1. Smith SM, Schroeder K, Fahey T. Over‐the‐counter (OTC) medications for acute cough in children and adults in community settings. Cochrane Database Syst. Rev. 2014;
2. DeGeorge KC, Ring DJ, Dalrymple SN. Treatment of the Common Cold. Am. Fam. Physician 2019;100:281–9.
3. Driel ML van, Scheire S, Deckx L, Gevaert P, Sutter AD. What treatments are effective for common cold in adults and children? BMJ 2018;363:k3786.
4. Green JL, Wang GS, Reynolds KM, Banner W, Bond GR, Kauffman RE, et al. Safety Profile of Cough and Cold Medication Use in Pediatrics. Pediatrics 2017;139:e20163070.
5. FDA. FDA restricts use of prescription codeine pain and cough medicines and tramadol pain medicines in children; recommends against use in breastfeeding women. 2022. https://www.fda.gov/drugs/fda-drug-safety-podcasts/fda-drug-safety-podcast-fda-restricts-use-prescription-codeine-pain-and-cough-medicines-and-tramadol
6. Wells JS, Bergin M, Van Hout MC, McGuinness P, De Pleissisc J, Rich E, et al. Purchasing Over The Counter (OTC) Medicinal Products Containing Codeine - Easy Access, Advertising, Misuse and Perceptions of Medicinal Risk. J Pharm Pharm Sci. 2018;21:286–95.
7. Schifano F, Chiappini S, Miuli A, Mosca A, Santovito MC, Corkery JM, et al. Focus on Over-the-Counter Drugs’ Misuse: A Systematic Review on Antihistamines, Cough Medicines, and Decongestants. Front Psychiatry 2021;12. https://www.frontiersin.org/article/10.3389/fpsyt.2021.657397
8. Schifano F, Chiappini S, Miuli A, Mosca A, Santovito MC, Corkery JM, Guirguis A, Pettorruso M, Di Giannantonio M, Martinotti G. Focus on Over-the-Counter Drugs' Misuse: A Systematic Review on Antihistamines, Cough Medicines, and Decongestants. Front Psychiatry. 2021 May 7;12:657397. doi: 10.3389/fpsyt.2021.657397.
9. Windhab LG, Gastberger S, Hulka LM, Baumgartner MR, Soyka M, Müller TJ, Seifritz E, Mutschler J. Dextromethorphan Abuse Among Opioid-Dependent Patients. Clin Neuropharmacol. 2020 Sep/Oct;43(5):127-133. doi: 10.1097/WNF.0000000000000403.
10. Wang GS, Reynolds KM, Banner W, Bond GR, Kauffman RE, Palmer RB, et al. Medication Errors From Over-the-Counter Cough and Cold Medications in Children. Acad Pediatr 2020;20:327–32.
11. Albrecht HH, Dicpinigaitis PV, Guenin EP. Role of guaifenesin in the management of chronic bronchitis and upper respiratory tract infections. Multidiscip Respir Med. 2017;12:31.
12. Morice A, Kardos P. Comprehensive evidence-based review on European antitussives. BMJ Open Respir Res. 2016 Aug 5;3(1):e000137. doi: 10.1136/bmjresp-2016-000137. PMID: 27547407; PMCID: PMC4985807.
13. Birring SS, Brew J, Kilbourn A, Edwards V, Wilson R, Morice AH. Rococo study: a real-world evaluation of an over-the-counter medicine in acute cough (a multicentre, randomised, controlled study). BMJ Open. 2017 Jan 16;7(1):e014112. doi: 10.1136/bmjopen-2016-014112.