Isoniazid Oral Tablet 100Mg Drug Medication Dosage Information
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Isoniazid: Oral tablet (100mg)

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Drug Image file DrugItem_449.JPG
Isoniazid 100mg Tab
Barr Laboratories Inc a Division of Teva USA
Pill Identification: 100  |  Barr 066
Drug Image file DrugItem_5829.JPG
Isoniazid 100mg Tab
Eon Labs Inc a Division of Sandoz
Pill Identification: E 4354 

What is this Medicine?

ISONIAZID (eye soe NYE a zid) is used to prevent or to treat tuberculosis (TB).

CVS Pharmacy Patient Statistics for Isoniazid: Oral tablet(100mg)
Generic vs. Brand Name Usage*
*Brand contains same active ingredient but may not represent FDA-approved generic equivalent
Usage By Strength
In-Depth Information
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Isoniazid 100mg Tablet

NDC: 005550066
  • Prescription Required
  • Not a Controlled Drug
    (CSA Schedule)
  • FDA Approved




FDA approved for the following conditions:
Tuberculosis Infection, Tuberculosis Prophylaxis

Sometimes used for but not FDA approved for the following conditions:
Tremor

Storage Information
Store at room temperature (between 59 to 86 degrees F)
Protect from light
Protect from moisture
Isoniazid 100mg Tablet
Drug Image file DrugItem_449.JPG
Barr Laboratories Inc a Division of Teva USA
Pill Identification: 100  |  Barr 066
Shape: round
Color: white

Reported Side Effects for Isoniazid 100mg Tablet

Liver Infection Incidence:
<2.3%*
Severity: MODERATE
Onset: DELAYED
Elevated Hepatic Enzymes Incidence:
10.0-20.0%*
Severity: MODERATE
Onset: DELAYED
Nerve Pain Incidence:
>44.0%*
Severity: MODERATE
Onset: DELAYED
*This is an approximate aggregated range of reported side effects from clinical studies performed on this drug. Your experience with this drug may be different.
Daily Life Interactions for Isoniazid 100mg Tablet

Elements of your daily lifestyle may have an effect on the medications you are taking. Drug interactions can result in unwanted side effects, reduce the effectiveness of your medicine or possibly increase the action of a particular medicine.

Major Lifestyle Interaction
Alcohol and Isoniazid 100mg Tablet(Isoniazid)
Alcohol and Isoniazid(Isoniazid)
Do not drink Ethanol-containing beverages while taking Isoniazid, INH. Side effects from Isoniazid, INH can get worse. Ethanol may also decrease the actions of Isoniazid, INH by reducing the amount of INH in the body. If you develop fatigue, loss of appetite, unusual tiredness or weakness, or nausea/vomiting, contact your health care provider immediately. Also, some ethanol-based products also contain tyramine which can cause flushing, chills, or racing or pounding heartbeat if taken with Isoniazid, INH. These products include some beers (including reduced-ethanol and ethanol-free beer), red wines, sherry, hard liquor, and liqueurs. Avoid ethanol-containing beverages while taking Isoniazid, INH.
Moderate Lifestyle Interaction
Tyramine-containing foods and Isoniazid 100mg Tablet(Isoniazid)
Tyramine-containing foods and Isoniazid(Isoniazid)
Food interactions with Isoniazid,INH may cause increased blood pressure or other effects. Try to limit the following foods in the diet: aged cheeses; soy sauce; fava bean or broad bean pods; smoked or pickled meats, poultry; or fish (lox, herring, smoked salmon); fermented sausages (bologna, pepperoni, salami, summer sausage); bananas; avocados; and any over-ripe fruit. Dietary restrictions should continue for at least 2 weeks after stopping Isoniazid, INH.
Moderate Lifestyle Interaction
Caffeine-containing Foods/Beverages and Isoniazid 100mg Tablet(Isoniazid)
Caffeine-containing Foods/Beverages and Isoniazid(Isoniazid)
Try to limit caffeine intake while taking Isoniazid, INH. Side effects from Isoniazid, INH may get worse if you take Caffeine, like increased blood pressure, confusion, restlessness, or other side effects. All preparations containing caffeine should be used sparingly such as tea, coffee, chocolate, cola, or 'stay awake' products. Some nonprescription medicines also contain caffeine and should not be taken along with Isoniazid, INH.
Moderate Lifestyle Interaction
Marijuana and Isoniazid 100mg Tablet(Isoniazid)
Marijuana and Isoniazid(Isoniazid)
Isoniazid, INH can theoretically decrease the elimination of Marijuana, Medical from the body. Side effects from Marijuana, Medical may worsen if you take Isoniazid, INH. You may feel drowsy or more tired. Do not drive or operate machinery until you know how these drugs affect you. Contact your health care provider immediately if you notice slurred speech, confusion, increases heart rate, or palpitations while taking Marijuana, Medical.
Pregnancy & Lactation Information
FIRST Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

SECOND Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

THIRD Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

Lactation

Compatible - This drug is generally safe to take by nursing mothers.


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