Indications
Therapeutic Class
Pharmacology
Amitriptyline inhibits the membrane pump mechanism responsible for the re-uptake of transmitter amines, such as norepinephrine and serotonin, thereby increasing their concentration at the synaptic clefts of the brain Label, 10. These amines are important in regulating mood. The monoamine hypothesis in depression, one of the oldest hypotheses, postulates that deficiencies of serotonin (5-HT) and/or norepinephrine (NE) neurotransmission in the brain lead to depressive effects. This drug counteracts these mechanisms, and this may be the mechanism of amitriptyline in improving depressive symptoms.
Chlordiazepoxide binds to stereospecific benzodiazepine (BZD) binding sites on GABA (A) receptor complexes at several sites within the central nervous system, including the limbic system and reticular formation. This results in an increased binding of the inhibitory neurotransmitter GABA to the GABA(A) receptor. BZDs, therefore, enhance GABA-mediated chloride influx through GABA receptor channels, causing membrane hyperpolarization. The net neuro-inhibitory effects result in the observed sedative, hypnotic, anxiolytic, and muscle relaxant properties.
Dosage & Administration
Interaction
Contraindications
Side Effects
Pregnancy & Lactation
Precautions & Warnings
Use in Special Populations
Pediatric use: Safety profile is not established over pediatric population.
Geriatric use: This medicine are excreted by kidney and the risk of toxic reaction is grater in patient with impaired renal function, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range.
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