Opioid · atypical-opioid
Tramadol
aka Ultram · Tramal · Zydol · Tramadex · Tramacet · Ralivia
Last verified
Tramadol is a synthetic atypical opioid first marketed in 1977 in West Germany. It is structurally unrelated to morphine and works through two parallel mechanisms: weak agonism of the mu-opioid receptor (via its metabolite O-desmethyltramadol) and inhibition of serotonin and noradrenaline reuptake (via the parent molecule). The dual action is what makes it useful for neuropathic pain where pure opioids underperform, and it is what makes it dangerous in ways pure opioids are not.
It was originally marketed as a "non-addictive opioid" — a claim that did not survive contact with reality. Major regulators (FDA in 2014, EMA in stages) have since restricted prescribing and added boxed warnings. It remains one of the most-prescribed opioids in Europe and a high-volume drug in counterfeit pressed-pill markets in West Africa and parts of South Asia.
Tramadol carries three distinct overdose pathways. Classical opioid respiratory depression, particularly when combined with benzos or alcohol. Seizures from the SNRI activity, becoming a real risk above roughly 400 mg/day and at much lower doses in people with epilepsy history, head injury or eating disorders. And serotonin syndrome when combined with SSRIs, SNRIs, MAOIs, MDMA, linezolid or even high-dose 5-HTP. That third pathway is the easiest to walk into because both drugs are typically prescription, prescribed for different problems by different doctors.
Harm reduction
- Never combine with serotonergic drugs — SSRIs, SNRIs, MAOIs, MDMA, high-dose 5-HTP, linezolid. Serotonin syndrome can kill within hours.
- Stay under 400 mg/day even with tolerance. The seizure-threshold problem is dose-dependent and does not respect tolerance.
- Never combine with benzos or alcohol in significant doses. The respiratory-depression interaction is the deadliest scenario.
- Test pressed pills. Fentanyl strips are essential for street-sourced tablets, especially anything labelled at unusual mg amounts (225, 250, 500). Counterfeit "Royal 225" tramadol is endemic in some West African markets and increasingly contains fentanyl-class analogues.
- Standard drug tests miss tramadol. This is a clinical message: if someone is in an ER unresponsive and tested negative for opiates, naloxone should still be tried.
- Taper, don't stop. The combined opioid + SNRI withdrawal is genuinely worse than most pure opioids. Reduce dose by 10% every week or two; cross over to a longer-acting opioid under medical supervision if you've been using daily for months.
Dosage.
Oral
- Threshold
- 25 mg
- Light
- 25–75 mg
- Common
- 50–100 mg
- Strong
- 150–200 mg
- Heavy
- 200 mg
Insufflated
- Threshold
- 25 mg
- Light
- 25–50 mg
- Common
- 50–75 mg
- Strong
- 75–100 mg
- Heavy
- 100 mg
| Route | Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|---|
| Oral | 25 mg | 25–75 mg | 50–100 mg | 150–200 mg | 200 mg |
| Insufflated | 25 mg | 25–50 mg | 50–75 mg | 75–100 mg | 100 mg |
Start at the bottom. Body chemistry, tolerance, and combinations all matter.
Duration.
Oral
total ~ 1320 min- Onset
- 30–60 min
- Peak
- 1.5–3h
- Offset
- 4–6h
- After
- 6–12h
Insufflated
total ~ 855 min- Onset
- 5–15 min
- Peak
- 60–120 min
- Offset
- 3–4h
- After
- 4–8h
Effects.
Positive
- Moderate analgesia (weaker than morphine per mg)
- Mood elevation and anxiolysis (atypical for an opioid)
- Mild stimulation at lower doses due to SNRI activity
- Useful for neuropathic pain where pure opioids fall short
Neutral
- Pinpoint pupils
- Nausea, especially early in dosing
- Mild stimulation that can interfere with sleep
- Pruritus (itching)
Negative
- Seizure risk at doses above 400 mg/day and lower in susceptible people
- Serotonin syndrome when combined with serotonergic drugs (potentially fatal)
- Physical dependence after 2-4 weeks of daily use
- Withdrawal that combines opioid (RLS, sweats) with SNRI (brain zaps, mood crash)
- Respiratory depression with other depressants
Interactions.
Heads up
Many drug combinations are unsafe even at low doses. When in doubt, take less or abstain. Always cross-check with the interaction checker tool.
Dangerous
Combination may cause serious harm. Avoid.
- benzodiazepines
- alcohol
- ghb
- gbl
- other-opioids
- gabapentinoids
Unsafe
Substantial risk. Combination not recommended.
- amphetamine
- cocaine
- methamphetamine
- dxm
- bupropion
Caution
Mild interaction. Use with reduced doses.
- cannabis
- ketamine
- psychedelics
Testing.
- ReagentFentanyl-stripExpected reactionRecommended for any street-sourced "tramadol" tablets. Counterfeit pharmaceutical opioids are increasingly fentanyl-laced.
- ReagentMarquisExpected reactionFaint yellow to no reaction
- ReagentMeckeExpected reactionNo significant reaction
- ReagentMandelinExpected reactionNo significant reaction
- ReagentEhrlichExpected reactionNo reaction
- ReagentOpioid-immunoassayExpected reactionMost standard opiate panels do NOT detect tramadol. Dedicated tramadol immunoassays exist but are not in the standard 5-panel test.
| Reagent | Expected reaction |
|---|---|
| Fentanyl-strip | Recommended for any street-sourced "tramadol" tablets. Counterfeit pharmaceutical opioids are increasingly fentanyl-laced. |
| Marquis | Faint yellow to no reaction |
| Mecke | No significant reaction |
| Mandelin | No significant reaction |
| Ehrlich | No reaction |
| Opioid-immunoassay | Most standard opiate panels do NOT detect tramadol. Dedicated tramadol immunoassays exist but are not in the standard 5-panel test. |
Cross-check with a secondary reagent. Tests tell you what something isn't, not always what it is.
Legal status.
- DEGermanyprescription-only
- ATAustriaprescription-only
- CHSwitzerlandprescription-only
- NLNetherlandsprescription-only
- BEBelgiumprescription-only
- LULuxembourgprescription-only
- FRFranceprescription-only
- ESSpainprescription-only
- PTPortugalprescription-only
- ITItalyprescription-only
- PLPolandprescription-only
- CZCzechiaprescription-only
- SESwedenprescription-only
- DKDenmarkprescription-only
- NONorwayprescription-only
- FIFinlandprescription-only
- IEIrelandclass-c
- UKUnited Kingdomclass-c
- USUnited Statesschedule-4
- CACanadaschedule-1
- AUAustraliaschedule-4
- TRTurkeyprescription-only
| Country | Status |
|---|---|
| DEGermany | prescription-only |
| ATAustria | prescription-only |
| CHSwitzerland | prescription-only |
| NLNetherlands | prescription-only |
| BEBelgium | prescription-only |
| LULuxembourg | prescription-only |
| FRFrance | prescription-only |
| ESSpain | prescription-only |
| PTPortugal | prescription-only |
| ITItaly | prescription-only |
| PLPoland | prescription-only |
| CZCzechia | prescription-only |
| SESweden | prescription-only |
| DKDenmark | prescription-only |
| NONorway | prescription-only |
| FIFinland | prescription-only |
| IEIreland | class-c |
| UKUnited Kingdom | class-c |
| USUnited States | schedule-4 |
| CACanada | schedule-1 |
| AUAustralia | schedule-4 |
| TRTurkey | prescription-only |
Information, not legal advice. Status varies by region and changes over time.
FAQ.
How long does Tramadol last?
Immediate-release tramadol peaks 1.5-3 hours after an oral dose and noticeable effects last 4-6 hours. Extended-release versions (Tramal Long, Ultram ER) are designed to last 12-24 hours. The half-life is longer than morphine's, so even the IR form leaves measurable opioid effect into the next morning at higher doses.
Is Tramadol a strong opioid?
No — by milligram, tramadol is roughly one-tenth as potent as morphine. The reason it gets scheduled the way it does is the metabolite O-desmethyltramadol, which is a normal opioid agonist with about ten times the affinity of tramadol itself. CYP2D6 enzyme variability means some people produce a lot of it (high opioid effect, overdose risk at "normal" doses) and others produce barely any (no analgesia, no high).
Tramadol vs codeine — which is stronger?
They sit at roughly similar potency for analgesia but they work very differently. Codeine is a pure opioid that gets metabolised to morphine. Tramadol is a weak opioid agonist plus a serotonin/noradrenaline reuptake inhibitor — closer to a low-dose antidepressant stapled to a weak opioid. Tramadol's stimulating, mood-lifting feel is unusual for opioids; codeine is more sedating, classical opioid feel.
Can you overdose on Tramadol?
Yes, in three distinct ways. First, respiratory depression like any opioid, most likely when combined with benzos or alcohol. Second, seizures from the SNRI activity, particularly above 400 mg/day. Third, serotonin syndrome when combined with SSRIs, SNRIs, MAOIs, MDMA or other serotonergic drugs. The combination-overdose pattern is the deadliest and the easiest to walk into.
Is Tramadol addictive?
Yes. The dual opioid + SNRI mechanism means withdrawal is unusually bad. You get classical opioid withdrawal (restless legs, sweats, GI upset) on top of SNRI discontinuation symptoms (brain zaps, severe mood crash, anxiety). Many users describe tramadol withdrawal as worse than other opioids despite the lower potency.
Can I take Tramadol with my antidepressant?
Combining tramadol with SSRIs, SNRIs or MAOIs significantly raises the risk of serotonin syndrome — a potentially fatal condition. This combination is routinely missed because both drugs are prescription and the SSRI was started by a different doctor. If you're on an antidepressant, talk to your prescriber before any tramadol use.
Why does Tramadol cause seizures?
Tramadol lowers the seizure threshold via its serotonergic and noradrenergic activity. The risk is dose-dependent but starts being meaningful around 400 mg/day in healthy adults. People with epilepsy history, head injury, eating disorders or who use other threshold-lowering drugs (bupropion, tricyclic antidepressants) are at higher risk at much lower doses.
How long does Tramadol stay in your system?
Tramadol is detectable in urine for 1-4 days after a single dose. The active metabolite is detectable for longer. Critically, standard 5-panel workplace drug tests typically do NOT screen for tramadol — it doesn't trigger the standard opiate immunoassay. A dedicated tramadol test or extended panel is required.
Can you mix Tramadol with alcohol?
Both depress the CNS and the combination is one of the more common scenarios in tramadol-related fatal overdoses. Beyond respiratory risk, tramadol-induced seizure risk goes up with alcohol because both can lower the threshold. Drink dramatically less than usual or skip the drinks entirely.
What does Tramadol withdrawal feel like?
A mix of opioid withdrawal (restless legs, cramps, sweating, diarrhoea, insomnia, anxiety) and SNRI discontinuation (brain zaps — sudden electrical sensations, severe mood crash, sensory weirdness). Onset 12-24 hours after the last dose, peak around days 3-5; residual mood symptoms can drag on for weeks. Tapering instead of cold-turkey makes a large difference. Long-term users should not stop abruptly.