Melfax
Category
Melfax Brand names, Melfax Analogs
Melfax Brand Names Mixture
Tritec (ranitidine bismuth citrate salt)
Melfax Chemical_Formula
C13H22N4O3S
Melfax RX_link
http://www.rxlist.com/cgi/generic2/ranitbc.htm
Melfax fda sheet
Melfax msds (material safety sheet)
Melfax Synthesis Reference
B. J. Price et al., U.S. Pat. 4,128,658 (1978)
Melfax Molecular Weight
314.405 g/mol
Melfax Melting Point
69-70 oC
Melfax H2O Solubility
24.7 mg/mL
Melfax State
Solid
Melfax LogP
1.93
Melfax Dosage Forms
Capsule; Liquid; Solution; Tablet; Syrup
Melfax Indication
Used in the treatment of peptic ulcer disease (PUD), dyspepsia, stress ulcer prophylaxis, and gastroesophageal reflux disease (GERD).
Melfax Pharmacology
Ranitidine is a histamine H2-receptor antagonist similar to cimetidine and famotidine. An H2-receptor antagonist, often shortened to H2 antagonist, is a drug used to block the action of histamine on parietal cells in the stomach, decreasing acid production by these cells. These drugs are used in the treatment of dyspepsia, however their use has waned since the advent of the more effective proton pump inhibitors. Like the H1-antihistamines, the H2 antagonists are inverse agonists rather than true receptor antagonists.
Melfax Absorption
Approximately 50% bioavailability orally.
Melfax Toxicity
LD50=77mg/kg (orally in mice). Symptoms of overdose include muscular tremors, vomiting, and rapid respiration.
Melfax Patient Information
PATIENT INFORMATION
Phenylketonurics: ZANTAC 25 EFFERdose Tablets contain phenylalanine 2.81 mg per 25 mg of ranitidine. ZANTAC 150 EFFERdose Tablets
contain phenylalanine 16.84 mg per 150 mg of ranitidine. ZANTAC EFFERdose Tablets should not be chewed, swallowed whole, or dissolved
on the tongue.
Melfax Organisms Affected
Humans and other mammals
