American Journal of Research in Medical Sciences. 2019; 4(1):(33-55)
Clinically important and pharmacologically relevant drug interactions with alcohol
Naina Mohamed Pakkir Maideen
Methods: The databases such as Medline/PMC/PubMed, Google Scholar, Science Direct, Cochrane Library, Directory of open access journals, and reference lists were searched to identify related articles.
Results: Major pharmacokinetic drug interactions of alcohol are mediated by the drugs inhibiting aldehyde dehydrogenase (ALDH) enzyme and the pharmacodynamic drug interactions by the drugs potentiating central nervous system (CNS) depressant activities.
Conclusion: The drugs inhibiting ALDH, especially ALDH2 enzyme, can increase the risk of acetaldehyde associated adverse effects or disulfiram-like reactions such as facial flushing, nausea, and vomiting in alcoholics. The drugs, such as cephalosporins, metronidazole, sulphonamides, isoniazid, some antifungals, and sulfonylureas, may elevate the risk of disulfiram-like reactions while consuming alcohol concomitantly. Alcohol may potentiate the CNS depressant activity of drugs such as benzodiazepines, barbiturates, phenothiazines, opioid analgesics, and antihistamines. The risk of orthostatic hypotension might be elevated by the concomitant use of nitrates and alcohol and the risk of upper gastrointestinal bleeding is high among alcoholics taking nonsteroidal anti-inflammatory drugs. The prescribers and the pharmacists are required to be aware of medications interacting with alcohol to prevent adverse outcomes.