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Nucynta, Nucynta ER Interactions: What to Avoid

Documented interactions for Nucynta, Nucynta ER (Tapentadol HCl (immediate-release tablet)). Each entry cites the prescribing information or FDA safety communication it is based on.

2 contraindicated5 major1 moderate

Interaction summary

SeverityInteracts withClassConcern
ContraindicatedMAO inhibitors (phenelzine, tranylcypromine, linezolid, methylene blue)Monoamine oxidase inhibitorTapentadol with MAO inhibitors is contraindicated
ContraindicatedMAO inhibitors (phenelzine, tranylcypromine, linezolid, methylene blue)Monoamine oxidase inhibitorOpioid with MAO inhibitors is contraindicated
MajorAlcohol (ethanol)CNS depressantOpioid with alcohol: additive respiratory depression
MajorOther benzodiazepines (diazepam, clonazepam, lorazepam, alprazolam, temazepam)BenzodiazepineTapentadol with benzodiazepine: risk of profound sedation, respiratory depression, coma, and death
MajorOther benzodiazepines (diazepam, clonazepam, lorazepam, alprazolam, temazepam)BenzodiazepineOpioid with benzodiazepine: risk of profound sedation, respiratory depression, coma, and death
MajorOther CNS depressants (opioids, benzodiazepines, sleep aids, sedating antihistamines, gabapentinoids, muscle relaxants)CNS depressantOpioid with other CNS depressants: additive respiratory depression
MajorOther gabapentinoids (gabapentin, pregabalin)GabapentinoidOpioid with gabapentinoid: serious breathing difficulties
ModerateStrong CYP3A4 inhibitors (ketoconazole, itraconazole, clarithromycin, ritonavir, grapefruit juice)CYP3A4 inhibitorStrong CYP3A4 inhibitors raise tapentadol exposure

Detailed interactions

Contraindicated

Tapentadol with MAO inhibitors is contraindicated

With: MAO inhibitors (phenelzine, tranylcypromine, linezolid, methylene blue) Monoamine oxidase inhibitor

Why it happens

MAO inhibitors impair metabolism and potentiate opioid effects.

What can happen

Severe unpredictable reactions including respiratory depression and death.

What to do

Do not combine.

Basis: Tapentadol HCl tablets prescribing information, Contraindications. source

Contraindicated

Opioid with MAO inhibitors is contraindicated

With: MAO inhibitors (phenelzine, tranylcypromine, linezolid, methylene blue) Monoamine oxidase inhibitor

Why it happens

MAO inhibitors potentiate opioid effects and impair metabolism.

What can happen

Severe unpredictable reactions including respiratory depression and death.

What to do

Do not combine.

Basis: Opioid-containing product labeling, Contraindications. source

Major

Opioid with alcohol: additive respiratory depression

With: Alcohol (ethanol) CNS depressant

Why it happens

Both agents depress the central nervous system and breathing.

What can happen

Respiratory depression, deep sedation, coma, and death.

What to do

Avoid alcohol during opioid therapy.

Basis: Opioid-containing product labeling, Warnings and Precautions. source

Major

Tapentadol with benzodiazepine: risk of profound sedation, respiratory depression, coma, and death

With: Other benzodiazepines (diazepam, clonazepam, lorazepam, alprazolam, temazepam) Benzodiazepine

Why it happens

Additive depression of the central nervous system and respiratory drive.

What can happen

FDA requires a boxed warning on tapentadol-containing products describing this combination.

What to do

Avoid where possible; if used, lowest effective doses for the shortest duration with monitoring.

Basis: Tapentadol HCl tablets prescribing information, Boxed Warning. source

Major

Opioid with benzodiazepine: risk of profound sedation, respiratory depression, coma, and death

With: Other benzodiazepines (diazepam, clonazepam, lorazepam, alprazolam, temazepam) Benzodiazepine

Why it happens

Additive depression of the central nervous system and respiratory drive.

What can happen

FDA requires a boxed warning on opioid-containing products describing this combination.

What to do

Avoid where possible. If used, lowest effective doses for the shortest duration with monitoring.

Basis: FDA Drug Safety Communication (2016); opioid boxed warning. source

Major

Opioid with other CNS depressants: additive respiratory depression

With: Other CNS depressants (opioids, benzodiazepines, sleep aids, sedating antihistamines, gabapentinoids, muscle relaxants) CNS depressant

Why it happens

Additive central nervous system depression and slowed breathing.

What can happen

Respiratory depression and overdose, particularly in older adults.

What to do

Disclose all sedating medications to the prescriber and pharmacist.

Basis: Opioid-containing product labeling, Warnings and Precautions. source

Major

Opioid with gabapentinoid: serious breathing difficulties

With: Other gabapentinoids (gabapentin, pregabalin) Gabapentinoid

Why it happens

Additive respiratory depression.

What can happen

FDA warns of serious breathing difficulties and increased risk of death.

What to do

Use the lowest effective gabapentinoid dose and monitor for slowed breathing.

Basis: FDA Drug Safety Communication (2021). source

Moderate

Strong CYP3A4 inhibitors raise tapentadol exposure

With: Strong CYP3A4 inhibitors (ketoconazole, itraconazole, clarithromycin, ritonavir, grapefruit juice) CYP3A4 inhibitor

Why it happens

CYP3A4 inhibition slows tapentadol clearance.

What can happen

Higher plasma levels may increase adverse effects.

What to do

Labeling advises caution and careful monitoring with strong CYP3A4 inhibitors.

Basis: Tapentadol HCl tablets prescribing information, Drug Interactions. source

Common questions

What should I know about Nucynta, Nucynta ER interactions?

We have documented 8 interaction classes for Nucynta, Nucynta ER in our dataset. Usually avoided, or used only with explicit prescriber oversight and close monitoring. The most serious items on this page are marked contraindicated or major.

Can I take Nucynta, Nucynta ER with alcohol?

Alcohol interacts with most of the medications on this site because it adds to sedation and slows breathing. For the specific documented risk, see the relevant entry above. The general rule from labeling is to avoid alcohol.

Does an empty result mean Nucynta, Nucynta ER is safe with other drugs?

No. An empty result only means our curated dataset has no matching rule. A pharmacist can run a full interaction screen against every medication and supplement you take.

Related

Editorial Review Board

Clinical review by licensed pharmacists (PharmD)

Every page on this site is reviewed against current FDA prescribing information, DailyMed labelling, DEA scheduling regulations and MedlinePlus monographs before publication. Reviewers have no commercial relationship with any manufacturer or pharmacy.

Last substantive review: October 01, 2026

Important

This site provides educational information only and does not sell, prescribe or dispense medications. Always consult a licensed healthcare provider. This page is not medical advice.