Important Treatment Instructions for Tagamet

Dose of Tagamet for GERD

The recommended dosage of Tagamet for gastroesophageal reflux disease (GERD) in adults is Tagamet 800 mg twice daily or 400 mg four times daily for 12 weeks.

Tagamet Dosage for Pathological Hypersecretory Conditions

The typical dose of Tagamet healthcare providers recommend for pathological hypersecretory conditions (such as Zollinger-Ellison syndrome) is Tagamet 300 mg four times daily. If necessary, your healthcare provider may increase your dose up to a total of Tagamet 2400 mg per day.

Nonprescription Dose

For adults and children 12 and over, Tagamet HB 200 mg can be used to prevent heartburn or indigestion when taken right before a meal (or up to 30 minutes before a meal). Tagamet HB can also help relieve symptoms once they occur. Do not take more than two Tagamet HB tablets in a 24-hour period.

General Information on Taking Tagamet

Some considerations for people taking Tagamet include the following:
  • A liquid form of prescription Tagamet is available for people who have trouble swallowing tablets.
  • Ask your healthcare provider about how long you will need to take Tagamet. Some people only need to take Tagamet for a short period of time (a month or two).
  • You may take Tagamet with or without food.
  • If you take Tagamet on a daily basis, you should take it at the same time(s) each day to maintain an even level of the drug in your blood. If you take Tagamet just once a day, it is usually best to take it at bedtime.
  • For Tagamet to work properly, it must be taken as prescribed. Tagamet will not work if you stop taking it. However, many people need to take Tagamet only until their ulcer or esophagitis is healed.
  • People who have poor kidney function (including kidney failure or renal failure) need to take a lower dose of Tagamet. If you have kidney problems, ask your healthcare provider about which dose of Tagamet you should be taking.
  • If you are unsure about anything related to Tagamet or your Tagamet dosage, please talk to your doctor, nurse, or pharmacist.

Tagamet Drug Information

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