how long do effects of methamphetamines last?
How long does meth effects last? Methamphetamines or Meth effects can last as long as 3 days or as little as 6 hours depending mostly on how much but also how its done.Smoking meth out of a dope pipe usually gives you a more intense shorter high where as snorting it or eating it gives u a steady long high. hit of crystal meth lasts longer than a hit of cocaine -- like 40 minutes, maybe. Once you completely stop taking hits of it, you'll be able to feel the effects for the next â¦ 18 to 24 hours, but you won't be high on it.