The side effects of drugs vary depending on the type. Someone high on stimulants may experience an increase in energy that is cause by the drugs speeding up the body’s metabolism and heart rate. Since these drug increase the heart rate, an increase in blood pressure can be a related side effect. However, someone who uses depressants can feel relaxed and experience fatigue.
It’s not only the type of drug that dictates possible side effects. Everyone is different, so you may not experience the same side effects as your friend does. It’s also common for side effects to vary depending on your age, weight, gender and general health.