I have been taking Isoniazid with Pyridoxine for almost 6 month now. I was told by my doctor not to drink any alcohol while on the medication and I have followed her instructions to the T with out one drop of alcohol in my system for the entire time I have been on the pills. I will be taking my last pill next week (July 20th) and I am wondering at which point will it be safe to drink alcohol again. Since beginning the pills I have graduated college, passed my registry, and found a job and I have been planning a late celebration for after I finish the pills. I currently have plans to drink a couple days after finishing the pills but really celebrating on the 24th which is the weekend following my final pill. Anyway, when should it be safe to drink a few beers after finishing off my prescriptions?