This video demonstrates the directions to mix a 5,000 unit vial of lyophilized human chorionic gonadotropin (HCG) with a bacteriostatic solution. Our clinic receives many questions from both our Six Common hCG Trigger Shot Mistakes to Avoid Pregnyl HCG Trigger Patient Instructions UH Fertility Center University Hospitals University Hospitals NOVAREL (chorionic gonadotropin) for injection, for intramuscular use Initial U.S. Approval: 1974