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 arise at high doses. Methylphenidate (or methylphenidylacetate hydrochloride): a stimulant located in certain brand name drugs including: Ritalin Nicotine: Existing in t... https://gloriaz059boa0.wikicommunication.com/user