Jabberwocky
Frumious Bandersnatch
That’s debatable:Meth in general is extremely bioavailable, with over 90% absorption into the body via every ROA.
Results: Methamphetamine was well absorbed after smoking or intranasal administration, with bioavailabilities of 79% after intranasal administration and 67% of the estimated delivered dose or 37.4% of the absolute (pipe) dose after smoking.

The bioavailability of intranasal and smoked methamphetamine - PubMed
Intranasal and smoked methamphetamine are well absorbed. Although intranasal or smoked routes may decrease the risk of transmission of blood-borne diseases, exposure to methamphetamine and the possibility of drug-related complications remain substantial.
