Dunno if you're gonna get booted or if I'm gonna get booted for posting this and what not...but anyway...taken orally, something in liquid suspension would have somewhat of a faster onset of action. However, with the question of hydrotuss vs some sort of tablet containing
hydrocodone, it also depends on how much hydrocodone is in each "serving" of hydrotuss vs each hydrocodone tab. Also depends on what else is in the hydrotuss, most cough medications containing hydrocodone or
codeine also contain various amounts of antihistamines like chlorpheniramine or
promethazine which could compound the effects of the hydrocodone. Best not to mess around too much with opiates/opioids though.