Drug interactions
Gabapentin + Mirogabalin
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.
Overview
Additive CNS depressant effects and therapeutic duplication of α2δ ligands, increasing risk of dizziness, somnolence, ataxia, falls, and peripheral edema; potential respiratory depression in high-risk patients or with other CNS depressants.
Mechanism of action
Pharmacodynamic: combined α2δ-1/α2δ-2 calcium channel subunit modulation enhances CNS depressant effects; no meaningful pharmacokinetic interaction (both primarily renally eliminated).
Clinical management
Avoid concurrent use; select a single gabapentinoid. If switching, cross-taper to minimize withdrawal/adverse effects. If coadministration is unavoidable, use lowest effective doses, adjust for renal impairment, and monitor for excessive sedation, respiratory depression, gait instability, and edema.
Drug reference
References
- Tarlige (mirogabalin besylate) Tablets: Japanese Package Insert — PMDA Label
- FDA warns about serious breathing problems with seizure and nerve pain medicines gabapentin and pregabalin — FDA
- Pharmacotherapy for neuropathic pain in adults — UpToDate
Frequently asked questions
Can I take Gabapentin with Mirogabalin?
The interaction is rated: Moderate. Additive CNS depressant effects and therapeutic duplication of α2δ ligands, increasing risk of dizziness, somnolence, ataxia, falls, and peripheral edema; potential respiratory depression in high-risk patients or with other CNS depressants.
How serious is the interaction between Gabapentin and Mirogabalin?
The interaction is rated: Moderate. Evidence level: Moderate.
How is the interaction between Gabapentin and Mirogabalin managed?
Avoid concurrent use; select a single gabapentinoid. If switching, cross-taper to minimize withdrawal/adverse effects. If coadministration is unavoidable, use lowest effective doses, adjust for renal impairment, and monitor for excessive sedation, respiratory depression, gait instability, and edema.
Why do Gabapentin and Mirogabalin interact?
Pharmacodynamic: combined α2δ-1/α2δ-2 calcium channel subunit modulation enhances CNS depressant effects; no meaningful pharmacokinetic interaction (both primarily renally eliminated).
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