Drug Interactions between mephenytoin and zuranolone

Mephenytoin levels may decrease when the suspension is given with enteral feedings. This could lead to a loss of seizure control. You could interrupt the feeding for 2 hours before and after the mephenytoin dose. Alternatively, you may give the mephenytoin suspension diluted in water and flush the tube with water after administration. These would make it easier for your body to absorb the medication. However, this still may not entirely avoid the interaction and may not always be feasible. You should have your mephenytoin levels checked upon starting and stopping of enteral feedings. In addition, using mephenytoin together with food may alter the effects of mephenytoin. Contact your doctor if you experience worsening of seizure control or symptoms of toxicity, including twitching eye movements, slurred speech, loss of balance, tremor, muscle stiffness or weakness, nausea, vomiting, feeling light-headed, fainting, and slow or shallow breathing. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Ask your doctor before making any changes to your therapy.

Zuranolone must be taken with fat-containing food to ensure adequate absorption of the mediation. It is also best to avoid or limit the consumption of alcohol, as it can increase drowsiness or other nervous system side effects of zuranolone. You should also avoid activities requiring mental alertness such as driving or operating hazardous machinery until at least 12 hours after taking zuranolone. 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.