Blocacid
Brand names,
Blocacid
Analogs
Blocacid
Brand Names Mixture
Blocacid
Chemical_Formula
C8H15N7O2S3
Blocacid
RX_link
http://www.rxlist.com/cgi/generic/famot.htm
Blocacid
fda sheet
Blocacid
msds (material safety sheet)
Blocacid
Synthesis Reference
H. Yasufumi et al.; U.S. Pat. 4,283,408 (1981)
Blocacid
Molecular Weight
337.449 g/mol
Blocacid
Melting Point
163-164 oC
Blocacid
H2O Solubility
1.1 mg/mL
Blocacid
State
Solid
Blocacid
LogP
-0.726
Blocacid
Dosage Forms
Oral tablets; Rapid disintergrating tablets; Suspension; Injectable solution
Blocacid
Indication
For the treatment of peptic ulcer disease (PUD) and gastroesophageal reflux disease (GERD).
Blocacid
Pharmacology
Famotidine, a competitive histamine H2-receptor antagonist, is used to treat gastrointestinal disorders such as gastric or duodenal ulcer, gastroesophageal reflux disease, and pathological hypersecretory conditions. Famotidine inhibits many of the isoenzymes of the hepatic CYP450 enzyme system. Other actions of Famotidine include an increase in gastric bacterial flora such as nitrate-reducing organisms.
Blocacid
Absorption
The bioavailability of oral doses is 40-45%.
Blocacid
side effects and Toxicity
Intravenous, mouse: LD50 = 244.4mg/kg; Oral, mouse: LD50 = 4686 mg/kg. Symptoms of overdose include emesis, restlessness, pallor of mucous membranes or redness of mouth and ears, hypotension, tachycardia and collapse.
Blocacid
Patient Information
Famotidine is used to treat stomach and duodenal (upper small intestine) ulcers;
hypersecretory (increased acid secretion) conditions; heartburn and gastroesophageal
reflux disease (stomach contents bubbling into the esophagus causing pain). Notify your
physician if you are pregnant or nursing. Famotidine may be taken with or without food.
Shake the oral suspension vigorously for 5-10 seconds before taking. Unused oral
suspension should be discarded after 30 days. Notify your physician if you develop black,
tarry stools or coffee-ground vomit.
Blocacid
Organisms Affected
Humans and other mammals