Adding gabapentin to quetiapine.
- Quetiapine is principally metabolized by CYP3A4 to active and inactive metabolites.
- Gabapentin is eliminated unchanged by the kidney for 100%.
- This combination of drugs may have possible synergistic effects. There are no reports for pharmacokinetic drug interactions. However, the combination will have additional side effects.
- Start gabapentine according to the general dosing advice.
- Central nervous system- and/or respiratory-depressant effects may be additively or synergistically increased in patients taking multiple drugs that cause these effects. 
- ↑ 1.01.11.2 KNMP; Informatorium Medicamentorum 2015; Monografie "quetiapine" (Dutch)
- ↑ NVZA; Toxicology.org; Monografie 73 (dutch)
- ↑ Woods SW Chlorpromazine equivalent doses for the newer atypical antipsychotics J Clin Psychiatry 2003;64:663-667
- ↑ Drugs.com quetiapine-fumarate
- ↑ Farmacotherapeutisch Kompas - gabapentine (dutch)
- ↑ Interactions between quetiapine and gabapentin on drugs.com
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