Substances
Amphetamine

A very popular stimulant available on prescription (for treating ADHS and other conditions) and black markets as a white powder or paste (often referred to as "Speed"). Produces mild euphoria and feelings of an abundance of energy.
Harm potential
moderately addictive with a high potential for abuse
Source: PsychonautWiki
Dosage
This dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.
oral
light: 10-20mg
common: 20-40mg
strong: 40-70mg
insufflated
light: 15-25mg
common: 25-40mg
strong: 40-75mg
Source: PsychonautWiki
View dosage charts in the KnowDrugs app
Effects
- Possible effects vary from increased performance or willingness to take risks, suppressed hunger and need for sleep or suppressed sensitivity to pain. A sense of well-being, contentedness, relaxation, euphoria, compulsion to talk, increased alertness and increased self-confidence are also possible. Amphetamine is effective even in small quantities. The effect depends, among other things, on the duration of consumption, the dose, purity and the expectations of the user.
- Short-term side effects: Trembling, restlessness, disturbed sleep, increased pulse and blood pressure, increased body temperature, widened pupils, nervousness, irritability and loss of appetite may occur. Anxiety, feelings of paranoia (e.g. persecution complex), burning of the nasal mucous membranes when the drug is snorted, headaches, nausea, stomach-ache and convulsions are also possible. When the effects wear off, exhaustion, depression, lack of concentration, a great desire to sleep and ravenous hunger may occur. These side effects may last for several days.
- Long-term side effects: When the drug is snorted, the nasal mucous membranes and the nasal septum may be damaged, as may the gastric mucous membranes when the drug is swallowed. Constant restlessness, sleep and circulatory disorders, paranoia and even amphetamine psychosis may occur. Weight loss (due to suppression of hunger and increased energy consumption), inflammation of the skin (Speed rash) and stomach-aches are also possible. With regular use: development of tolerance and onset of addiction, i.e. the dose has to be increased in order to achieve the same effect. The development of psychological dependency is possible.
Source: Drugscouts
Interactions
View all interactions in the KnowDrugs app
Tolerance
full
develops with prolonged and repeated use
half
3 - 7 days
zero
1 - 2 weeks
Source: PsychonautWiki
Marquis
Strong reddish orange - Dark reddish brown
Source: Tripsit.me
Proof time
blood
8 - 36 hours
urine
1 - 4 days
Source: Drugscouts