Amitriptyline drug data and news

Amitriptyline drug data, resources, and news articles (when available). Onconews.org provides news on cancer research. This section, which includes profiles on medicines that may or not be cancer-related is in beta form. If things run smoothly we will be releasing a new format late in the summer of 2006.

Generic name Amitriptyline
Brand Names/Synonyms Adepress; Adepril; Amineurin; Amitid; Amitril; Amitriprolidine; Amitriptylin; Amitriptyline; Amitriptyline Hcl; Amitriptyline Hydrochloride; Amitryptiline; Amitryptyline; Amytriptiline; Damilan; Damilen; Damitriptyline; Deprex; Dibenzosuberone/Amitriptyline; Domical; Elanil; Elavil; Endep; Flavyl; HSDB 3007; Hexathane; Horizon; Hydrochloride; Lantron; Laroxil; Laroxyl; Lentizol; MK 230; MK-230; Miketorin; N 750; Proheptadiene; Redomex; Saroten; Sarotex; Seroten; Sylvemid; Triptanol; Triptilin; Triptisol; Tryptanol; Tryptizol
Indication For the relief of symptoms of depression and Enuresis in children
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Description Not Available
Pharmacology Amitriptyline, a tertiary amine tricyclic antidepressant, is structurally related to both the skeletal muscle relaxant cyclobenzaprine and the thioxanthene antipsychotics such as thiothixene. Amitriptyline is used to treat depression, pain of neuropathic origin, attention-deficit hyperactivity disorder, functional enuresis in children, panic and phobic disorder, and to manage some eating disorders.
Mechanism Of Action Amitriptyline is metabolized to nortriptyline which acts by decreasing the reuptake of norepinephrine and serotonin (5-HT).
Amitriptyline News
(When available)

DOES CHRONIC FATIGUE SYNDROME REALLY EXIST?  Mar 4, 2006
...time they walk. Amitriptyline, an antidepressant, is often prescribed for its ability to restore normal sleep. Cognitive behavioral ... - Charlotte Sun-Herald,

Drugs found in body of 6-year-old girl DOLTON: Police say child's ...  Mar 2, 2006
DOLTON | Toxicology results show the January death of Kierra Garner, 6, was due to an overdose of the antidepressant amitriptyline, police said Thursday. ... - nwitimes.com,

Get help for your headaches  Mar 3, 2006
Higher doses can lead to analgesic rebound headaches. Prescription medications, such as amitriptyline, are sometimes needed. A. Absolutely. ... - Bolton Common,

Death of girl, 6, is ruled a murder  Mar 3, 2006
...report shows that a 6-year-old Dolton girl found dead in her home in January died of an overdose of an anti-depression medication called amitriptyline. ... - Chicago Tribune,

Girl died from antidepressant overdose  Mar 2, 2006
A toxicology report determined Kierra Garner, 6, died from intoxication of amitriptyline, and her death has been ruled a homicide, a Cook County medical ... - Chicago Tribune,

Girl Died Of Antidepressants Deliberately Given To Her  Mar 2, 2006
...toxicology report turned over to the Cook County medical examiner's office determined Kierra Garner died from intoxication of amitriptyline, an antidepressant ... - WBBM780,

Painful symptoms in depression: under-recognised and under-treated ...  Feb 28, 2006
Tricyclic antidepressants such as amitriptyline are effective, and probably more so than selective serotonin reuptake inhibitors (SSRIs), in the treatment of ... - British Journal of Psychiatry (subscription),

Study Finds Cymbalta® Was As Safe And Well-Tolerated As Routine ...  Feb 20, 2006
The most commonly used prescription pain medications for routine care included Neurontin® (gabapentin), Elavil® (amitriptyline) and Effexor-XR® (venlafaxine ... - Medical News Today (press release),

Dr. Cipriani and Colleagues Reply  Mar 2, 2006
A, Giedke H, Muller-Oerlinghausen B, Osterheider M, Rudolf GA, Sauer H, Tegeler J, Wetterling T: Comparative efficacy of lithium and amitriptyline in the ... - Am J Psychiatry (subscription)

Trimipramine for Refractory Panic Attacks  Mar 2, 2006
...to Mr. A, the medications tried to no avail (either were ineffective or were discontinued because of side effects) included amitriptyline, bupropion, amoxapine ... - Am J Psychiatry (subscription)

Antidepressants: Are they safe during pregnancy?  Feb 22, 2006
These older antidepressants — including amitriptyline and nortriptyline (Aventyl, Pamelor) — are generally discouraged during pregnancy in favor of newer ... - MayoClinic.com

Kids with headaches sleep poorly  Feb 20, 2006
...says. For example, the antidepressant amitriptyline can help with headaches and also cause drowsiness if taken near bedtime. However ... - Macleans,

Health Tip: Drugs to Avoid While Breast-Feeding  Feb 16, 2006
Antidepressant drugs: Amitriptyline, Amoxapine, Bupropion, Clomipramine, Desipramine, Dothiepin, Doxepin, Fluoxetine, Fluvoxamine, Imipramine, Nortriptyline ... - Forbes

Medical Edge: Many drug options for migraines  Feb 11, 2006
Antidepressants, especially tricyclics such as amitriptyline, which work by affecting the level of serotonin and other brain chemicals. ... - Bryan College Station Eagle,

From the analyst's couch: The IBS market  Feb 15, 2006
In addition, low-dose tricyclic antidepressants such as amitriptyline and desipramine have also found utility in treating a variety of IBS-related symptoms. ... - Nature.com (subscription),

Ministry Prosecutes over Medicines Act Breaches  Feb 8, 2006
...of the dangers of selling prescription medicines without a prescription, highlighted in court, were the sale of anti-depressant Amitriptyline, which if taken ... - Scoop.co.nz (press release),

Sham Acupuncture More Effective Than Sugar Pill in Easing Arm Pain  Feb 2, 2006
...or switched to real acupuncture whereas the other half either continued taking a placebo pill or switched to a pill containing 25 mg of amitriptyline. ... - MedPage Today,

Study: Antidepressants pose risks for newborns  09 Feb 2006
These include tricyclics such as amitriptyline sold as Elavil, bupropion sold as Wellbutrin, venlafaxine sold as Effexor and trazodone sold as Desyrel. ... - San Diego Union Tribune,

Ministry Prosecutes over Medicines Act Breaches  09 Feb 2006
...of the dangers of selling prescription medicines without a prescription, highlighted in court, were the sale of anti-depressant Amitriptyline, which if taken ... - Scoop.co.nz (press release),

Sham Acupuncture More Effective Than Sugar Pill in Easing Arm Pain  Feb 2, 2006
...or switched to real acupuncture whereas the other half either continued taking a placebo pill or switched to a pill containing 25 mg of amitriptyline. ... - MedPage Today,

Forum: Sense About Science report  Jan 27, 2006
34 Wheatley D. LI 160, an extract of St. John's wort, versus amitriptyline, in mildly to moderately depressed outpatients-a controlled 6 week clinical trial. ... - NutraIngredients.com,

Ventricular fibrillation can kill within minutes  Jan 23, 2006
I am taking amitriptyline. ... The one you mentioned — amitriptyline, an anti-depressant — is given to provide people with restorative sleep. ... - Columbus Dispatch,

Ventricular fibrillation is a major cause of sudden death  Jan 23, 2006
I think I have taken every medicine there is for it. None works too well for me. Currently I am taking amitriptyline. Is there anything new for me to try? ... - SouthCoastToday.com,

Brief Reports: Patterns of Psychotropic Medication Use by Race ...  Jan 25, 2006
Tricyclics included ami-triptyline, amitriptyline pamoate, clomi-pramine, desipramine, doxepin, imipramine, nortriptyline, protriptyline, trimipramine, and ... - Psychiatric Services (subscription)

Getting help for your headaches ... and your life  Jan 18, 2006
Higher doses can lead to analgesic rebound headaches. Prescription medications, such as amitriptyline, are sometimes needed. A. Absolutely. ... - Tewksbury Advocate,

Headache History  Jan 16, 2006
And General Grant might have waited just as long for the tricyclic antidepressants such as amitriptyline that are used to treat tension-type headaches today. ... - Saturday Evening Post,

Managing migraine with drugs, lifestyle changes  Jan 10, 2006
Most effective are the tricyclics such as amitriptyline, which work by affecting the level of serotonin and other brain chemicals. ... - NorthJersey.com,

Your Health … Can’t seem to get your zzz’s? Stop suffering ...  Jan 9, 2006
...they cause drowsiness. These medications include Desyrel (trazadone), Elavil (amitriptyline), and Sinequan (doxepin). Often they ... - Valley City Times Record,

James Le Fanu celebrates an unlikely panacea  Dec 6, 2005
Medicine may not deal in panaceas but their nearest approximation is a drug called amitriptyline, whose singular virtue is that it so often works when ... - Telegraph.co.uk,

Most Tolerable Antidepressant May Not be Most Efficacious  Dec 8, 2005
Prozac was better tolerated than any other antidepressant, most notably Elavil or Endep (amitriptyline) OR=0.64; 95% CI=0.47-0.85 and Tofranil (imipramine) OR ... - MedPage Today,

Is my high-powered new job making my migraine worse?  Dec 8, 2005
Other prophylactic drugs are amitriptyline — a tricyclic antidepressant, given in small doses — and the 5HT antagonist pizotifen, given at night. ... - Times Online,

Prozac: Popular, but not potent?  Dec 7, 2005
Patients found fluoxetine more tolerable than both Elavil and Endep (amitriptyline) and Tofranil (imipramine). "Fluoxetine, the ... - myDNA.com,

Experts say Prozac might not be the most effective antidepressant  Dec 8, 2005
...at the University of Verona in Italy, said in an e-mail, "Fluoxetine, the most widely studied SSRI, has progressively replaced amitriptyline and imipramine as ... - Dominican Today,

Prozac: Popular, but not potent?  Dec 7, 2005
..."Fluoxetine, the most widely studied SSRI, has progressively replaced amitriptyline and imipramine as the standard of comparison for newer medications. ... - myDNA.com,

Avoiding migraine trigger is just part of solution  Dec 4, 2005
Most effective are the tricyclics, such as amitriptyline, which work by affecting the level of serotonin and other brain chemicals. ... - Chicago Tribune,

Practical Geriatrics: Depression, Cognition, and Anxiety Among ...  Nov 8, 2005
In an eight-week, multicenter, randomized clinical trial with 179 women with breast cancer and depression, both paroxetine and amitriptyline were associated ... - Psychiatric Services (subscription)

Evaluation of Reboxetine, a Noradrenergic Antidepressant, for the ...  Sep 23, 2005
...an increased effectiveness related to the blockade of both norepinephrine and 5-HT by treatment with a combination of fluoxetine and amitriptyline rather than ... - Psychosomatics (subscription)

Bomb blows away soldier's old life  Oct 9, 2005
He was prescribed medications to help manage his mood, such as Zoloft, amitriptyline and mirtazapine, as well as his pain, such as Imitrex, ibuprofen and ... - Milwaukee Journal Sentinel,

Antidepressants Should Be First Line Approach for Nerve Tissue ...  Sep 29, 2005
..."It is usual to start with an antidepressant like amitriptyline, and if this fails then try an anticonvulsant," says Phil Wiffen, a researcher at Churchill ... - eMaxHealth.com,

Fibromyalgia can be baffling condition  Sep 29, 2005
Gabapentin is a commonly prescribed medicine for this condition. Amitriptyline taken before going to bed might restore refreshing sleep. ... - The Republican,

Prevalence and Treatment of Depression in Parkinson’s Disease  Sep 24, 2005
...these receptors. The TCAs include the following: amitriptyline, nortriptyline, imipramine, desipramine, and doxepine. These medications ... - Journal of Neuropsychiatry (subscription)

F. Fregni , M. O’Connor and A. Pascual-Leone  Sep 30, 2005
Rumi, DO, Gattaz, WF, Rigonatti, SP, et al (2005) Transcranial magnetic stimulation accelerates the antidepressant effect of amitriptyline in severe depression ... - British Journal of Psychiatry (subscription),

What to do when you're lacking in taste  Sep 19, 2005
Some common medications that can cause taste abnormalities are captopril, spironolactone, amitriptyline, lithium, phenytoin and carbamazepine. ... - Newark Star Ledger,

Many meds don't mix with the sun  Sep 21, 2005
Antidepressants: Amitriptyline (Elavil), amoxapine (Asendin), bupropion (Wellbutrin), citalopram (Celexa), clomipramine (Anafranil), desipramine (Norpramin ... - Pioneer Press,

Fibromyalgia treatment imperfect  Sep 13, 2005
No single treatment provides a cure. Gabapentin is a commonly prescribed medicine for this condition. Amitriptyline might restore refreshing sleep. ... - Contra Costa Times,

Evaluation of Reboxetine, a Noradrenergic Antidepressant, for the ...  Sep 6, 2005
...an increased effectiveness related to the blockade of both norepinephrine and 5-HT by treatment with a combination of fluoxetine and amitriptyline rather than ... - Psychosomatics (subscription)

Botox for migraines  Sep 6, 2005
Common preventative treatments include antidepressants, beta-blockers and anticonvulsants. Medications include amitriptyline, propanolol and depakote. ... - News 8 Austin,

Stigma? What stigma?  Sep 6, 2005
The drug we bought first was Amitriptyline, a tricylic anti-depressant. We bought that drug because it is known to have distinct side-effects. ... - EHI Primary Care,

Study Shows Many Elders Take Inappropriate Meds  Sep 5, 2005
...dizziness in older patients. Another medication used for pain, amitriptyline, was also near the top of the list. Once again, sedation ... - Kansas City infoZine,

NEW SERIES: The Art of Medicine  Aug 23, 2005
Randomised controlled trial comparing problem solving treatment with amitriptyline and placebo for major depression in primary care. BMJ 1995; 310:441-45. ... - AustralianDoctor.com (subscription),

Prozac can calm the anxious dog  Aug 30, 2005
Fifteen years ago, she may also have received Amitriptyline, an antidepressant, which Dodman says has more side effects - like dry- mouth and lethargy - than ... - OCRegister (subscription),

Animal behavior  Aug 25, 2005
Fifteen years ago, she may also have received Amitriptyline, an antidepressant, which Dodman says has more side effects -- like dry-mouth and lethargy -- than ... - Albany Times Union,

HEALTH & FITNESS  Aug 16, 2005
Amitriptyline, an antidepressant, also blocks nerve impulses to and from the pelvis and may provide relief for both vaginal pain and interstitial cystitis pain ... - The Tribune,

Kissel's doctor to continue testimony  Aug 14, 2005
On October 30, another physician Desmond Fung, who testified last Thursday, prescribed her Stilnox, Amitriptyline and Lorivan, because of her ``very tenacious ... - The Standard,

Accused's pain 'not exaggerated'  Aug 15, 2005
Dytham said she had not been aware of Kissel's visits to a Dr Desmond Fung, who prescribed Lorivan, Stilnox and Amitriptyline, the other hypnotics and ... - The Standard,

Dosage Forms SYRUP; TABLET
Drug_Category Analgesics; Antidepressants; Norepinephrine-Reuptake Inhibitors; ATC:N06AA09
Absorption Rapidly and well absorbed after oral administration
Interactions -->Interactions for Amitriptyline:

Drugs Metabolized by P450 2D6 ¾ The biochemical activity of the drug metabolizing isozyme cytochrome P450 2D6 (debrisoquin hydroxylase) is reduced in a subset of the caucasian population (about 7-10% of caucasians are so called "poor metabolizers"); reliable estimates of the prevalence of reduced P450 2D6 isozyme activity among Asian, African and other populations are not yet available. Poor metabolizers have higher than expected plasma concentrations of tricyclic antidepressants (TCAs) when given usual doses. Depending on the fraction of drug metabolized by P450 2D6, the increase in plasma concentration may be small, or quite large (8-fold increase in plasma AUC of the TCA).

In addition, certain drugs inhibit the activity of this isozyme and make normal metabolizers resemble poor metabolizers. An individual who is stable on a given dose of TCA may become abruptly toxic when given one of these inhibiting drugs as concomitant therapy. The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). While all the selective serotonin reuptake inhibitors (SSRIs), e.g., fluoxetine, sertraline, and paroxetine, inhibit P450 2D6, they may vary in the extent of inhibition. The extent to which SSRI-TCA interactions may pose clinical problems will depend on the degree of inhibition and the pharmacokinetics of the SSRI involved. Nevertheless, caution is indicated in the coadministration of TCAs with any of the SSRIs and also in switching from one class to the other. Of particular importance, sufficient time must elapse before initiating TCA treatment in a patient being withdrawn from fluoxetine, given the long half-life of the parent and active metabolite (at least 5 weeks may be necessary).

Concomitant use of tricyclic antidepressants with drugs that can inhibit cytochrome P450 2D6 may require lower doses than usually prescribed for either the tricyclic antidepressant or the other drug. Furthermore, whenever one of these other drugs is withdrawn from co-therapy, an increased dose of tricyclic antidepressant may be required. It is desirable to monitor TCA plasma levels whenever a TCA is going to be coadministered with another drug known to be an inhibitor of P450 2D6.

Monoamine Oxidase Inhibitors: Guanethidine or similarly acting compounds; thyroid medication; alcohol, barbiturates and other CNS depressants; and disulfiram

When amitriptyline HCl is given with anticholinergic agents or sympathomimetic drugs, including epinephrine combined with local anesthetics, close supervision and careful adjustment of dosages are required.

Hyperpyrexia has been reported when amitriptyline HCl is administered with anticholinergic agents or with neuroleptic drugs, particularly during hot weather.

Paralytic ileus may occur in patients taking tricyclic antidepressants in combination with anticholinergic-type drugs.

Cimetidine is reported to reduce hepatic metabolism of certain tricyclic antidepressants, thereby delaying elimination and increasing steady-state concentrations of these drugs. Clinically significant effects have been reported with the tricyclic antidepressants when used concomitantly with cimetidine. Increases in plasma levels of tricyclic antidepressants, and in the frequency and severity of side effects, particularly anticholinergic, have been reported when cimetidine was added to the drug regimen. Discontinuation of cimetidine in well-controlled patients receiving tricyclic antidepressants and cimetidine may decrease the plasma levels and efficacy of the antidepressants.

Caution is advised if patients receive large doses of ethchlorvynol concurrently. Transient delirium has been reported in patients who were treated with one gram of ethchlorvynol and 75 - 150 mg of amitriptyline HCl.

Toxicity LD50=350 mg/kg (in mice)
Organisms Affected Humans and other mammals
Chemical IUPAC Name 3-(10,11-dihydro-5H-dibenzo-[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-1-propanamine
Chemical Formula C20H23N
Molecular Weight 277.403 g/mol
Smiles String CN(C)CCC=C1C2=CC=CC=C2CCC3=CC=CC=C31
Melting Point 196-197°C
Water Solubility 9.7 mg/mL
State White or almost white powder
LogP/Hphobicity 4.612
Isoelectric Point 9.4
Biotransformation Exclusively hepatic , with first_pass effect
Half Life 30 hours
Protein Binding [%] Very highly protein bound (90% or more) in plasma and tissues
RxList Link RXlist
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Drug Reference http://www.drugs.com/cons/Amitriptyline.html
http://www.rxlist.com/cgi/generic/amitrip.htm
Drug Type Approved Drug
Accession No APRD00227
CAS Registry Number 50-48-6
KEGG Compound ID C06824
PubChem ID SID:148552
PharmGKB ID PA448385
SwissProt ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] 654515

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