Prometasin
Brand names,
Prometasin
Analogs
Prometasin
Brand Names Mixture
- Phenergan VC Expectorant Syrup (Phenylephrine hydrochloride + Potassium guaiacol sulphonate + Promethazine hydrochloride)
Prometasin
Chemical_Formula
C17H20N2S
Prometasin
RX_link
http://www.rxlist.com/cgi/generic3/phenergan.htm
Prometasin
fda sheet
Prometasin
msds (material safety sheet)
Prometasin
Synthesis Reference
Charpentier, U.S. Pat. 2,503,451 (1950)
Prometasin
Molecular Weight
284.42 g/mol
Prometasin
Melting Point
60oC
Prometasin
H2O Solubility
Freely soluble
Prometasin
State
Solid
Prometasin
LogP
4.946
Prometasin
Dosage Forms
Tablet; Suppository; Opthalmic drops; Syrup
Prometasin
Indication
For the treatment of allergic disorders, itching, nausea and vomiting.
Prometasin
Pharmacology
Promethazine, a phenothiazine, is an H1-antagonist with anticholinergic, sedative, and antiemetic effects and some local anesthetic properties. Promethazine is used as an antiemetic or to prevent motion sickness.
Prometasin
Absorption
On average, 88% of a promethazine dose is absorbed after oral administration; however, the absolute bioavailability is only 25% because of first-pass clearance.
Prometasin
side effects and Toxicity
Symptoms of overdose include mild depression of the central nervous system and cardiovascular system to profound hypotension, respiratory depression, unconsciousness, and sudden death. Other reported reactions include hyperreflexia, hypertonia, ataxia, athetosis, and extensor-plantar reflexes (Babinski reflex). LD50=55mg/kg (I.V. in mice)
Prometasin
Patient Information
Prometasin
Organisms Affected
Humans and other mammals