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Index | Go Back | Email This Information | Print Untitled Document Isoniazid

Isoniazid

The following information is an educational aid only. It is not intended as a medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Isoniazid

(eye soe NYE a zid)

Canadian Brand Names

Isotamine®; PMS-Isoniazid

Mexican Brand Names

Valifol

Pharmacologic Category

Antitubercular Agent

What key warnings should I know about before taking this medicine?

This medicine may cause hepatitis.

Reasons not to take this medicine

¢ If you have an allergy to isoniazid or any other part of this medicine.

¢ Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

¢ If you have active liver disease.

¢ If you have had liver damage while taking isoniazid in the past.

What is this medicine used for?

¢ This medicine is used to prevent or treat tuberculosis.

How does it work?

¢ Isoniazid works to injure the bacteria and fight the infection.

How is it best taken?

¢ To gain the most benefit, do not miss doses.

¢ Take this medicine on an empty stomach. Take 1 hour before or 2 hours after meals.

¢ Follow diet instructions. Certain foods and drinks taken with this medicine can cause very dangerous reactions such as sudden high blood pressure. To prevent these problems, get a list of foods to avoid from a nutritionist.

¢ Avoid eating foods such as aged cheeses and meats, soy sauce, soy bean including paste, Miso soup, Italian green beans (fava beans), snowpea or broad bean pods, sauerkraut, kimchee, concentrated yeast extracts (Marmite), wine, beer including alcohol-free beer.

¢ If medicine is stopped, follow diet for at least 2 more weeks.

¢ A liquid (syrup) is available if you cannot swallow pills.

¢ Those who have feeding tubes can also use the liquid. Flush the feeding tube before and after medicine is given.

What do I do if I miss a dose? (does not apply to patients in the hospital)

¢ Take a missed dose as soon as possible.

¢ If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

¢ Do not take a double dose or extra doses.

¢ Do not change dose or stop medicine. Talk with healthcare provider.

What are the precautions when taking this medicine?

¢ If you have diabetes, talk with healthcare provider.

¢ If you have kidney disease, talk with healthcare provider.

¢ Check medicines with healthcare provider. This medicine may not mix well with other medicines.

¢ Do not take antacids within 1 hour of this medicine.

¢ Avoid alcohol (includes wine, beer, and liquor).

¢ Tell healthcare provider if you are pregnant or plan on getting pregnant.

¢ Tell healthcare provider if you are breast-feeding.

What are some possible side effects of this medicine?

¢ Belly pain.

¢ Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.

¢ Liver damage can rarely occur.

What should I monitor?

¢ Change in condition being treated. Is it better, worse, or about the same?

¢ If you are diabetic, this medicine may interfere with Clinitest®. Use another method of urine glucose testing like Clinistix® or Tes-Tape®.

¢ Check blood work (liver function). Talk with healthcare provider.

¢ Have an eye exam.

¢ Follow up with healthcare provider.

Reasons to call healthcare provider immediately

¢ If you suspect an overdose, call your local poison control center or emergency department immediately.

¢ Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.

¢ Severe nausea or vomiting.

¢ Not hungry.

¢ Dark urine or yellow skin or eyes.

¢ Feeling extremely tired or weak.

¢ Numbness and tingling of feet or hands.

¢ Sudden change in vision, eye pain or irritation.

¢ Any rash.

¢ No improvement in condition or feeling worse.

How should I store this medicine?

¢ Store at room temperature.

¢ Protect from light.

¢ Protect tablets from moisture. Do not store in a bathroom or kitchen.

General statements

¢ If you have a life-threatening allergy, wear allergy identification at all times.

¢ Do not share your medicine with others and do not take anyone else's medicine.

¢ Keep all medicine out of the reach of children and pets.

¢ Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

¢ Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

¢ Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.



Created: 2006-10-13 13:21:54.0

Modified: 2008-02-08 14:59:23.0

Lexi-PALSTM © (1977)-(2008) Lexi-Comp, Inc. All rights reserved.

All EBSCO Publishing proprietary, consumer health and medical information found on this site is accredited by URAC. URAC's Health Web Site Accreditation Program requires compliance with 53 rigorous standards of quality and accountability, verified by independent audits.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.

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