MUST NOT be used in pregnancy - lenalidomide causes severe birth defects. Both women and men must use effective contraception before, during and after treatment as directed, and it must not be used while breastfeeding. It can lower blood cell counts (raising the risk of infection, bleeding and anaemia) and increase the risk of blood clots, so report fever, bruising, breathlessness or leg swelling promptly. Tell your doctor about kidney or liver problems and all other medicines. Do not donate blood during treatment. Store below 30°C out of reach of children. 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.