Male orgasm and ejaculation are inhibited. Sex can last for a long time. Make sure that you have plenty of condoms, just in case. Most people who suffer from amphetamine psychosis find that it wears off as the drug does. As they come down, they can distinguish between their delusions and what's really happening.
Regular use can cause long-term or even permanent psychological problems.
Amphetamines don't cause physical dependence but there is a risk of psychological dependence. Chopping out a line on Monday to 'sort your head out' after a heavy weekend will only make Tuesday even more difficult to cope with. Amphetamines are a Class B drug. Other Class B drugs are Cannabis and Barbiturates. If found guilty of possession of a Class B drug for personal use and sentenced in a Magistrates court, the offence carries a maximum sentence of three months imprisonment and a fine of two thousand five hundred pounds.