Medicine Name: Eleftha 440mg Injection. Composition: Trastuzumab (440mg). Side Effects: Anemia low number of red blood cells Chills Common cold Cough Decreased blood cells red cells white cells and platelets Diarrhea Fatigue Fever Headache Heart failure Infection Insomnia difficulty in sleeping Mucosal inflammation Nausea Rash Stomatitis Inflammation of the mouth Taste change Upper respiratory tract infection Weight loss.