Phentoin

Side Effects of Phentoin are Dizziness, Insomnia (difficulty in sleeping), Vertigo, Nystagmus (involuntary eye movement), Peripheral neuropathy (tingling and numbness of feet and hand), Skin rash, Softening of bones, Increased glucose level in blood, Megaloblastic anemia, Gingival hyperplasia, Excessive hair growth on face, Hypotension (low blood pressure), Abnormality of voluntary movements, Arrhythmia (irregular heartbeats), Encephalopathy, Psychosis, Hyperkinesia, Hypersensitivity, Stevens-Johnson syndrome, Cardiovascular collapse, Liver failure, Blood circulation disorder, Lymphatic system abnormalities.