Tramadol Amitriptyline

One of the main side-effects of opioid analgesics, such as codeine and tramadol, is constipation. Amitriptyline (tricyclic antidepressant) and orphenadrine tend to have antimuscarinic properties, resulting in side-effects such as constipation. Senna is a stimulant laxative indicated in constipation. 

Amitriptyline (ElavU) Tramadol (Ultram, Ziconotide (Prialt)... 

Clinically important, potentially hazardous interactions with amitriptyline, amoxapine, amphetamines, bupropion, citalopram, clomipramine, cyproheptadine, desipramine, dextroamphetamine, dextromethorphan, diethylpropion, dopamine, doxepin, entacapone, ephedra, ephedrine, epinephrine, fluoxetine, fluvoxamine, ginseng, imipramine, levodopa, mazindol, meperidine, methamphetamine, nefazodone, nortriptyline, paroxetine, phendimetrazine, phentermine, phenylephrine, pizotifen, propoxyphene, protriptyline, pseudoephedrine, rizatriptan, sertraline, sibutramine, sumatriptan, sympathomimetics, tramadol, tricyclic antidepressants, trimipramine, tryptophan, venlafaxine, zolmitriptan... 

In general, the concurrent use of most opioids and tricyclics is uneventful, although lethargy, sedation, and respiratory depression have been reported. Tramadol should be used with caution with tricyclic antidepressants because of the possible risk of seizures and the serotonin syndrome. Dextroproposyphene may cause moderate rises in the serum levels of amitriptyline and nortriptyUne, and methadone may moderately raise desipramine levels. The bioavailability and the degree of analgesia of oral morphine is increased by clomipramine, desipramine and possibly amitriptyline. 

A small study in healthy subjects found no problems when moclobemide was given 24 hours after clomipramine. However, the serotonin syndrome occurred in 3 patients when clomipramine was replaced by mo-clobemide without a washout period or with only a 24-hour washout period, " and in another patient when moclobemide was replaced by clomipramine after only 12 hours. A fatal case of the serotonin syndrome occurred in a patient taking clomipramine and amitriptyline, with symptoms manifesting within 30 minutes of a 300-mg dose of moclobemide. Two other patients developed fatal serotonin syndrome after taking moderate overdoses of moclobemide and clomipramine. The serotonin syndrome has been reported in at least 8 other cases of moclobemide and clomipramine overdose, one of which also involved tramadol (see also MAOIs + Opioids Tramadol, p.ll41), another fluoxetine (see also MAOIs or RIMAs + SSRIs, p.l 142), and yet another buspirone (see also MAOIs or RIMAs + Buspirone, p.l 133). Conversely, a case of an overdose of moclobemide and clomipramine resulted in no adverse effects except sinus tachycardia. ... 

Know the mechanism of action of your muscle relaxant. If the patient is already taking tramadol or tapentadol as well as amitriptyline, consider your rationale for adding a third agent with serotonergic activity such as cyclobenzaprine, as well as the increased risk of serotonin syndrome. Do not use cyclobenzaprine within 2 weeks of the last dose of an MAOI. Some MAOIs include isocarboxazid (Marplan), tranylcypromine (Parnate), phenelzine (Nardil), selegiline (Eldepryl, Emsam),... 

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