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Imipramine Hcl Tablets Generic Name & Formulations
Legal Class
Rx
General Description
Imipramine HCl 10mg, 25mg, 50mg.
Pharmacological Class
Tricyclic.
See Also
How Supplied
Contact supplier
Manufacturer
Mechanism of Action
The exact mechanism of action is not known. However, it does not act primarily by stimulation of the central nervous system. The clinical effect is hypothesized as being due to potentiation of adrenergic synapses by blocking uptake of norepinephrine at nerve endings. Its mechanism of action in controlling childhood enuresis is thought to be apart from its antidepressant effect.
Imipramine Hcl Tablets Indications
Indications
Depression.
Imipramine Hcl Tablets Dosage and Administration
Adult
Outpatients: initially 75mg/day, may increase to 150mg/day; max 200mg/day. Maintenance: 50–150mg/day. Inpatients: initially 100mg/day, may increase to 200mg/day as needed; max 300mg/day. Adolescents or elderly: initially 30–40mg/day; max 100mg/day.
Children
Not established.
Imipramine Hcl Tablets Contraindications
Contraindications
During or within 14 days of MAOIs. Concomitant linezolid or IV methylene blue. Acute post-MI.
Imipramine Hcl Tablets Boxed Warnings
Boxed Warning
Suicidality and antidepressant drugs.
Imipramine Hcl Tablets Warnings/Precautions
Warnings/Precautions
Increased risk of suicidal thinking and behavior in children, adolescents, and young adults; monitor for clinical worsening or unusual changes. Monitor for emergence of serotonin syndrome; discontinue if occurs. Screen for bipolar disorder. Cardiovascular disease. Increased intraocular pressure. Urinary retention. Hyperthyroidism. Seizure disorder. Angle-closure glaucoma. Mania/hypomania. Psychosis. ECT. Diabetes. Renal or hepatic impairment. Perform leukocyte and blood counts if fever and sore throat develops. Discontinue prior to surgery or evidence of pathological neutrophil depression. Write ℞ for smallest amount feasible. Elderly. Pregnancy. Nursing mothers: not recommended.
Imipramine Hcl Tablets Pharmacokinetics
Elimination
Renal. Half-life: 12 hours.
Imipramine Hcl Tablets Interactions
Interactions
See Contraindications. Increased risk of serotonin syndrome with other serotonergic drugs (eg, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, St. John's Wort) or with drugs that impair serotonin metabolism (eg, MAOIs, linezolid, IV methylene blue). Potentiates alcohol, sympathomimetics (eg, epinephrine, norepinephrine), CNS depressants. Potentiated by methylphenidate, CYP2D6 inhibitors; monitor plasma levels with cimetidine, fluoxetine, quinidine, SSRIs, phenothiazines, type 1C antiarrhythmics (eg, propafenone, flecainide). Antagonized by barbiturates, phenytoin. Paralytic ileus with anticholinergics. Blocks guanethidine, clonidine. Possible cardiotoxicity with concomitant thyroid medications.
Imipramine Hcl Tablets Adverse Reactions
Adverse Reactions
Drowsiness, anticholinergic effects, CNS overstimulation, arrhythmias, extrapyramidal symptoms, hypo- or hypertension, nausea, fatigue, rash, increased perspiration, headache, changes in blood sugar, photosensitivity, edema, blood dyscrasias (discontinue if occurs), jaundice.
Imipramine Hcl Tablets Clinical Trials
See Literature
Imipramine Hcl Tablets Note
Notes
Formerly known under the brand name Tofranil.
Imipramine Hcl Tablets Patient Counseling
See Literature
Imipramine Hcl Tablets Generic Name & Formulations
Legal Class
Rx
General Description
Imipramine HCl 10mg, 25mg, 50mg.
Pharmacological Class
Anticholinergic.
See Also
How Supplied
Contact supplier
Manufacturer
Mechanism of Action
The exact mechanism of action is not known. However, it does not act primarily by stimulation of the central nervous system. The clinical effect is hypothesized as being due to potentiation of adrenergic synapses by blocking uptake of norepinephrine at nerve endings. Its mechanism of action in controlling childhood enuresis is thought to be apart from its antidepressant effect.
Imipramine Hcl Tablets Indications
Indications
Childhood enuresis.
Imipramine Hcl Tablets Dosage and Administration
Adult
Not applicable.
Children
<6yrs: not established. ≥6yrs: initially 25mg daily 1 hour before bedtime; after 1 week, increase to 50mg for children 6–12yrs, up to 75mg for those >12yrs. Early night bedwetters: give 25mg in afternoon and repeat at bedtime. Max 2.5mg/kg per day. Attempt drug-free periods after gradual tapering of dose if drug response favorable.
Imipramine Hcl Tablets Contraindications
Contraindications
During or within 14 days of MAOIs. Concomitant linezolid or IV methylene blue. Acute post-MI.
Imipramine Hcl Tablets Boxed Warnings
Boxed Warning
Suicidality and antidepressant drugs.
Imipramine Hcl Tablets Warnings/Precautions
Warnings/Precautions
Increased risk of suicidal thinking and behavior in children, adolescents, and young adults; monitor for clinical worsening or unusual changes. Monitor for emergence of serotonin syndrome; discontinue if occurs. Screen for bipolar disorder. Cardiovascular disease. Increased intraocular pressure. Urinary retention. Hyperthyroidism. Seizure disorder. Angle-closure glaucoma. Mania/hypomania. Psychosis. ECT. Diabetes. Renal or hepatic impairment. Perform leukocyte and blood counts if fever and sore throat develops. Discontinue prior to surgery or evidence of pathological neutrophil depression. Write ℞ for smallest amount feasible. Elderly. Pregnancy. Nursing mothers: not recommended.
Imipramine Hcl Tablets Pharmacokinetics
Elimination
Renal. Half-life: 12 hours.
Imipramine Hcl Tablets Interactions
Interactions
See Contraindications. Increased risk of serotonin syndrome with other serotonergic drugs (eg, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, St. John's Wort) or with drugs that impair serotonin metabolism (eg, MAOIs, linezolid, IV methylene blue). Potentiates alcohol, sympathomimetics (eg, epinephrine, norepinephrine), CNS depressants. Potentiated by methylphenidate, CYP2D6 inhibitors; monitor plasma levels with cimetidine, fluoxetine, quinidine, SSRIs, phenothiazines, type 1C antiarrhythmics (eg, propafenone, flecainide). Antagonized by barbiturates, phenytoin. Paralytic ileus with anticholinergics. Blocks guanethidine, clonidine. Possible cardiotoxicity with concomitant thyroid medications.
Imipramine Hcl Tablets Adverse Reactions
Adverse Reactions
Nervousness, sleep disorders, tiredness, GI disturbances, constipation, convulsions, anxiety, emotional instability, syncope, collapse, drowsiness, orthostatic hypotension, ECG changes, restlessness, insomnia, anticholinergic effects, CNS overstimulation, extrapyramidal symptoms, rash, headache, changes in blood sugar, photosensitivity, edema, bone marrow depression (discontinue if occurs), jaundice, urinary frequency.
Imipramine Hcl Tablets Clinical Trials
See Literature
Imipramine Hcl Tablets Note
Notes
Formerly known under the brand name Tofranil.
Imipramine Hcl Tablets Patient Counseling
See Literature
