I took Risperidone for only two days, then stopped due to facial numbness, tingling, dry mouth, dizziness, difficulty swallowing. 17 days later, I had a partial seizure which has resolved on Keppra, but can it happen again and was it due to the Risperidone? Would this have happened on Abilify? I am still taking Keppra.How long after stopping Risperidone can side effects occur?