Rifampicin Isoniazid Pyrazinamide Ethambutol HCl (Quadmax) 150mg/75mg/400mg/275mg Film-Coated Tablets are a combination medication used to treat active tuberculosis (TB). Each tablet contains four antibiotics that work together to kill TB-causing bacteria and prevent their growth. The pack contains 80 tablets, typically prescribed as part of the intensive phase of TB treatment.