¿How should I take Isoniazid?

TakeIsoniazid exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you. Take each dose with a full glass (8 ounces) of water. TakeIsoniazid on an empty stomach 1 hour before or 2 hours after meals. If nausea occurs, ask your doctor if you can takeIsoniazid with food. Take all of theIsoniazid that has been prescribed for you even if you begin to feel better. Your symptoms may begin to improve before the infection is completely treated. It is important to takeIsoniazid 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 withIsoniazid to monitor progress and side effects. Store this medication at room temperature away from moisture and heat.