I forgot to renew my prescription of mysoline. I am currently taking 200 mg at bedtime. Just found out that I only have 50mg for tonight; will I be ok till tomorrow night? ## It would be best to take your normal prescribed dosage. If you go to your pharmacy, they will usually give you a couple of doses to tide you over, until you pick up a full refill. The FDA lists the typical side effects of this medication as possibly including nausea, dizziness, headache, mood changes, and weight gain. Is there anything else I can help with?