Drug Interaction Report

Guselkumab may decrease the blood levels and effects of trimipramine. You may need a dose adjustment if you have been receiving trimipramine and are starting treatment with guselkumab. Likewise, if you have been receiving both medications, the dose of trimipramine may need to be adjusted when guselkumab is discontinued. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Ask your doctor before using trimipramine together with ethanol (alcohol), this can alter the effects of trimipramine and cause increased side effects. Call the doctor if you experience uneven heartbeats, extreme drowsiness, confusion, agitation, vomiting, blurred vision, sweating, muscle stiffness, feeling light-headed, and seizures. You should be warned not to exceed recommended dosages, to avoid alcohol, and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.