Famotidine is a medication used to treat and prevent ulcers in the stomach and intestines. It is also prescribed to treat gastroesophageal reflux disease (GERD) and conditions where the stomach produces too much acid, such as Zollinger-Ellison syndrome [1].
How does famotidine work?
Famotidine belongs to a class of drugs called histamine H2-receptor antagonists. It works by reducing the amount of acid produced by the stomach [1]. By decreasing stomach acid, famotidine helps to heal existing ulcers and prevent new ones from forming. It also alleviates symptoms associated with GERD, like heartburn [2].
What are the different forms of famotidine?
Famotidine is available in several forms, including oral tablets, oral suspension, and an injectable solution. It is also available over-the-counter and by prescription [1].
How long does it take for famotidine to start working?
Oral formulations of famotidine typically begin to reduce stomach acid within an hour of administration. The effects can last for up to 12 hours [2].
Are there alternatives to famotidine?
Other medications used to reduce stomach acid include proton pump inhibitors (PPIs) like omeprazole and lansoprazole, as well as other H2-receptor antagonists such as ranitidine and cimetidine. The choice of medication often depends on the specific condition being treated and individual patient factors [3].
What are the potential side effects of famotidine?
Common side effects of famotidine can include headache, dizziness, constipation, and diarrhea. Less common side effects may involve fatigue or dry mouth. Serious side effects are rare but can include irregular heartbeat or signs of an allergic reaction [1].
What is the patent status of famotidine?
Famotidine is an older medication, and its original patents have long expired. This means that generic versions are widely available [4]. DrugPatentWatch.com tracks patent information for a vast array of pharmaceuticals, including historical patent data for drugs like famotidine [4].