Amitriptyline hydrochloride tablet, film coated
Boxed warning section
Suicidality and Antidepressant Drugs:
Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of major depressive disorder (MDD) and other psychiatric disorders. Anyone considering the use of amitriptyline hydrochloride tablets or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction in risk with antidepressants compared to placebo in adults aged 65 and older. Depression and certain other psychiatric disorders are themselves associated with increases in the risk of suicide. Patients of all ages who are started on antidepressant therapy should be monitored appropriately and observed closely for clinical worsening, suicidality, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. Amitriptyline hydrochloride is not approved for use in pediatric patients. (See WARNINGS: Clinical Worsening and Suicide Risk, PRECAUTIONS: Information for Patients, and PRECAUTIONS: Pediatric Use)
Amitriptyline hydrochloride USP, a dibenzocycloheptadiene derivative, is a white, or practically white, odorless or practically odorless, crystalline powder or small crystals and freely soluble in water, alcohol, chloroform and methanol and insoluble in ether.
It is designated chemically as 10,11-Dihydro-N,N-dimethyl-5 H-dibenzo[a,d] cycloheptene- 5, -propylamine hydrochloride.
It has the following structural formula:
Each amitriptyline hydrochloride tablet, USP for oral administration contains 10 mg, 25 mg, 50 mg, 75 mg, 100 mg, or 150 mg amitriptyline hydrochloride, USP. Inactive ingredients are: croscarmellose sodium, colloidal silicon dioxide, hydroxypropyl methylcellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, pregelatinized starch (corn), talc, and titanium dioxide. Additionally,
25 mgtablets contain: D&C Yellow #10 Aluminum Lake and FD&C Blue #1 Aluminum Lake;
50 mgtablets contain: D&C Yellow #10 Aluminum Lake, iron oxide red and iron oxide yellow;
75 mgtablets contain: FD&C Blue #2 Aluminum Lake and iron oxide yellow;
100 mgtablets contain: D&C Red #27 Aluminum Lake and D&C Yellow #10 Aluminum Lake;
150 mgtablets contain: iron oxide red and iron oxide yellow.
Amitriptyline hydrochloride is an antidepressant with sedative effects. Its mechanism of action in man is not known. It is not a monoamine oxidase inhibitor and it does not act primarily by stimulation of the central nervous system.
Amitriptyline inhibits the membrane pump mechanism responsible for uptake of norepinephrine and serotonin in adrenergic and serotonergic neurons. Pharmacologically, this action may potentiate or prolong neuronal activity since reuptake of these biogenic amines is important physiologically in terminating transmitting activity. This interference with reuptake of norepinephrine and/or serotonin is believed by some to underlie the antidepressant activity of amitriptyline.
Indications and usage
For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.
Amitriptyline hydrochloride is contraindicated in patients who have shown prior hypersensitivity to it.
It should not be given concomitantly with monoamine oxidase inhibitors. Hyperpyretic crises, severe convulsions, and deaths have occurred in patients receiving tricyclic antidepressant and monoamine oxidase inhibiting drugs simultaneously. When it is desired to replace a monoamine oxidase inhibitor with amitriptyline hydrochloride, a minimum of 14 days should be allowed to elapse after the former is discontinued. Amitriptyline hydrochloride should then be initiated cautiously with gradual increase in dosage until optimum response is achieved.
Amitriptyline hydrochloride should not be given with cisapride due to the potential for increased QT interval and increased risk for arrhythmia.
This drug is not recommended for use during the acute recovery phase following myocardial infarction.
Amitriptyline is excreted into breast milk. In one report in which a patient received amitriptyline 100 mg/day while nursing her infant, levels of 83 to 141 ng/mL were detected in the mother's serum. Levels of 135 to 151 ng/mL were found in the breast milk, but no trace of the drug could be detected in the infant's serum.
Because of the potential for serious adverse reactions in nursing infants from amitriptyline, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Schizophrenic patients may develop increased symptoms of psychosis; patients with paranoid symptomatology may have an exaggeration of such symptoms. Depressed patients, particularly those with known manic-depressive illness, may experience a shift to mania or hypomania. In these circumstances the dose of amitriptyline may be reduced or a major tranquilizer such as perphenazine may be administered concurrently.
The possibility of suicide in depressed patients remains until significant remission occurs. Potentially suicidal patients should not have access to large quantities of this drug. Prescriptions should be written for the smallest amount feasible.
Concurrent administration of amitriptyline hydrochloride and electroshock therapy may increase the hazards associated with such therapy. Such treatment should be limited to patients for whom it is essential.
When possible, the drug should be discontinued several days before elective surgery.
Both elevation and lowering of blood sugar levels have been reported.
Amitriptyline hydrochloride should be used with caution in patients with impaired liver function.
Information for patients
Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with amitriptyline hydrochloride and should counsel them in its appropriate use. A patient Medication Guide about "Antidepressant Medicines, Depression and other Serious Mental Illnesses, and Suicidal Thoughts or Actions" is available for amitriptyline hydrochloride. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have. The complete text of the Medication Guide is reprinted at the end of this document.
Patients should be advised of the following issues and asked to alert their prescriber if these occur while taking amitriptyline hydrochloride.
Patients should be advised that taking amitriptyline hydrochloride can cause mild pupillary dilation, which in susceptible individuals, can lead to an episode of angle-closure glaucoma. Pre-existing glaucoma is almost always open-angle glaucoma because angle-closure glaucoma, when diagnosed, can be treated definitively with iridectomy. Open-angle glaucoma is not a risk factor for angle-closure glaucoma. Patients may wish to be examined to determine whether they are susceptible to angle closure, and have a prophylactic procedure (e.g., iridectomy), if they are susceptible.
Clinical experience has not identified differences in responses between elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic function, concomitant disease and other drug therapy in elderly patients.
Geriatric patients are particularly sensitive to the anticholinergic side effects of tricyclic antidepressants including amitriptyline hydrochloride. Peripheral anticholinergic effects include tachycardia, urinary retention, constipation, dry mouth, blurred vision, and exacerbation of narrow-angle glaucoma. Central nervous system anticholinergic effects include cognitive impairment, psychomotor slowing, confusion, sedation, and delirium. Elderly patients taking amitriptyline hydrochloride may be at increased risk for falls. Elderly patients should be started on low doses of amitriptyline hydrochloride and observed closely (see DOSAGE AND ADMINISTRATION ).
Within each category the following adverse reactions are listed in order of decreasing severity. Included in the listing are a few adverse reactions which have not been reported with this specific drug. However, pharmacological similarities among the tricyclic antidepressant drugs require that each of the reactions be considered when amitriptyline is administered.
Deaths may occur from overdosage with this class of drugs. Multiple drug ingestion (including alcohol) is common in deliberate tricyclic antidepressant overdose. As the management is complex and changing, it is recommended that the physician contact a poison control center for current information on treatment. Signs and symptoms of toxicity develop rapidly after tricyclic antidepressant overdose, therefore, hospital monitoring is required as soon as possible.
Dosage and administration
NDC: 50090-3985-0 100 TABLET, FILM COATED in a BOTTLE
NDC: 50090-3985-2 60 TABLET, FILM COATED in a BOTTLE
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Studies in man following oral administration of 14C-labeled drug indicated that amitriptyline is rapidly absorbed and metabolized. Radioactivity of the plasma was practically negligible, although significant amounts of radioactivity appeared in the urine by 4 to 6 hours and one-half to one-third of the drug was excreted within 24 hours.
Amitriptyline is metabolized by N-demethylation and bridge hydroxylation in man, rabbit, and rat. Virtually the entire dose is excreted as glucuronide or sulfate conjugate of metabolites, with little unchanged drug appearing in the urine. Other metabolic pathways may be involved.
Ayd, F.J., Jr.: Amitriptyline therapy for depressive reactions, Psychosom. 1:320-325, Nov.-Dec. 1960.
Diamond, S.: Human metabolization of amitriptyline tagged with carbon 14, Curr. Therap. Res. 7:170-175, Mar. 1965.
Dorfman, W.: Clinical experiences with amitriptyline (A preliminary report), Psychosom. 1:153-155, May-June 1960.
Fallette, J.M.; Stasney, C.R.; Mintz, A.A.: Amitriptyline poisoning treated with physostigmine, S. Med. J. 63:1,492-1,493, Dec. 1970 (in Soc. Proc.).
Hollister, L.E.; Overall, J.E.; Johnson, M.; Pennington, V.; Katz, G.; Shelton, J.: Controlled comparison of amitriptyline, imipramine and placebo in hospitalized depressed patients, J.
Nerv. and Ment. Dis. 139:370-375, Oct. 1964.
Hordern, A.; Burt, C.G.; Holt, N.F.: Depressive states. A pharmacotherapeutic study, Springfield, Ill., Charles C. Thomas, 1965.
Jenike, M.A.: Treatment of Affective Illness in the Elderly with Drugs and Electroconvulsive Therapy, J. Geriatr. Psychiatry 1989;22(1).77-112.
Klerman, G.L.; Cole, J.O.: Clinical pharmacology of imipramine and related antidepressant compounds, Int. J. Psychiat. 3:267-304, Apr. 1976.
Liu, B.; Anderson, C.; Mittman, N. et al: Use of selective serotonin-reuptake inhibitors or tricyclic antidepressants and risk of hip fractures in elderly people. Lancet 1998; 351 (91
McConaghy, N.; Joffe, A.D.; Kingston, W.R.; Stevenson, H.G.; Atkinson, I.; Cole, E.; Fennessy, L.A.; Correlation of clinical features of depressed outpatients with response to amitriptyline
and protriptyline, Brit. J. Psychiat. 114:103-106, Jan. 1968.
McDonald, I.M.; Perkins, M.; Marjerrison, G.; Podilsky, M.: A controlled comparison of amitriptyline and electroconvulsive therapy in the treatment of depression, Amer. J. Psychiat. 122:1,427-1,431. June 1966 (in Brief Communications).
Slovis, T.; Ott, J.; Teitelbaum, D.; Lipscomb, W.: Physostigmine therapy in acute tricyclic antidepressant poisoning, Clin. Toxicol. 4:451-459, Sept. 1971.
Symposium on depression with special studies of a new antidepressant, amitriptyline, Dis. Nerv. Syst. 22:5-56, May 1961 (Sect. 2).
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Cadila Healthcare Ltd.,
Matoda, Ahmedabad, India.
Zydus Pharmaceuticals (USA) Inc.
Pennington, NJ 08534
Spl medguide section
Amitriptyline Hydrochloride Tablets, USP
(am'' i trip' tileen hye'' droe klor' ide)
Antidepressant Medicines, Depression and other Serious Mental Illnesses, and Suicidal Thoughts or Actions
Read the Medication Guide that comes with you or your family member's antidepressant medicine. This Medication Guide is only about the risk of suicidal thoughts and actions with antidepressant medicines. Talk to your, or your family member's, healthcare provider about:
- all risks and benefits of treatment with antidepressant medicines
- all treatment choices for depression or other serious mental illness
What is the most important information I should know about antidepressant medicines, depression and other serious mental illnesses, and suicidal thoughts or actions?
- Antidepressant medicines may increase suicidal thoughts or actions in some children, teenagers, and young adults within the first few months of treatment.
- Depression and other serious mental illnesses are the most important causes of suicidal thoughts and actions. Some people may have a particularly high risk of having suicidal thoughts or actions.These include people who have (or have a family history of) bipolar illness (also called manic-depressive illness) or suicidal thoughts or actions.
- How can I watch for and try to prevent suicidal thoughts and actions in myself or a family member?
- Pay close attention to any changes, especially sudden changes in mood, behaviors, thoughts, or feelings. This is very important when an antidepressant medicine is started or when the dose is changed.
- Call the healthcare provider right away to report new or sudden changes in mood, behavior, thoughts, or feelings.
- Keep all follow-up visits with the healthcare provider as scheduled. Call the healthcare provider between visits as needed, especially if you have concerns about symptoms.
Call a healthcare provider right away if you or your family member has any of the following symptoms, especially if they are new, worse, or worry you:
- thoughts about suicide or dying
- attempts to commit suicide
- new or worse depression
- new or worse anxiety
- feeling very agitated or restless
- panic attacks
- trouble sleeping (insomnia)
- new or worse irritability
- acting aggressive, being angry, or violent
- acting on dangerous impulses
- an extreme increase in activity and talking (mania)
- other unusual changes in behavior or mood
- Visual problems:eye pain, changes in vision, swelling or redness in or around the eye
What else do I need to know about antidepressant medicines?
- Never stop an antidepressant medicine without first talking to a healthcare provider.Stopping an antidepressant medicine suddenly can cause other symptoms.
- Visual problems:Only some people are at risk for these problems. You may want to undergo an eye examination to see if you are at risk and receive preventative treatment if you are.
- Antidepressants are medicines used to treat depression and other illnesses.It is important to discuss all the risks of treating depression and also the risks of not treating it. Patients and their families or other caregivers should discuss all treatment choices with the healthcare provider, not just the use of antidepressants.
- Antidepressant medicines have other side effects.Talk to the healthcare provider about the side effects of the medicine prescribed for you or your family member.
- Antidepressant medicines can interact with other medicines.Know all of the medicines that you or your family member takes. Keep a list of all medicines to show the healthcare provider. Do not start new medicines without first checking with your healthcare provider.
- Not all antidepressant medicines prescribed for children are FDA approved for use in children.Talk to your child's healthcare provider for more information.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Please address medical inquiries to, (MedicalAffairs@zydususa.com) Tel.: 1-877-993-8779 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
This Medication Guide has been approved by the U.S. Food and Drug Administration for all antidepressants.
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Cadila Healthcare Ltd.,
Matoda, Ahmedabad, India.
Zydus Pharmaceuticals (USA) Inc.
Pennington, NJ 08534
Ingredients and appearance - Product information
Amitriptyline hydrochloride tablet, film coated- Amitriptyline hydrochloride
|Product Type||HUMAN PRESCRIPTION DRUG LABEL||Item Code (Source)||NDC: 50090-3985|
|Route of Administration||Oral|
|Amitriptyline hydrochloride ( UNII: 26LUD4JO9K)( Amitriptyline - UNII: 1806D8D52K )||100 mgin 1|
|Microcrystalline cellulose||( UNII: OP1R32D61U)|
|Croscarmellose sodium||( UNII: M28OL1HH48)|
|D&c red no. 27||( UNII: 2LRS185U6K)|
|D&c yellow no. 10||( UNII: 35SW5USQ3G)|
|Hypromellose 2910 (6 mpa.s)||( UNII: 0WZ8WG20P6)|
|Lactose monohydrate||( UNII: EWQ57Q8I5X)|
|Magnesium stearate||( UNII: 70097M6I30)|
|Polyethylene glycol 8000||( UNII: Q662QK8M3B)|
|Silicon dioxide||( UNII: ETJ7Z6XBU4)|
|Starch, corn||( UNII: O8232NY3SJ)|
|Talc||( UNII: 7SEV7J4R1U)|
|Titanium dioxide||( UNII: 15FIX9V2JP)|
|Color||ORANGE (ORANGE)||Shape||ROUND (ROUND)|
|#||Item Code||Package Description||Marketing Start Date|
|1||NDC: 50090-3985-0||100 in 1 BOTTLE||2018/12/17|
|2||NDC: 50090-3985-2||60 in 1 BOTTLE||2018/12/17|
|Marketing Category||Application Number or Monograph Citation||Territorial Authority||Marketing Start Date|
Labeler - A-S Medication Solutions( 830016429)
|A-S Medication Solutions||830016429||RELABEL( 50090-3985)|