Trazodone → Side Effects by befurther ..... Conspiracy Forum
Date: 9/20/2013 3:34:29 AM ( 12 y ago)
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Applies to trazodone: oral tablet, oral tablet extended release
Along with its needed effects, trazodone may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking trazodone:
More common
Less common
Rare
Get emergency help immediately if any of the following symptoms of overdose occur while taking trazodone:
Symptoms of overdose
Some side effects of trazodone may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
Less common
Applies to trazodone: compounding powder, oral tablet, oral tablet extended release
Nervous system
Nervous system side effects are common and include drowsiness and sedation in as many as 50% of treated patients. Dizziness (10% to 30%), sleep abnormalities, headache, fatigue and, more rarely, seizures, dystonia, akathisia, myoclonus, palinopsia (persistence or reappearance of an image of a recently viewed object), and extrapyramidal symptoms have been reported. One case of serotonin syndrome has been reported which is believed to have been precipitated by the combination of venlafaxine and trazodone.
Nearly all selective serotonin reuptake inhibitors, mixed serotonin/norepinephrine reuptake inhibitors, and tricyclic antidepressants cause sleep abnormalities to some extent. These antidepressants have marked dose-dependent effects on rapid eye movement (REM) sleep, causing reductions in the overall amount of REM sleep over the night and delays the first entry into REM sleep (increased REM sleep onset latency (ROL)), both in healthy subjects and depressed patients. The antidepressants that increase serotonin function appear to have the greatest effect on REM sleep. The reduction in REM sleep is greatest early in treatment, but gradually returns towards baseline during long-term therapy; however, ROL remains long. Following discontinuation of therapy the amount of REM sleep tends to rebound. Some of these drugs (i.e., bupropion, mirtazapine, nefazodone, trazodone, trimipramine) appear to have a modest or minimal effect on REM sleep.
Psychiatric
Psychiatric side effects have been reported and include mania, paranoia, hypomania (during and following therapy), increased libido, delirium, agitation, psychosis, hallucinations and self- destructive behavior.
Cardiovascular
Cardiovascular side effects including arrhythmias, hypotension, peripheral edema, postural hypotension, ventricular ectopy, ventricular tachycardia, torsades de pointes, rapid atrial fibrillation, heart block, and other conduction abnormalities have been reported.
Some investigators have suggested that trazodone exerts fewer adverse cardiovascular effects than many other antidepressants.
Genitourinary
Genitourinary side effects including priapism, clitoral priapism, ejaculatory inhibition, and anorgasmia have been reported.
Priapism has been rarely reported (0.01% to 0.1%). Priapism has occurred with doses of 50 to 150 mg daily and typically within the first 28 days of treatment. Approximately one-third of affected individuals have required surgical intervention. It has been suggested that trazodone's alpha-adrenergic blocking properties may contribute to the induction of priapism.
One case of spontaneous orgasms in an elderly postmenopausal woman has also been reported.
Other
Anticholinergic (and possibly alpha-adrenergic blocking) side effects have been reported, although much less frequently than with many other antidepressants. The effects reported include dry mouth, blurred vision, constipation, and urinary retention.
Hepatic
Hepatic side effects including cases of chronic active hepatitis and drug-induced hepatotoxicity have been reported rarely.
One case of severe hepatotoxicity followed a four day course of trazodone therapy.
Dermatologic
Dermatologic side effects including erythema multiforme, leukocytoclastic vasculitis, pustular psoriasis, drug eruptions, and acute peripheral edema have been reported rarely.
Hematologic
Hematologic side effects have included alterations in laboratory studies such as significant decreases in hematocrit, hemoglobin, red blood cell count, serum cholesterol, serum calcium, and serum albumin levels. Pseudoanemia (laboratory findings suggestive of anemia without pathologic significance) has been reported in 36% of treated patients.
Endocrine
Endocrine side effects have included hyperprolactinemia and hyponatremia (in association with the syndrome of inappropriate secretion of antidiuretic hormone).
Gastrointestinal
Gastrointestinal side effects have included dry mouth (up to 34%) and constipation.
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