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