hi Dear thanks for the question, you are such a wonderful person , your concern for your friend is really appreciable , I will try to help you understand a bit about JMS,, Juvenile Myoclonic Epilepsy Symptoms,is a form of epilepsy that starts in childhood or adolescence. cause is unknown, but expel people who are on long term anticonvulsant can develop this type of seizures ,people with JMS disorder experience muscle twitching or jerking.Myoclonic seizures usually involve the neck, shoulders, and upper arms. the symptoms may appear latter in life too..treatment option .Juvenile myoclonic epilepsy (JME) is characterized by excellent response to treatment, Lifestyle modification in needed ; it should include recommendations on avoidance of common triggers such as sleep deprivation and alcohol excess and emphasis on the importance of compliance with medication. The drug of first choice in the treatment of JME is sodium valproate, response rate of up to 80%. Valproate should be avoided in women of childbearing age because of significantly increased risks of fetal malformations and neurodevelopmental delay. so this information you can share with your friend. after marriage or before conceiving please tell your friend to tell her future concerning physician about all the. medication she has been taking. valproate can be tapper off ,and can be stop eventually if symptoms are gone. take care.