Drug Interaction Report

Using fosphenytoin together with PHENobarbital may affect your seizure control. You may need dose adjustments or special tests in order to safely take both medications together. This combination may alter fosphenytoin levels. You should notify your doctor if you have a loss of seizure control or possible symptoms such as nausea, vomiting, tremors, loss of muscle coordination, lethargy, slurred speech, visual disturbances, or changes in mental status. It is important that you tell your healthcare provider about all other medications that you are using including vitamins and herbs. Do not stop using your medications without first talking to your doctor.

Ask your doctor before using PHENobarbital together with ethanol (alcohol), this can add to dizziness, drowsiness and other side effects of PHENobarbital. Be careful if you drive or do activities that require you to be awake and alert. Talk with your doctor before using any medications together, or drinking alcohol with PHENobarbital. 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.