What is sold as Ecstasy today is typically a toxic concoction of a variety of substances such as ephedrine which is a stimulant, dextromethorphan which is a cough suppressant, ketamine which is an anesthetic or even caffeine, cocaine and methamphetamine.
Women and low-body-weight males have a lesser capacity to break alcohol down in the same amount of time as a heavier male or female, resulting in higher blood alcohol concentration.
Rocks of crack cocaine are typically .1 to .5 grams and contain between 75 percent and 90 percent pure cocaine.
Individuals who take beta blockers to manage cardiac arrhythmias can develop dependence to these drugs and may experience withdrawal syndrome if they suddenly stop taking them.