What is the most important information I should know about ISONIAZID?
HOW TO USE THIS MEDICINE Follow the directions for using this medicine provided by your doctor. Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure this dose. TAKE THIS MEDICINE ON AN EMPTY STOMACH at least 1 hour before or 2 hours after a meal. IF YOU ALSO TAKE AN ANTACID, take this medicine at least 1 hour before you take the antacid. STORE THIS MEDICINE at room temperature between 68 and 77 degrees F (20 and 25 degrees C), in a tightly-closed container, away from heat and light. TO CLEAR UP YOUR INFECTION COMPLETELY, continue taking this medicine for the full course of treatment even if you feel well. Do not miss any doses. IF YOU MISS A DOSE OF THIS MEDICINE, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once. COMMON USES This medicine is an antibacterial used to treat or prevent tuberculosis (TB) infection.
It is important to take isoniazid regularly to get the most benefit. Your doctor may also want you to take a supplemental vitamin B6 (pyridoxine) tablet daily during treatment to prevent numbness and tingling caused by low levels of this vitamin. Your doctor may want you to have blood tests or other medical evaluations during treatment with isoniazid to monitor progress and side effects.
