Amphetamines can affect the cardiovascular system and cause angina, hypertension, arrhythmias, syncope and maculopathy. Myocardial infarction and cardiomyopathy are the dangerous side effects of amphetamines which can happen at high doses. Mephedrone can be a synthetic stimulant drug of the amphetamine and cathinone classes. Slang names include drone[134] and MCAT.[135] https://mahatmac689tng4.iamthewiki.com/user