SN instructed patient / caregiver regarding medication Dilantin. Explained that Dilantin is an anticonvulsant and is used to control seizures. SN instructed patient / caregiver that the side effects of this medication includes headache, nausea, vomiting, constipation, dizziness, drowsiness, insomnia and nervousness, swelling of gums may also occur. SN instructed to call physician ( MD ) if patient experiences unusual eye movement, loss of coordination, slurred speech, confusion, blurred vision, or tingling of hands and feet. SN instructed patient / caregiver that blood draws are usually done regularly to make sure that the medication in the body is within therapeutic level.