Alcohol can have harmful interactions with various medications, affecting their effectiveness. According to Drug Patent Watch, alcohol can interact with medications such as disulfiram, metronidazole, and tinidazole, leading to adverse effects. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) warns that mixing alcohol with medications can cause drowsiness, dizziness, liver damage, and other serious health risks. Research published in the National Center for Biotechnology Information (NCBI) highlights that alcohol can alter the metabolism of medications, potentially reducing their efficacy or increasing their toxicity. It is crucial to consult healthcare professionals before consuming alcohol while taking medications to avoid harmful interactions and ensure the safe and effective use of medications.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ALCOHOL
[2] https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/harmful-interactions-mixing-alcohol-with-medicines
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761694/