Isoniazid Syrup

• If you have an allergy to isoniazid or any other part of isoniazid syrup.
• If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
• If you have had very bad side effects while taking isoniazid in the past, like liver problems, drug fever, chills, or arthritis.
• If you had liver problems while taking some other drug in the past.

This is not a list of all drugs or health problems that interact with this medicine.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take isoniazid syrup with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

Use isoniazid syrup as ordered by your doctor. Read all information given to you. Follow all instructions closely.

• To gain the most benefit, do not miss doses.
• Take on an empty stomach. Take 1 hour before or 2 hours after meals.
• Keep taking this medicine as you have been told by your doctor or other health care provider, even if you feel well.
• Measure liquid doses carefully. Use the measuring device that comes with isoniazid syrup. If there is none, ask the pharmacist for a device to measure this medicine.

What do I do if I miss a dose?

• Take a missed dose as soon as you think about it.
• If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
• Do not take 2 doses at the same time or extra doses.

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Upset stomach or throwing up.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

• Store at room temperature.
• Store in a dry place. Do not store in a bathroom.
• Protect from light.
• Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
• Check with your pharmacist about how to throw out unused drugs.