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. HCG 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 It should be use with caution in breastfeeding or nursing mother. Some women using human chorionic gonadotropin (HCG) have developed a condition called ovarian hyperstimulation syndrome (OHSS), especially after the first treatment cycle. OHSS can be a life-threatening condition. Some products that may interact with this drug include, Carbamazepine,Phenytoin,Warfarin,Rifampicin,Testosterone,Amphetamine,Antacids containing calcium/magnesium/aluminum.