Tramadol and Gabapentin Together: Risks and Safety

Interactions

Tramadol and gabapentin are often prescribed together for nerve pain and back pain, and the combination can work well. But both slow the brain and breathing, and regulators in the US, UK and Australia warn that combining an opioid with gabapentin or pregabalin raises the risk of serious breathing problems. Take them only as prescribed, avoid alcohol and other sedatives, and know the warning signs.

By Dr. Ema HudsonUpdated: October 20263 min read

The short answer

They can be taken together when a prescriber has chosen the combination and the doses, but not as a do-it-yourself mix.
Main risk: extra drowsiness, dizziness, confusion and slowed breathing, highest when starting or increasing doses, in older people, with lung disease or kidney problems, and with alcohol or other sedatives.
Emergency signs: very hard to wake, slow or shallow breathing, blue lips. Call an ambulance; naloxone reverses the tramadol part.

Why tramadol and gabapentin are prescribed together

Gabapentin (Neurontin, Gabaran) calms overactive nerves and is used for neuropathic pain (sciatica, diabetic nerve pain, shingles pain) and epilepsy. Tramadol (Tramal, Zydol, Ultram) is a weak opioid that also increases serotonin and noradrenaline in pain pathways. Combining them can relieve pain with lower doses of each than either alone would need. The trade-off is that both cause sedation, and gabapentin increases how much the opioid depresses breathing.

The risks in detail

Risk	Why	Who is most at risk
Slowed or stopped breathing	Opioid plus gabapentinoid both depress the breathing centre	Older adults, COPD or sleep apnoea, kidney impairment, alcohol, other sedatives
Drowsiness, dizziness, falls	Additive sedation	Older adults; first days and after dose increases
Seizures	Tramadol lowers the seizure threshold (gabapentin does not cause this)	Epilepsy, high tramadol doses, some antidepressants
Serotonin syndrome	Tramadol with SSRIs, SNRIs, amitriptyline, triptans	People on antidepressants
Dependence and misuse	Both can cause dependence; gabapentin is a controlled drug in the UK since 2019	History of substance use; long-term use

In 2019 the US FDA added warnings to gabapentin and pregabalin about serious breathing difficulties when used with opioids or other central nervous system depressants, or in people with lung problems. The UK reclassified both as Class C controlled drugs the same year.

How to use the combination more safely

Take exactly the prescribed doses and times. Spacing them a few hours apart doesn’t remove the interaction, because both stay in the body for many hours.
No alcohol, and no extra sedatives: benzodiazepines, sleeping tablets, sedating antihistamines, cannabis.
Start low, go slow: expect your prescriber to increase one medicine at a time.
Don’t drive until you know how you react, and not if you feel drowsy.
Tell your doctor about kidney disease (gabapentin builds up), breathing problems, sleep apnoea and any antidepressants.
Ask about naloxone to keep at home if you take opioids with other sedating medicines.
Don’t stop suddenly: gabapentin and tramadol both cause withdrawal symptoms; reduce with your prescriber.

Anti-inflammatories and paracetamol can usually be added to tramadol; see opioids with Nurofen.

Warning signs

Call an ambulance if someone is unusually sleepy and hard to wake, breathes slowly or shallowly, has blue or grey lips, or becomes confused. Give naloxone if available. Seek urgent help for agitation, shivering, muscle twitching and fever (possible serotonin syndrome) or a seizure.

Frequently asked questions

Can I take tramadol 7 hours after my last gabapentin dose?

If both are prescribed for you on that schedule, yes. A gap doesn’t cancel the interaction, because gabapentin is still active 7 hours later. Don’t take extra doses of either, and avoid alcohol.

Can you take tramadol with Suboxone?

Generally no. Buprenorphine in Suboxone binds tightly to opioid receptors and blocks much of tramadol’s effect, while adding sedation and serotonin risk. Combining opioids outside a prescriber’s plan is dangerous; talk to your treatment provider about pain management.

Is pregabalin (Lyrica) with tramadol the same?

Yes, pregabalin carries the same breathing and sedation warnings as gabapentin when combined with opioids.

Is CBD oil an alternative to gabapentin for nerve pain?

Evidence for CBD in nerve pain is limited and products vary in content. CBD can also interact with other medicines through liver enzymes. Discuss it with your doctor rather than swapping on your own.

More on this topic: drowsiness, serotonin and other stacked side effects are covered in Combining Medicines Safely: Interactions, Timing and Alcohol.

Sources and further reading