Drug interactions
Butorphanol + Lofepramine
Severity: Moderate
Butorphanol and Lofepramine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Lofepramine is a tricyclic antidepressant with sedative properties, and butorphanol is an opioid analgesic. Additive drowsiness, psychomotor impairment and respiratory depression are possible.
What this interaction means in plain words
Butorphanol and Lofepramine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive CNS depression from opioid agonism and tricyclic antihistaminic and anticholinergic effects.
What to do
Use the lowest effective doses and monitor for sedation and respiratory depression. Counsel patients on driving and operating machinery.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Butorphanol
- Butorphanol + Olanzapine / samidorphan Contraindicated
- Butorphanol + Sodium oxybate Contraindicated
- Alfentanil + Butorphanol Major
- Alprazolam + Butorphanol Major
- Alvimopan + Butorphanol Major
- Amobarbital + Butorphanol Major
Frequently asked questions
Can I take Butorphanol with Lofepramine?
MediHelp rates the interaction as moderate. Butorphanol and Lofepramine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Lofepramine is a tricyclic antidepressant with sedative properties, and butorphanol is an opioid analgesic. Additive drowsiness, psychomotor impairment and respiratory depression are possible.
How serious is the interaction between Butorphanol and Lofepramine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for sedation and respiratory depression. Counsel patients on driving and operating machinery.
What other medicines interact with Butorphanol?
MediHelp also lists interactions of Butorphanol with, for example, Olanzapine / samidorphan, Sodium oxybate, Alfentanil. The full list is on the Butorphanol page.
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