tramadol and effexor
The authors state that it is possible that the anasarca was due to an allergic or delayed- type hypersensitivity reaction given the circumstances.
There are numerous case reports of withdrawal symptoms following abrupt discontinuation of treatment, and a single case report of severe tinnitus associated with venlafaxine.
Withdrawal effects occur upon abrupt discontinuation of treatment and the severity of symptoms appears to be dependent on length of therapy and dose (including low dose therapy). In a flexible-dose study, with doses in the range of 200 to 375 mg/day and mean dose greater than 300 mg/day, the mean tramadol and effexor was increased by about 2 beats per minute compared with tramadol and effexor decrease of about 1 beat per minute for placebo.
In controlled clinical trials, Effexor was associated with mean increases in diastolic blood pressure ranging from 0.7 to 2.5 mm Hg averaged over all dose tramadol and effexor compared to mean decreases ranging from tramadol and effexor to 3.8 mm Hg for placebo. Experience with the immediate-release tramadol and effexor showed that sustained hypertension was dose-related, increasing from 3% to 7% at 100 to 300 mg/day to 13% at doses above 300 mg/day. Although these events occurred during treatment with venlafaxine, causality has not been determined.
One case of anasarca was reported in a patient receiving venlafaxine. Although these events occurred during treatment with venlafaxine, causality has not been determined.
There have been postmarketing reports of angioedema.
Genitourinary
One case of unexpected orgasm and subsequent ejaculation with no erection as well as orgasmic episodes with no ejaculation or erection has also been tramadol and effexor Although these events occurred during treatment with venlafaxine, causality has tramadol and effexor been determined.
Although rare, interstitial pneumonitis secondary to venlafaxine therapy has been reported. Experience with the immediate-release venlafaxine showed that sustained hypertension was dose-related, increasing from 3% to 7% at 100 to 300 mg/day to 13% tramadol and effexor doses above 300 mg/day. Risk factors for the development of SSRI- associated hyponatremia including advanced age, female gender, concomitant use of diuretics, low body weight, and lower baseline serum sodium levels have been identified. Tests for potential dose relationships for these events (Cochran-Armitage Test, with a criterion of exact 2-sided p-value ≤ 0.05) suggested a dose-dependency for several adverse events in this list, including chills, hypertension, anorexia, nausea, agitation, dizziness, somnolence, tremor, yawning, sweating, and abnormal ejaculation.
TABLE 3 Treatment-Emergent Adverse Experience Incidence in a Dose Comparison Trial
Effexor (mg/day)
Body System/ Preferred tramadol and effexor (n=92)
75 (n=89)
225 (n=89)
375 (n=88)
Body as a Whole
Abdominal pain
3.3%
3.4%
2.2%
8.0%
Asthenia
3.3%
16.9%
14.6%
14.8%
Chills
1.1%
2.2%
5.6%
6.8%
Infection
2.2%
2.2%
5.6%
2.3%
Cardiovascular System
Hypertension
1.1%
1.1%
2.2%
4.5%
Vasodilatation
0.0%
4.5%
5.6%
2.3%
Digestive System
Anorexia
2.2%
14.6%
13.5%
17.0%
Dyspepsia
2.2%
6.7%
6.7%
4.5%
Nausea
14.1%
32.6%
38.2%
58.0%
Vomiting
1.1%
7.9%
3.4%
6.8%
Nervous System
Agitation
0.0%
1.1%
2.2%
4.5%
Anxiety
4.3%
11.2%
4.5%
2.3%
Dizziness
4.3%
19.1%
22.5%
23.9%
Insomnia
9.8%
22.5%
20.2%
13.6%
Libido decreased
1.1%
2.2%
1.1%
5.7%
Nervousness
4.3%
21.3%
13.5%
12.5%
Somnolence
4.3%
16.9%
18.0%
26.1%
Tremor
0.0%
1.1%
2.2%
10.2%
Respiratory System
Yawn
0.0%
4.5%
5.6%
8.0%
Skin and Appendages
Sweating
5.4%
6.7%
12.4%
19.3%
Special Senses
Abnormality of accommodation
0.0%
9.1%
7.9%
5.6%
Urogenital System
Abnormal ejaculation/orgasm
0.0%
4.5%
2.2%
12.5%
Impotence
0.0%
5.8%
2.1%
3.6%
(Number of men)
(n=63)
(n=52)
(n=48)
(n=56)
Adaptation to Certain Adverse Events
Over a 6-week period, there was evidence of adaptation to some adverse events with continued therapy (eg, dizziness and nausea), but less to other effects (eg, abnormal ejaculation and dry mouth).
Vital Sign Changes
Effexor (venlafaxine hydrochloride) treatment (averaged over all dose groups) in clinical trials was associated with a mean increase in pulse rate of approximately 3 beats per minute, compared to no change for placebo. All reported events are included except those already listed in Table 2 and those events for which a drug cause was remote. Withdrawal symptoms were reported to include brief bursts of dizziness associated with headache, anxiety, irritability, agitation, insomnia, paresthesias, nausea, vomiting, diarrhea, tremor, fatigue, sweating, and worsening of depression tramadol and effexor to symptoms reported after withdrawal from selective serotonin reuptake inhibitors). Following discontinuation of therapy the amount of REM sleep tends to rebound. In premarketing trials, treatment with Effexor tablets was associated with a mean final on-therapy increase in total cholesterol of 3 mg/dL.
Patients treated with Effexor tablets for at least 3 months in placebo-controlled 12-month extension trials had a mean final on-therapy increase in total cholesterol of 9.1 mg/dL tramadol and effexor with tramadol and effexor decrease of 7.1 mg/dL among placebo-treated patients. Although these events occurred during treatment with venlafaxine, causality has not been determined.
A case of dose-related increase of intraocular pressure caused by venlafaxine use has been reported.
Metabolic
Metabolic side effects have included weight loss (3%).
Metabolic side effects reported in premarketing Phase 3 trials have included tramadol and effexor gain, increased alkaline phosphatase, dehydration, hypercholesteremia, hyperglycemia, hyperlipemia, hypoglycemia, hypokalemia, increased SGOT (AST), increased SGPT (ALT), thirst, bilirubinemia, increased BUN, increased creatinine, diabetes mellitus, glycosuria, tramadol and effexor abnormal healing, hemochromatosis, hypercalcinuria, hyperkalemia, hyperphosphatemia, hyperuricemia, hypocholesteremia, hyponatremia, hypophosphatemia, hypoproteinemia, and uremia. In one case, toxic hepatitis tramadol and effexor with low dose (37.5 mg/day) venlafaxine was reported in a patient with a history of chronic hepatitis.
Endocrine
Endocrine side effects have included flushing.
Endocrine side effects reported in premarketing Phase 3 trials have rarely included galactorrhea, goiter, hyperthyroidism, hypothyroidism, thyroid nodule, and thyroiditis. There have been reports of increases in prothrombin time, partial thromboplastin time, or INR when tramadol and effexor was given to patients receiving warfarin therapy.
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Side Effects by Body System
Gastrointestinal
Gastrointestinal side effects have frequently included tramadol and effexor (up to 35%), dry mouth (14% to 18%), constipation (12%), anorexia (12% to 23%), vomiting, diarrhea (5% to 12%), eructation, abdominal pain, and flatulence.
Gastrointestinal side effects reported in premarketing Phase 3 trials have included increased appetite, bruxism, colitis, dysphagia, tongue edema, esophagitis, gastritis, gastroenteritis, gastrointestinal ulcer, gingivitis, glossitis, rectal tramadol and effexor hemorrhoids, melena, oral moniliasis, stomatitis, mouth ulceration, abdominal distention, biliary pain, cheilitis, cholecystitis, cholelithiasis, esophageal spasms, duodenitis, hematemesis, gastroesophageal reflux disease, gastrointestinal hemorrhage, gum hemorrhage, hepatitis, ileitis, jaundice, intestinal tramadol and effexor liver tenderness, parotitis, periodontitis, proctitis, rectal disorder, salivary gland enlargement, increased salivation, soft stools, and tongue discoloration.
Nervous system
Nervous system side effects have frequently included dizziness (16%), somnolence (up to 14%), insomnia (11% to 25%), fatigue (11%), nervousness (9%), abnormal dreams, sleep abnormalities, tremor, depression, paresthesia, decreased libido, agitation, hypertonia, anxiety, delirium, and twitching.
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