Used only under specialist supervision as part of a monitored treatment plan. In fertility treatment, report severe abdominal pain, bloating, nausea, rapid weight gain or breathlessness. Possible ovarian hyperstimulation, which needs urgent assessment. Tell your specialist about any history of hormone-sensitive cancers, blood clots, or heart, kidney or thyroid problems. Multiple pregnancy is more likely with fertility treatment. Note HCG is misused in some weight-loss and bodybuilding contexts. It is not a weight-loss treatment and is banned in sport. Use only as prescribed and monitored. This product information is for general guidance only and does not replace professional medical advice. Always consult a qualified healthcare provider before starting any new medication or supplement. Keep all medicines out of reach of children.