Fertigyn HP 5000 Injection is used in the treatment of infertility in women. It is also helpful in the treatment of male hypogonadism (delayed puberty, and low sperm count). It works by releasing the eggs from the ovary in women and by increasing the testosterone level in men. Fertigyn HP 5000 Injection is given as an injection under the supervision of a doctor. Your doctor will decide the right time to take the injection, so always follow your doctor's advice. The dose and how often you take it depends on what you are taking it for. You should take this medicine for as long as it is prescribed for you. The most common side effects of this medicine include injection site pain, headache, fatigue, and depression. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. Male might notice acne, or sweating and deepening of the voice. If you experience dizziness, faint, abdominal pain, and vomiting after getting the injection, inform your doctor immediately.