Brand name:

Zantac

Why is Zantac prescribed?

Zantac is used to decrease the production of stomach acid, which may reduce irritation to the stomach lining and help heal ulcers and other gastrointestinal conditions. It's prescribed for the following:

• Short-term treatment (4 to 8 weeks) of active ulcers, specifically duodenal ulcers or benign stomach ulcers (also called gastric ulcers).
• Maintenance therapy (at a reduced dosage) to help keep the ulcer from coming back after it has healed.
• Treatment of conditions in which the stomach produces too much acid, such as Zollinger-Ellison syndrome and systemic mastocytosis.
• Treatment of gastroesophageal reflux disease (also known as GERD, which occurs when stomach acid backs up into the esophagus).
• Treating and maintaining healing of erosive esophagitis (severe inflammation of the esophagus).

Over-the-counter versions of Zantac are also available for relieving and preventing heartburn associated with acid indigestion and sour stomach. However, the prescription version is still needed for treatment of ulcers, esophagitis, GERD, and other conditions that require monitoring by a doctor.

Most important fact about Zantac

Zantac helps to prevent the recurrence of stomach or duodenal ulcers and aids the healing of ulcers that do occur.

How should you take Zantac?

Take Zantac exactly as prescribed by your doctor. Make sure you follow the diet your doctor recommends.

Dissolve "Efferdose" tablets and granules in 6 to 8 ounces of water before taking them.

You can take an antacid for pain while you are taking Zantac.

--If you miss a dose...

Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Never take 2 doses at the same time.

--Storage instructions...

Store Zantac at room temperature in the container it came in, tightly closed and away from moist places and direct light. Keep Zantac Syrup from freezing.

Zantac side effects

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Zantac.

• Side effects may include:
  Headache, sometimes severe

Why should Zantac not be prescribed?

If you are sensitive to or have ever had an allergic reaction to Zantac or similar drugs such as Tagamet, you should not take this medication. Make sure that your doctor is aware of any drug reactions that you have experienced.

Special warnings about Zantac

A stomach malignancy could be present, even if your symptoms have been relieved by Zantac.

If you have kidney or liver disease, Zantac should be used with caution.

If you have phenylketonuria, you should be aware that the "Efferdose" tablets and granules contain phenylalanine.

Possible food and drug interactions when taking Zantac

If Zantac is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Zantac with the following:

Alcohol
Blood-thinning drugs such as Coumadin
Diazepam (Valium)
Diltiazem (Cardizem)
Enoxacin (Penetrex)
Glipizide (Glucotrol)
Glyburide (DiaBeta, Micronase)
Itraconazole (Sporanox)
Ketoconazole (Nizoral)
Metformin (Glucophage)
Nifedipine (Procardia)
Phenytoin (Dilantin)
Procainamide (Procan SR)
Sucralfate (Carafate)
Theophylline (Theo-Dur)
Triazolam (Halcion)

Special information if you are pregnant or breastfeeding

The effects of Zantac in pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately. Zantac appears in breast milk and could affect a nursing infant. If Zantac is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with Zantac is finished.

Recommended dosage for Zantac

ADULTS

Overdosage

Any medication taken in excess can have serious consequences. If you suspect an overdose, seek medical attention immediately.

Information concerning Zantac overdosage is limited. However, an abnormal manner of walking, low blood pressure, and exaggerated side effect symptoms may be signs of an overdose.

If you experience any of these symptoms, notify your doctor immediately.