Do not use PEMMET 500MG INJECTION if you are allergic to any of its components, pregnant or breastfeeding, or if you have taken or plan to receive yellow fever vaccination. Inform the doctor if you have/had heart disease, kidney problems, have had or are going to have radiation therapy, or have accumulation of fluid around the lungs. Seek immediate medical attention if you experience symptoms of fever or infection; pain, sores, redness or swelling in the mouth; chest pain or a fast heartbeat; allergic reaction (skin rash, burning/prickling sensation, or fever); Stevens-Johnson Syndrome or toxic epidermal necrolysis (severe rash, itching, or blistering); low haemoglobin levels (tiredness, feeling faint, paleness, or becoming easily breathless); low platelet count (bleeding from gums/nose/mouth, bleeding that does not stop, unexpected bruising, reddish or pinkish urine); or blood clot in the blood vessels of the lungs (sudden breathlessness, cough with bloody sputum or intense chest pain).