original: the most common side effects of taking methylphenidate are nervousness and insomnia .
simplifications: the most common side effects of taking methylphenidate are nervousness and insomnia . being unable to sleep and nervousness are normal things may happen when you are taking methylphenidate . the most common side effects of taking methylphenidate are feeling nervous and not being able to sleep . the most common side effects of taking methylphenidate are nervousness and insomnia . the most common side effects of taking methylphenidate are nervousness and lack of sleep . the most common side effects of taking methylphenidate are nervousness and lack of sleep . the most commom side effects of taking methylphenidate are nervousness and insomnia . nervousness and insomnia is the most common side effect of taking methylphenidate .