Bulkamid® is a soft hydrogel, also known as a urethral bulking agent, that acts as a barrier to prevent urine leakage. Consisting of 97.5% water, the hydrogel is natural and safe for the body. Delivered to the urethral opening by injection, Bulkamid® provides additional volume to the urethra (the tube that carries urinary from the bladder to the outside of the body) to help prevent urine leakage from the bladder. Bulkamed® is approved for use in women.