Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
When these two medicines are taken together, your body may process felbamate more quickly and hydantoins or phenobarbital more slowly.
What might happen:
Your blood levels of felbamate may decrease and cause a greater chance for seizures. The blood levels of your hydantoin or phenobarbital may increase and cause toxic effects.
What you should do about this interaction:
If you experience seizures or begin to experience seizures more often, contact your doctor. If you experience nausea, vomiting, diarrhea, confusion, dizziness, drowsiness, headache, dizziness, cold or clammy skin, or fast heartbeat, or other symptoms, contact your doctor. It may be necessary to check your blood levels more often or to adjust the dose of one or both medicines.Your healthcare professionals (e.g. doctor or pharmacist) may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
1.Felbatrol (felbamate) US prescribing information. MedPoint Pharmaceuticals Inc. August 27, 2012.
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