Opioid education guide
An atypical Schedule IV opioid that combines weak opioid activity with serotonin and norepinephrine reuptake inhibition, creating seizure and serotonin-syndrome risks.
01 · Classification
A synthetic centrally acting analgesic. CYP2D6 converts some tramadol to the more potent M1 opioid metabolite, while the parent drug also affects serotonin and norepinephrine signaling and can lower the seizure threshold.
02 · Acute effects
Therapeutic / low
Analgesia, mild calming or alertness, dizziness, nausea, sweating, and dry mouth.
High / misuse
Euphoria, agitation, tremor, confusion, anxiety, tachycardia, hypertension, and sweating.
Severe toxicity
Seizures, delirium, hallucinations, serotonin syndrome, respiratory depression, or cardiovascular collapse.
Medical emergency
Pinpoint pupils, profound unresponsiveness, slow or absent breathing, gurgling, blue or gray skin, or limp extremities require immediate help.
Dangerous combinations
SSRIs, SNRIs, MAOIs, TCAs, bupropion, stimulants, antipsychotics, alcohol, and benzodiazepines can make toxicity more likely.
Never mix opioids with other sedatives or use an unverified pill. Tell emergency responders what may have been taken.
03 · Long-term consequences
Stopping after sustained use can cause opioid withdrawal alongside brain zaps, panic, depression, paresthesias, and suicidal thoughts.
Long-term exposure and high doses can lower the seizure threshold and lead to unprovoked seizures.
Excess serotonin signaling can cause hyperthermia, clonus, agitation, autonomic instability, and death.
Chronic use has been associated with hypoglycemia and adrenal insufficiency.
Verified resources
1-800-662-4357 · Free, confidential, 24/7 treatment referral and information.
For slow or absent breathing, loss of consciousness, or suspected overdose, call 911 immediately and use naloxone if available.