Phenothiazine
Brand names,
Phenothiazine
Analogs
Phenothiazine
Brand Names Mixture
Phenothiazine
Chemical_Formula
C17H20N2S
Phenothiazine
RX_link
No information avaliable
Phenothiazine
fda sheet
Phenothiazine
msds (material safety sheet)
Phenothiazine
Synthesis Reference
No information avaliable
Phenothiazine
Molecular Weight
284.42 g/mol
Phenothiazine
Melting Point
< 25 oC
Phenothiazine
H2O Solubility
14.2 mg/L
Phenothiazine
State
Liquid
Phenothiazine
LogP
4.893
Phenothiazine
Dosage Forms
Tablet; Oral liquid; Injection
Phenothiazine
Indication
Used as an adjunct for short term treatment of moderate and severe psychomotor agitation. Also used to treat agitation or restlessness in the elderly.
Phenothiazine
Pharmacology
Promazine belongs to a group of medications known as the phenothiazine antipsychotics. It acts by blocking a variety of receptors in the brain, particularly dopamine receptors. Dopamine is involved in transmitting signals between brain cells. When there is an excess amount of dopamine in the brain it causes over-stimulation of dopamine receptors. These receptors normally act to modify behaviour and over-stimulation may result in psychotic illness. Promazine hydrochloride blocks these receptors and stops them becoming over-stimulated, thereby helping to control psychotic illness. Promazine has weak extrapyramidal and autonomic side effects which lead to its use in the elderly, for restless or psychotic patients. Its anti-psychotic effect is also weaker and it is not useful in general psychiatry.
Phenothiazine
Absorption
Absorption may be erratic and peak plasma concentrations show large interindividual differences.
Phenothiazine
side effects and Toxicity
Side effects include: extrapyramidal symptoms, drowsiness, weight gain, dry mouth, constipation, endocrine effects (such as gynaecomastia and menstrual disturbance), sensitivity to sunlight and haemolytic anaemia.
Phenothiazine
Patient Information
No information avaliable
Phenothiazine
Organisms Affected
Humans and other mammals