Nazitidine

Mechanism of Action:

Nizatidine is a competitive, reversible inhibitor of histamine at the histamine H2-receptors, particularly those in the gastric parietal cells.

Drug Label Information | Brands:

Nizatidine is a histamine H2 receptor antagonist that inhibits stomach acid production, and is commonly used in the treatment of peptic ulcer disease and gastroesophageal reflux disease.
Nizatidine was developed by Eli Lilly, and was first marketed in 1987. It is considered to be equipotent with ranitidine and differs by the substitution of a thiazole ring in place of the furan ring in ranitidine. In September 2000, Eli Lilly announced they would sell the sales and marketing rights for Axid to Reliant Pharmaceuticals.
Subsequently, Reliant developed the oral solution of Axid, marketing this in 2004, after gaining approval from the U.S. Food and Drug Administration (FDA)

INDICATIONS

Nizatidine is used to treat duodenal ulcers, gastric ulcers, and gastroesophageal reflux disease (GERD/GORD), and to prevent stress ulcers

CONTRAINDICATIONS

Nizatidine capsules are contraindicated in patients with known hypersensitivity to the drug. Because cross sensitivity in this class of compounds has been observed, H2-receptor antagonists, including nizatidine, should not be administered to patients with a history of hypersensitivity to other H2-receptor antagonists.

ADVERSE DRUG REACTIONS

Hepatic
Hepatocellular injury, evidenced by elevated liver enzyme tests (SGOT [AST], SGPT [ALT], or alkaline phosphatase), occurred in some patients and was possibly or probably related to nizatidine

Cardiovascular
In clinical pharmacology studies, short episodes of asymptomatic ventricular tachycardia occurred in 2 individuals administered nizatidine and in 3 untreated subjects.

CNS
Rare cases of reversible mental confusion have been reported.

Endocrine
Clinical pharmacology studies and controlled clinical trials showed no evidence of antiandrogenic activity due to nizatidine.

Hematologic
Anemia was reported significantly more frequently in nizatidine- than in placebo-treated patients. Fatal thrombocytopenia was reported in a patient who was treated with nizatidine and another H2-receptor antagonist.

Integumental
Sweating and urticaria were reported significantly more frequently in nizatidine than in placebo-treated patients

Hypersensitivity
As with other H2-receptor antagonists, rare cases of anaphylaxis following administration of nizatidine have been reported.

Body as a Whole
Serum sickness-like reactions have occurred rarely in conjunction with nizatidine use.

Genitourinary
Reports of impotence have occurred.

Other
Hyperuricemia unassociated with gout or nephrolithiasis was reported. Eosinophilia, fever, and nausea related to nizatidine administration have been reported.