Promethazin
Brand names,
Promethazin
Analogs
Promethazin
Brand Names Mixture
- Phenergan VC Expectorant Syrup (Phenylephrine hydrochloride + Potassium guaiacol sulphonate + Promethazine hydrochloride)
Promethazin
Chemical_Formula
C17H20N2S
Promethazin
RX_link
http://www.rxlist.com/cgi/generic3/phenergan.htm
Promethazin
fda sheet
Promethazin
msds (material safety sheet)
Promethazin
Synthesis Reference
Charpentier, U.S. Pat. 2,503,451 (1950)
Promethazin
Molecular Weight
284.42 g/mol
Promethazin
Melting Point
60oC
Promethazin
H2O Solubility
Freely soluble
Promethazin
State
Solid
Promethazin
LogP
4.946
Promethazin
Dosage Forms
Tablet; Suppository; Opthalmic drops; Syrup
Promethazin
Indication
For the treatment of allergic disorders, itching, nausea and vomiting.
Promethazin
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.
Promethazin
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.
Promethazin
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)
Promethazin
Patient Information
Promethazin
Organisms Affected
Humans and other mammals