peractam injection is an antibiotic for treating bacterial and respiratory infections. peractam is a pharmaceutical compound that belongs to the cephalosporins that are effective in treating bacterial infections. peractam is an antibiotic for treating upper and lower respiratory tract infections, and is also used to treat bacterial infections of the skin. peractam ampoules are available in powder form for intramuscular or intravenous injection, which is used in acute bacterial infections.