase 1: an unexpected mediator of pulmonary capillary barrier dysfunction in models of acute lung injury, Front Immunol, doi:10.3389/fimmu.2013.00228
Macfadden, Brown, Buchan, Screening Large Population Health Databases for Potential Coronavirus Disease 2019 Therapeutics: A Pharmacopeia-Wide Association Study of Commonly Prescribed Medications, Open Forum Infect Dis, doi:10.1093/ofid/ofac156.173
Majdalawieh, Fayyad, Immunomodulatory and anti-inflammatory action of Nigella sativa and thymoquinone: a comprehensive review, Int Immunopharmacol, doi:10.1016/j.intimp.2015.06.023
Majeed, Nagabhushanam, Shah, A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of a Nutritional Supplement (ImmuActive) for COVID-19 Patients, Evidence-Based Complementary and Alternative Medicine, doi:10.1155/2021/8447545
Manjani L, Desai N, Kohli, Effects of acetaminophen on outcomes in patients hospitalized with covid-19, Chest, doi:10.1016/j.chest.2021.07.992.157
Martinez Lamas, Is povidone iodine mouthwash effective against SARS-CoV-2? First in vivo tests, Oral Dis, doi:10.1111/odi.13526(2020).100
Matsuyama, Okura, Hashimoto, A prospective, randomized, open-label trial of early versus late povidone-iodine gargling in patients with COVID-19, Scientific Reports, doi:10.1038/s41598-022-24683-8
Mehrbod, Abdalla, Fotouhi, Immunomodulatory properties of quercetin-3-O-α-L-rhamnopyranoside from Rapanea melanophloeos against influenza a virus, BMC Complementary and Alternative Medicine
Mody, Effect of 8.4% Soda-Bicarbonate Steam Inhalation on the Course of Disease in Mild to Moderate Cases of Covid-19, Acta Scientific Orthopaedics
Mohamed, Baharom, Sulaiman, Early viral clearance among COVID-19 patients when gargling with povidone-iodine and essential oils: a pilot clinical trial, doi:10.1101/2020.09.07.20180448
Molla, Abul, Azad, A review on antiviral effects of Nigella Sativa L, Pharmacologyonline
Moreno-Martos, Verhamme, Ostropolets, Characteristics and outcomes of COVID-19 patients with COPD from the United States, South Korea, and Europe, Wellcome Open Res, doi:10.12688/wellcomeopenres.17403.2.172
Mousavi, Heydari, Mehravaran, Melatonin effects on sleep quality and outcomes of COVID-19 patients: An open-label, randomized, controlled trial, Journal of Medical Virology, doi:10.1002/jmv.27312
Ms, The anti-inflammatory, analgesic and antipyretic activity of Nigella sativa, J Ethnopharmacol, doi:10.1016/S0378-8741(01)00216-1
Muramoto, Takahashi, Halfmann, Replicative capacity of SARS-CoV-2 omicron variants BA.5 and BQ.1.1 at elevated temperatures, Lancet Microbe, doi:10.1016/S2666-5247(23)00100-3.181
Naghsh, Musazadeh, Nikpayam, Kavyani, Moridpour et al., Profiling Inflammatory Biomarkers following Curcumin Supplementation: An Umbrella Meta-Analysis of Randomized Clinical Trials, Evid.-Based Complement. Altern. Med
Natto, Bakhrebah, Afeef, The short-term effect of different chlorhexidine forms versus povidone iodine mouth rinse in minimizing the oral SARS-CoV-2 viral load: An open label randomized controlled clinical trial study, doi:10.22541/au.166675335.56566797/v1
Oei, Millar, Lily, Higher intake of dietary flavonols, specifically dietary quercetin, is associated with lower odds of frailty onset over 12 years of follow-up among adults in the Framingham Heart Study, Am J Clin Nutr, doi:10.1016/j.ajcnut.2023.04.013
Oh, Song, Lee, Musculoskeletal Disorders, Pain Medication, and in-Hospital Mortality among Patients with COVID-19 in South Korea: A Population-Based Cohort Study, Int J Environ Res Public Health, doi:10.3390/ijerph18136804.171
Oikonomou, Souvaliotis, Lampsas, Endothelial dysfunction in acute and long standing COVID-19: a prospective cohort study, Vasc. Pharm, doi:10.1016/j.vph.2022.106975
Onal, Treatment of COVID-19 patients with quercetin: a prospective, single center, randomized, controlled trial, Turk. J. Biol
Pantazopoulos, Chalkias, Miziou, A Hypertonic Seawater Nasal Irrigation Solution Containing Algal and Herbal Natural Ingredients Reduces Viral Load and SARS-CoV-2 Detection Time in the Nasal Cavity, Journal of Personalized Medicine, doi:10.3390/jpm13071093
Park, Lee, You, Non-steroidal anti-inflammatory agent use may not be associated with mortality of coronavirus disease 19, Sci Rep, doi:10.1038/s41598-021-84539-5.167
Pawar, Mastud, Pawar, Oral Curcumin With Piperine as Adjuvant Therapy for the Treatment of COVID-19: A Randomized Clinical Trial, Frontiers in Pharmacology, doi:10.3389/fphar.2021.669362/full
Peiris, Izcovich, Ordunez, Challenges to delivering evidence-based management for long COVID, BMJ Evidence-Based Medicine
Pierro, Derosa, Maffioli, Possible therapeutic effects of adjuvant quercetin supplementation against early-stage COVID-19 infection: A prospective, randomized, controlled, and open-label study, International Journal of General Medicine, doi:10.2147/IJGM.S318720
Pierro, Iqtadar, Khan, Potential clinical benefits of quercetin in the early stage of COVID-19: Results of a second, pilot, randomized, controlled and open-label clinical trial, International Journal of General Medicine, doi:10.2147/IJGM.S318949
Pierro, Khan, Iqtadar, Quercetin as a possible complementary agent for early-stage COVID-19: Concluding results of a randomized clinical trial, Frontiers in Pharmacology
Praditya, Kirchhoff, Brüning, Rachmawati, Steinmann et al., Anti-infective properties of, Hulscher et al. Cureus, doi:10.7759/cureus.4920411of12
Prasad, Tyagi, Aggarwal, Recent Developments in Delivery, Bioavailability, Absorption and Metabolism of Curcumin: The Golden Pigment from Golden Spice, Cancer Res. Treat
Qaseem, Yost, Miller, Outpatient Treatment of Confirmed COVID-19: Living, Rapid Practice Points From the American College of Physicians (Version 1), Ann Intern Med, doi:10.7326/M22-2249
Ramalingam, Graham, Dove, A pilot, open labelled, randomised controlled trial of hypertonic saline nasal irrigation and gargling for the common cold, Sci Rep, doi:10.1038/s41598-018-37703-3.130
Ramlall, Zucker, Tatonetti, Melatonin is significantly associated with survival of intubated COVID-19 patients, medRxiv, doi:10.1101/2020.10.15.20213546v1
Ravichandran, Mohan, Sukumaran, An open label randomized clinical trial of Indomethacin for mild and moderate hospitalised Covid-19 patients, Sci Rep, doi:10.1038/s41598-022-10370-1
Ravichandran, Mohan, Sukumaran, An open label randomized clinical trial of Indomethacin for mild and moderate hospitalised Covid-19 patients, Sci Rep, doi:10.1038/s41598-022-10370-1
Razmpoosh, Safi, Abdollahi, The effect of Nigella sativa on the measures of liver and kidney parameters: a systematic review and meta-analysis of randomized-controlled trials, Pharmacol Res, doi:10.1016/j.phrs.2020.104767
Rees, Rostad, Mantus, Altered amino acid profile in patients with SARS-CoV-2 infection, Proc Natl Acad Sci
Reese, Coleman, Chan, Cyclooxygenase inhibitor use is associated with increased COVID-19 severity, medRxiv, doi:10.1101/2021.04.13.21255438
Reizine, Lesouhaitier, Gregoire, SARS-CoV-2-induced ARDS associates with MDSC expansion, lymphocyte dysfunction, and arginine shortage, J Clin Immunol
Rinott, Kozer, Shapira, Ibuprofen use and clinical outcomes in COVID-19 patients, Clin Microbiol Infect, doi:10.1016/j.cmi.2020.06.003.152
Ritsinger, Bodegård, Kristofi, History of heart failure and chronic kidney disease and risk of all-cause death after COVID-19 during the first three waves of the pandemic in comparison with influenza outbreaks in Sweden: a registry-based, retrospective, case-control study, BMJ Open, doi:10.1136/bmjopen-2022-069037.178
Roberts, Delgado Nunes, Buckner, Paracetamol: not as safe as we thought? A systematic literature review of observational studies, Ann Rheum Dis, doi:10.1136/annrheumdis-2014-206914.182
Rondanelli, Perna, Gasparri, Promising Effects of 3-Month Period of Quercetin Phytosome® Supplementation in the Prevention of Symptomatic COVID-19 Disease in Healthcare Workers: A Pilot Study, Life, doi:10.3390/life12010066
Sacchi, Grassi, Notari, Expansion of myeloid derived suppressor cells contributes to platelet activation by L-Arginine deprivation during SARS-CoV-2 infection, Cells, doi:10.3390/cells10082111
Sadeghizadeh, Asadollahi, Jahangiri, Promising clinical outcomes of nano-curcumin treatment as an adjunct therapy in hospitalized COVID-19 patients: A randomized, double-blinded, placebocontrolled trial, Phytotherapy Research, doi:10.1002/ptr.7844
Said, Abdulbaset, El-Kholy, The effect of Nigella sativa and vitamin D3 supplementation on the clinical outcome in COVID-19 patients: A randomized controlled clinical trial, Frontiers in Pharmacology, doi:10.3389/fphar.2022.1011522/full
Sankhe, Memane, Gawali, A Randomized, Controlled, Blinded, Parallel Group, Clinical Trial to study the role of Ayurcov (AyurCoro3), one day regimen as an adjuvant therapy for COVID-19 disease management, at dedicated Covid Hospital (DCH) in India, Complementary Therapies in Medicine, doi:10.1016/j.ctim.2022.102824
Sankhe, Memane, Gawali, A prospective, multi center, single blind, randomized controlled study evaluating "AyurCoro3" as an adjuvant in the treatment of mild to moderate COVID, Journal of Ayurveda and Integrated Medical Sciences, doi:10.21760/jaims.6.4.6
Seet, Quek, Ooi, Positive impact of oral hydroxychloroquine and povidone-iodine throat spray for COVID-19 prophylaxis: an open-label randomized trial, International Journal of Infectious Diseases, doi:10.1016/j.ijid.2021.04.035
Seneviratne, Balan, Ko, Efficacy of commercial mouth-rinses on SARS-CoV-2 viral load in saliva: randomized control trial in Singapore, Infection
Sestili, Fimognari, Paracetamol-Induced Glutathione Consumption: Is There a Link With Severe COVID-19 Illness?, Front Pharmacol, doi:10.3389/fphar.2020.579944.179
Setayesh, Karimi, Zargaran, Efficacy of a Persian herbal medicine compound on coronavirus disease 2019 (COVID-19): a randomized clinical trial, Integrative Medicine Research
Sharif, Opu, Khan, Impact of Zinc, Vitamins C and D on Disease Prognosis among Patients with COVID-19 in Bangladesh: A Cross-Sectional Study, Nutrients, doi:10.3390/nu14235029.154
Shohan, Nashibi, Mahmoudian-Sani, The therapeutic efficacy of quercetin in combination with antiviral drugs in hospitalized COVID-19 patients: A randomized controlled trial, European Journal of Pharmacology, doi:10.1016/j.ejphar.2021.174615
Soares, Da Silva, Soares, Preliminary observation of the use of sodium bicarbonate solution as an adjunct in the treatment of coronavirus 2019 disease (COVID-19): prognosis improvement in patients requiring intensive care / Observação preliminar do uso de solução de bicarbonato de sódio como coadjuvante no tratamento da doença coronavírus 2019 (COVID-19): melhora do prognóstico na necessidade de terapia intensiva, Brazilian Journal of Development, doi:10.34117/bjdv7n12-039
Sobhy, Saleh, Abdelatty, Early Use of Ibuprofen in Moderate Cases of COVID-19 Might be a Promising Agent to Attenuate the Severity of Disease: A Randomized Controlled Trial, Open Anesthesia Journal
Stufano, Isgrò, Palese, Oxidative Damage and Post-COVID Syndrome: A Cross-Sectional Study in a Cohort of Italian Workers, Int J Mol Sci
Sulistyani, Julia, Soeprapto, The effects of mouth rinsing and gargling with mouthwash containing povidone-iodine and hydrogen peroxide on the cycle threshold value of Severe Acute Respiratory Syndrome Coronavirus 2: A randomized controlled trial of asymptomatic and mildly symptomatic patients, Research, doi:10.12688/f1000research.110843.1
Sánchez-González, Mahıllo-Fernandez, Villar-Alvarez, What if melatonin could help COVID-19 severe patients?, doi:10.5664/jcsm.9554
Sánchez-Rico, De La Muela, Herrera-Morueco, Melatonin does not reduce mortality in adult hospitalized patients with COVID-19: a multicenter retrospective observational study, Journal of Travel Medicine, doi:10.1093/jtm/taab195/6523003
Tahmasebi, Saeed, Temirgalieva, Nanocurcumin improves Treg cell responses in patients with mild and severe SARS-CoV2, Life Sciences
Thimmulappa, Mudnakudu-Nagaraju, Shivamallu, Subramaniam, Radhakrishnan et al., Antiviral and immunomodulatory activity of curcumin: A case for prophylactic therapy for COVID-19, Heliyon
Thomas, Williams, Aldous, A Randomised, Double-Blind, Placebo-Controlled Trial Evaluating Concentrated Phytochemical-Rich Nutritional Capsule in Addition to a Probiotic Capsule on Clinical Preprints, doi:10.3390/covid2040031
Tosato, Calvani, Picca, Effects of l-Arginine Plus Vitamin C Supplementation on Physical Performance, Endothelial Function, and Persistent Fatigue in Adults with Long COVID: A Single-Blind Randomized Controlled Trial, Nutrients, doi:10.3390/nu14234984
Ujjan, Khan, Nigar, The possible therapeutic role of curcumin and quercetin in the early-stage of COVID-19-Results from a pragmatic randomized clinical trial, Frontiers in Nutrition, doi:10.3389/fnut.2022.1023997/full
Ujjan, Khan, Nigar, The possible therapeutic role of curcumin and quercetin in the early-stage of COVID-19-Results from a pragmatic randomized clinical trial, Frontiers in Nutrition, doi:10.3389/fnut.2022.1023997/full
Valizadeh, Abdolmohammadi-Vahid, Danshina, Nano-curcumin therapy, a promising method in modulating inflammatory cytokines in COVID-19 patients, Int. Immunopharmacol, doi:10.1016/j.intimp.2020.107088
Vlachou, Siamidi, Dedeloudi, Konstantinidou, Papanastasiou, Pineal hormone melatonin as an adjuvant treatment for COVID-19 (Review), Int. J. Mol. Med, doi:10.3892/ijmm.2021.4880
Wang, Zhang, Zhang, Efficacy of nasal irrigation and oral rinse with sodium bicarbonate solution on virus clearance for COVID-19 patients, Front Public Health, doi:10.3389/fpubh.2023.1145669.124
Who, A clinical case definition of post COVID-19 condition by a Delphi consensus
Wijnands, Castermans, Hommen, Meesters, Poeze, Arginine and citrulline and the immune response in sepsis, Nutrients, doi:10.3390/nu7031426
Wu, Meininger, Mcneal, Bazer, Rhoads, Role of L-Arginine in nitric oxide synthesis and health in humans, Adv. Exp. Med. Biol, doi:10.1007/978-3-030-74180-8_10
Xie, Brash, Turkmen, Risk of COVID-19 Diagnosis and Hospitalisation in Patients with Osteoarthritis or Back Pain Treated with Ibuprofen Compared to Other NSAIDs or Paracetamol: A Network Cohort Study, Drugs
Xu, Shi, Wang, Pathological findings of COVID-19 associated with acute respiratory distress syndrome, The Lancet Respiratory Medicine, doi:10.1016/S2213-2600(20)30076-X
Zarabanda, Vukkadala, Phillips, The Effect of Povidone-Iodine Nasal Spray on COVID-19 Nasopharyngeal Viral Load in Patients: A Randomized Control Trial, Laryngoscope, doi:10.1002/lary.29935
Zupanets, Holubovska, Tarasenko, Quercetin effectiveness in patients with COVID-19 associated pneumonia, Zaporozhye Med. J, doi:10.14739/2310-1210.2021.5.231714
{ 'indexed': { 'date-parts': [[2023, 12, 18]], 'date-time': '2023-12-18T05:06:12Z', 'timestamp': 1702875972826}, 'posted': {'date-parts': [[2023, 12, 15]]}, 'group-title': 'Public Health and Healthcare', 'reference-count': 0, 'publisher': 'MDPI AG', 'license': [ { 'start': { 'date-parts': [[2023, 12, 15]], 'date-time': '2023-12-15T00:00:00Z', 'timestamp': 1702598400000}, 'content-version': 'unspecified', 'delay-in-days': 0, 'URL': 'http://creativecommons.org/licenses/by/4.0'}], 'content-domain': {'domain': [], 'crossmark-restriction': False}, 'accepted': {'date-parts': [[2023, 12, 14]]}, 'abstract': '<jats:p>The official recommendations to manage COVID-19 in the outpatient setting focus on ' 'high-cost drugs (remdesivir, nirmatrelvir-ritonavir, molnupiravir), suffering from many ' 'problems. &#x0D;\n' 'Therefore, one may consider also other treatments meeting these criteria: &#x0D;\n' '• promising effectiveness, based on favorable randomized controlled trials (RCTs) of ' 'sufficient validity. Even without definitive evidence, physicians and informed patients can ' 'consider them if they are also: &#x0D;\n' '• safe, to the state of knowledge&#x0D;\n' '• with a very favorable opportunity cost&#x0D;\n' '• biologically plausible/not implausible&#x0D;\n' '• accessible&#x0D;\n' '• without major commercial sponsors in the trials promoting them, and with researchers ' 'without major conflicts of interests.&#x0D;\n' 'The main focus is on a limited group of functional foods and some their active ingredients, ' 'with further mention of other substances of different origin, yet fully meeting all the ' 'aforementioned criteria. &#x0D;\n' 'The functional foods and substances described and discussed certainly do not cover all the ' 'known effective therapies for COVID-19 (in one case also for Long-COVID), but the only ' 'therapies proposed in this paper currently satisfy all the above criteria.&#x0D;\n' 'The supporting scientific evidence will favor meta-analyses of RCTs that include the most ' 'definitive outcome: all-cause mortality, i.e. the outcome that most fully informed people ' 'tend to prioritize. Furthermore, the reported evidence favors clinical studies of the most ' 'valid design, i.e. RCTs.</jats:p>', 'DOI': '10.20944/preprints202312.1178.v1', 'type': 'posted-content', 'created': { 'date-parts': [[2023, 12, 18]], 'date-time': '2023-12-18T00:49:32Z', 'timestamp': 1702860572000}, 'source': 'Crossref', 'is-referenced-by-count': 0, 'title': 'Neglected Effective Early Therapies against COVID-19: Focus on Functional Foods and Related ' 'Active Substances. A Review', 'prefix': '10.20944', 'author': [ { 'ORCID': 'http://orcid.org/0000-0002-4365-6814', 'authenticated-orcid': False, 'given': 'Alberto', 'family': 'Donzelli', 'sequence': 'first', 'affiliation': []}], 'member': '1968', 'container-title': [], 'original-title': [], 'deposited': { 'date-parts': [[2023, 12, 18]], 'date-time': '2023-12-18T00:51:07Z', 'timestamp': 1702860667000}, 'score': 1, 'resource': {'primary': {'URL': 'https://www.preprints.org/manuscript/202312.1178/v1'}}, 'subtitle': [], 'short-title': [], 'issued': {'date-parts': [[2023, 12, 15]]}, 'references-count': 0, 'URL': 'http://dx.doi.org/10.20944/preprints202312.1178.v1', 'relation': {}, 'subject': [], 'published': {'date-parts': [[2023, 12, 15]]}, 'subtype': 'preprint'}
Loading..
Please send us corrections, updates, or comments. c19early involves the extraction of 100,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.
  or use drag and drop   
Submit