Patient/caregiver was educated on contraindications for using Phenytoin as follows:

• Do not take Phenytoin, if you ever manifested any allergic response to intake of Phenytoin. Discuss your history of allergic response to this medication with your physician, without fail.
• In the event of any current manifestations of any allergic response with this medication, report it to your physician or other health care personnel immediately, to check regarding your safety with continuing on intake of this medication.
• Phenytoin is extensively metabolized in the liver and the inactive metabolites are excreted in the feces and urine. If liver function is deficient, the metabolism of phenytoin can be compromised. This can lead to increased blood levels of the medication for longer periods of time, resulting in increased risk for side-effects and consequent toxicity. So, phenytoin must be used with caution and dose adjustments, with periodical monitoring for liver functions and development of any toxic symptoms.