"i took 3mg my first night. i was so groggy, i don&#039;t remember anything from about two hours before bed and i had the worst time waking up this am. i was so groggy and cranky and again can barely remember anything until i started finally getting up and around. this is super strong, i took 3mg, but for someone who goes days without sleeping, i&#039;ll take these side effects over no sleep any day. i am taking the generic. at least give it a try. i have to for insurance purposes and i&#039;m pretty glad i did. my doctor says the grogginess will fade after a while."