There are many different types of drugs in sport and different sports will allow some and other will ban them. An example of this is beta blockers these drugs slow down the heart rate and are banned in archery and shooting. The reason for this is because it also stops the hands from shaking. There are 5 different types of doping classes alongside blood doping. Blood doping is when they take the blood outside of the body and then put in back this allows the blood to take in more oxygen and is banned. Blood doping can also cause kidney and heart failure so is very dangerous.
The 5 types of doping classes are: stimulants, diuretics, Anabolic agents, Narcotic analgesics and peptides and hormones. Simulants make the body more alert and hide fatigue but it can cause heart disease and can be addictive. Diuretics remove fluid from the body this can help in weight categorised sports but can also help eliminate other toxins from the body. A side effect of this is they can cause severe dehydration and is especially dangerous when participating in sport. Anabolic agents such as steroids help athletes to build more muscles and to allow them to train harder. Anabolic agents can cause increased aggression and kidney damage. Narcotics can be very addictive and can also mask pains that can be caused by injury or fatigue, this can then make the issue worse in the long run. Peptides and hormones have two main categories: EPO (Erythropoietin) red blood cells gives more energy and HGH (Human Growth Hormone) these help build muscle. EPO increase the risk of stroke and heart problems where as HGH can cause abnormal growth, diabetes and many more.
Below is a link to world anti-doping agency page: