Anticonvulsants, Hydantoin (Systemic)

Additional Information

Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although these uses are not included in product labeling, phenytoin is used in certain patients with the following medical conditions:

• Cardiac arrhythmias (changes in your heart rhythm) caused by digitalis medicine
• Myotonia congenita or
• Myotonic muscular dystrophy or
• Neuromyotonia (certain muscle disorders)
• Paroxysmal choreoathetosis (certain movement disorders)
• Tricyclic antidepressant poisoning
• Trigeminal neuralgia (tic douloureux)

Other than the above information, there is no additional information relating to proper use, precautions, or side effects for these uses.