The effect, as well as the duration of action of the aphetamine that you can buy here depends on the dosage and frequency of consumption. An average dose is between 10-25mg. Dose information here refers to pure speed. The effect of amphetamine starts after about 30 minutes when taken orally, after a few minutes when consumed nasally and can last for 6-12 hours. As a rule, oral consumption means a longer duration of action. The effect of speed is mostly perceived as an excited state with increased alertness, light-heartedness and a feeling of increased efficiency and concentration. Furthermore, there may be an increased urge to move and talk (Laberflash). Hunger, thirst and tiredness are suppressed and the sensation of pain is reduced. Body and mind are stimulated as if the organism had to face an acute dangerous situation. One speaks of the so-called “fight or flight” reaction.