Depends on what study u r trying to get into
Depends . if you get into the healthy adult they want minimal meds , no smoking, no illicit drugs and they do test. They might also stop you from caffeine about a week before and no alcohol about a month before. Like i said, it varies.
Once logged into their website and you've selected the desired city, based on type of study it's a breakdown of a required weight, your age and usually you must be drug/alcohol free;also helps if your tobacco free!!!
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