what gets you high is Dextromethorphan, a cough surppresent and the main active ingredient in most cough syrups. At higher doses, say around 300mg(about one bottle), it has euphoric, hallucinogenic and dissociative effects. an individual would want to ensure no tylenol were listed in the ingredients.
down the rabbit hole if you're willing to follow it...might make it possible to...explore certain things...prolonged use might have a more...suppresant quality...not reccomended by the doc