How long have you been on the medication? As far as I understand it is something you should relate to your doctor/psychiatrist as a concern - my doctor told me to call him whenever I needed to if I had concerns with my meds (and then last week went on vacation...).
I am taking Escitalopram (Lexapro as I think better known), and have dry mouth all the time, often restless arms/hands, sometimes legs. But I've almost always been calm and have remained so with this medication.
I am sorry I can't say with your exact medication - it makes me wonder how doctors decide which meds to put people on - and hope somebody else here can help more. But please do note to your doctor your concerns.