Some facts about testosterone cypionate include that it is designed for men whose bodies do not produce enough testosterone naturally, according to WebMD. It can cause nausea and headaches as well as changes in skin color or sexual interest.
Testosterone cypionate is typically administered through an injection once every one to four weeks, explains WebMD. Generally, doctors recommend the injection be made into the buttocks. Testosterone should not be injected into a vein. Since it is a supplement for a chemical that the body is normally designed to automatically produce, ceasing to take testosterone cypionate after an extended time may cause withdrawal symptoms to occur. The body may cease producing its own testosterone entirely, leading to tiredness, depression and a sensation of weakness if the drug is no longer administered.
Some individuals increase their dosages or frequency of administration of testosterone cypionate for its muscle-enhancing effects, an activity WebMD contraindicates. This kind of behavior puts individuals at higher risk for heart disease, liver disease, stroke, ruptured tendons or ligaments, and improper bone development in adolescents. Testosterone cypionate is known to interact with blood-thinning agents such as warfarin, and it may interfere with laboratory tests such as thyroid tests, possibly producing false results.