Tagamet HB 200

cimetidine

By GlaxoSmithKline

What is this medication for?

Cimetidine is used to reduce the pain of ulcer and heartburn or to assist in the healing of ulcers and damage caused by gastroesophageal reflux disease (GERD). Cimetidine is also used to prevent ulcers in certain circumstances and to treat certain conditions that are associated with over-secretion of acid by the stomach (i.e., Zollinger-Ellison Syndrome, systemic mastocytosis, and multiple endocrine adenomas). The medication works by reducing the amount of acid secreted by the stomach.

Your doctor may have suggested this medication for conditions other than those listed here. As well, some forms of this medication may not be used for all of the conditions discussed here. If you are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

What form(s) does this medication come in?

Tagamet HB 200® is no longer being manufactured for sale in the USA.

Some medications may have other generic brands available. Always ask your doctor or pharmacist about the safety of switching between brands of the same medication.

How should I use this medication?

Adults: The adult dose of cimetidine ranges from 200 mg once daily to 600 mg 4 times a day, depending on the condition being treated. Doses may be taken before meals or at bedtime. The maximum recommended dose of cimetidine is 2,400 mg daily.

Children: The recommended dose to prevent or relieve heart burn sytmptoms for children above 12 years of age is 200 mg once daily. The maximum recommended dose of cimetidine is 400 mg daily.

Cimetidine can be taken with or without food.

It is important that this medication be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.

Who should NOT take this medication?

Do not take cimetidine if you:

  • are allergic to cimetidine or any of the ingredients of this medication
  • are allergic to other acid-reducing agents known as H2-receptor antagonists (famotidine, ranitidine, and nizatidine)
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Reviewer: Sharon Yeh
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