Indications & Dose:
Depressive illness
Adult: Initially 50 mg daily, then increased in steps of 50 mg at intervals of at least 1 week if required; maintenance 50 mg daily; maximum 200 mg per day
Obsessive-compulsive disorder
Adult: Initially 50 mg daily, then increased in steps of 50 mg at intervals of at least 1 week if required; maximum 200 mg per day
Panic disorder | Post-traumatic stress disorder Social anxiety disorder
Adult: Initially 25 mg daily for 1 week, then increased to 50 mg daily, then increased in steps of 50 mg at intervals of at least 1 week if required, increase only if response is partial and if drug is tolerated; maximum 200 mg per day
Contraindications:
Side Effects:
Cautions:
Precautions:
Weight loss, hepatic or renal disease, epilepsy.
Interaction:
Drugs
Carbamazepine: Inhibition of hepatic metabolism of carbamazepine, but the formation of carbamazepine epoxide is not inhibited, contributing to increased toxicity
Cyproheptadine: Serotonin antagonist may partially reverse antidepressant and other effects
Dexfenfluramine: Duplicate effects on inhibition of serotonin reuptake; inhibition of dexfenfluramine metabolism (CYP2D6) exaggerates effect; both mechanisms increase risk of serotonin syndrome
Fenfluramine: Duplicate effects on inhibition of serotonin reuptake; inhibition of dexfenfluramine metabolism (CYP2D6) exaggerates effect; both mechanisms increase risk of serotonin syndrome Lithium: Neurotoxicity (tremor, confusion, ataxia, dizziness, dysarthria,and absence seizures) reported in patients receiving fluoxetinelithium combination; mechanism unknown
MAOI’s (isocarboxazid. phenelzine, tranyleypromine): Increased CNS serotonergic effects has been associated with severe or fatal reactions with this combination
Selegiline: Sporadic cases of mania and hypertension
Tricyclic antidepressants (clomipramine, desipramine, doxepin, imipramine. nortripqline, trazadone): Marked increases in tricyclic antidepressant levels due to inhibition of metabolism (CYP2D6)
Tryptaphan: Additive serotonergic effects
Warfarin: Increased hypoprothrombinemic response to warfarin
Warnings:
Adverse Effects:
Lactations:
Special Precautions:
Counselling:
Side Effects Or Adverse Reactions:
CNS: Agitation, ataxia, confusion, dizziness, fatigue, headache, insomnia, paresthesia, somnolence, tremor, twitching
CV: Chest pain, hypotension, palpitations
EENT: Vision abnormalities
GU: Male sexual dysfunction, micturition disorder
GI: Anorexia, constipation, diarrhea, dry mouth, dyspepsia, flatulence. nausea, vomiting
Patient And Carer Advice:
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