Tramadol Hydrochloride Side Effects
Generic Name: Tramadol
Please note - some side effects for Tramadol Hydrochloride may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).
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Tramadol Hydrochloride
Tramadol was administered to 550 patients during the double-blind or open-label extension periods in U.S. studies of chronic nonmalignant pain. Of these patients, 375 were 65 years old or older. Table 2 reports the cumulative incidence rate of adverse reactions by 7, 30 and 90 days for the most frequent reactions (5% or more by 7 days). The most frequently reported events were in the central nervous system and gastrointestinal system. Although there actions listed in the table are felt to be probably related to tramadol administration, the reported rates also include some events that may have been due to underlying disease or concomitant medication. The overall incidence rates of adverse experiences in these trials were similar for tramadol and the active control groups, TYLENOL® with Codeine #3 (acetaminophen 300 mg with codeine phosphate 30 mg)*, and aspirin 325 mg with codeine phosphate 30 mg, however, the rates of withdrawals due to adverse events appeared to be higher in the tramadol groups.
*TYLENOL® is a registered trademark of RW Johnson.
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Up to 7 Days |
Up to 30 Days |
Up to 90 Days |
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| Dizziness/Vertigo | 26% | 31% | 33% |
| Nausea | 24% | 34% | 40% |
| Constipation | 24% | 38% | 46% |
| Headache | 18% | 26% | 32% |
| Somnolence | 16% | 23% | 25% |
| Vomiting | 9% | 13% | 17% |
| Pruritus | 8% | 10% | 11% |
| “CNS Stimulation”1 | 7% | 11% | 14% |
| Asthenia | 6% | 11% | 12% |
| Sweating | 6% | 7% | 9% |
| Dyspepsia | 5% | 9% | 13% |
| Dry Mouth | 5% | 9% | 10% |
| Diarrhea | 5% | 6% | 10% |
1“CNS Stimulation” is a composite of nervousness, anxiety, agitation, tremor,spasticity, euphoria, emotional lability and hallucinations.
Incidence 1% to less than 5%, possibly causally related: the following lists adverse reactions that occurred with an incidence of 1% to less than 5% in clinical trials, and for which the possibility of a causal relationship with tramadol exists.
Body as a Whole:
Malaise.
Cardiovascular:
Vasodilation.
Central Nervous System:
Anxiety, Confusion, Coordination disturbance, Euphoria, Miosis, Nervousness, Sleep disorder.
Gastrointestinal:
Abdominal pain, Anorexia, Flatulence.
Musculoskeletal:
Hypertonia.
Skin:
Rash.
Special Senses:
Visual disturbance.
Urogenital:
Menopausal symptoms, Urinary frequency, Urinary retention.
Incidence less than 1%, possibly causally related: the following lists adverse reactions that occurred with an incidence of less than 1% in clinical trials and/or reported in post-marketing experience.
Body as a Whole:
Accidental injury, Allergic reaction, Anaphylaxis, Death,
Suicidal tendency, Weight loss, Serotonin syndrome (mental status change, hyperreflexia, fever, shivering, tremor, agitation, diaphoresis, seizures and coma).
Cardiovascular:
Orthostatic hypotension, Syncope, Tachycardia.
Central Nervous System:
Abnormal gait, Amnesia, Cognitive dysfunction, Depression, Difficulty in concentration, Hallucinations, Paresthesia, Seizure, Tremor.
Respiratory:
Dyspnea.
Skin:
Stevens-Johnson syndrome/Toxic epidermal necrolysis, Urticaria, Vesicles.
Special Senses:
Dysgeusia.
Urogenital:
Dysuria, Menstrual disorder.
Other adverse experiences, causal relationship unknown: A variety of other adverse events were reported infrequently in patients taking tramadol during clinical trials and/or reported in post-marketing experience. A causal relationship between tramadol and these events has not been determined. However, the most significant events are listed below as alerting information to the physician.
Cardiovascular:
Abnormal ECG, Hypertension, Hypotension, Myocardial ischemia, Palpitations, Pulmonary edema, Pulmonary embolism.
Central Nervous system:
Migraine, Speech disorders.
Gastrointestinal:
Gastrointestinal bleeding, Hepatitis, Stomatitis, Liver failure.
Laboratory Abnormalities:
Creatinine increase, Elevated liver enzymes,
Hemoglobin decrease, Proteinuria.
Sensory:
Cataracts, Deafness, Tinnitus.
TopMore resources:
Tramadol - Includes detailed dosage instructions.
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