• Basic Info
• Top Questions
• Clinical Info
• Interactions

There may be other drugs that can interact with HCG. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Stop using HCG and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these signs of a blood clot: pain, warmth, redness, numbness, or tingling in your arm or leg; confusion, extreme dizziness, or severe headache.

Some women using this medicine have developed a condition called ovarian hyperstimulation syndrome (OHSS), especially after the first treatment cycle. OHSS can be a life-threatening condition. Call your doctor right away if you have any of the following symptoms of OHSS:

• severe pelvic pain;

• swelling of the hands or legs;

• stomach pain and swelling;

• shortness of breath;

• weight gain;

• diarrhea;

• nausea or vomiting; or

• urinating less than normal.

This medication can cause early puberty in young boys. Call your doctor if a boy using this medicine shows early signs of puberty, such as a deepened voice, pubic hair growth, and increased acne or sweating.

Less serious side effects may include:

• headache;

• feeling restless or irritable;

• mild swelling or water weight gain;

• depression;

• breast tenderness or swelling; or

• pain, swelling, or irritation where the injection is given.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.