Orally, Heroin has a bioavailability of between ~25% and ~65%, depending on dose and tolerance, whereas Morphine has a bioavailability of 20-40%, making Heroin the more efficient of the pair.
Orally, Heroin has a bioavailability of between ~25% and ~65%, depending on dose and tolerance, whereas Morphine has a bioavailability of 20-40%, making Heroin the more efficient of the pair.