Ultram is used to relieve moderate to moderately severe pain. It also may be used to treat pain caused by surgery and chronic conditions such as cancer or joint pain. Ultram works by decreasing the brain's perception and response to pain. It also reduces the size or magnitude of the pain signal passed from one nerve to another. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
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The mode of action of tramadol has yet to be fully understood, but it is believed to work through modulation of the GABAergic, noradrenergic and serotonergic systems, in addition to its mild agonism of the ?-opioid receptor. The contribution of non-opioid activity is demonstrated by the analgesic effects of tramadol not being fully antagonised by the ?-opioid receptor antagonist naloxone.
Tramadol is marketed as a racemic mixture with a weak affinity for the ?-opioid receptor (approximately 1/6th that of morphine). The (+)-enantiomer is approximately four times more potent than the (-)-enantiomer in terms of ?-opioid receptor affinity and 5-HT reuptake, whereas the (-)-enantiomer is responsible for noradrenaline reuptake effects (Shipton, 2000). These actions appear to produce a synergistic analgesic effect, with (+)-tramadol exhibiting 10-fold higher analgesic activity than (-)-tramadol
Tramadol is used for pain relief.
Take Ultram by mouth as prescribed. It is usually taken every 4 to 6 hours as needed. Use Ultram exactly as prescribed. Do not increase your dose, use it more frequently or use it for a longer period of time than prescribed because this drug can be habit-forming. Also, if used for an extended period of time, do not suddenly stop using this drug without your doctor's approval. When used for extended periods, Ultram may not work as well and may require different dosing. Consult your doctor if the medication stops working well.
Although side effects from Ultram are not common, they can occur. The most frequently reported events were in the central nervous system (Migraine, Speech disorders) and gastrointestinal system (Gastrointestinal bleeding, Hepatitis, Stomatitis, Liver failure). Tell your doctor if any of these symptoms are severe or do not go away: dizziness, headache, drowsiness, blurred vision, upset stomach, vomiting, and diarrhea. If you experience any of the following symptoms, call your doctor immediately: fast heartbeat, redness, swelling, and itching of the face, numbness or tingling of the hands and feet, difficulty breathing, changes in urination, seizures.
Acute overdosage with tramadol can be manifested by respiratory depression, somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, constricted pupils, bradycardia, hypotension, and death.
Deaths due to overdose have been reported with abuse and misuse of tramadol, by ingesting, inhaling, or injecting the crushed tablets. Review of case reports has indicated that the risk of fatal overdose is further increased when tramadol is abused concurrently with alcohol or other CNS depressants, including other opioids.
Do not drink alcohol while taking Ultram. Alcohol may cause a dangerous decrease in breathing and/ or liver problems when used during treatment with Ultram. Use caution when driving, operating machinery, or performing other hazardous activities.