Erythromycin tablets are a commonly used anti-infective drug that is an antibiotic is a macrolide. Clinically it is mainly the treatment of gram-positive cocci or negative bacilli and negative cocci. In addition to these also some other bacteria such as Chlamydia, Mycoplasma and Legionella are clinically indicated for the treatment of these aspects of bacteria. Erythromycin tablets produce few allergic reactions to the organism, such as penicillin and cephalosporin antibiotics. When the organism is allergic to these antibiotics, erythromycin is used instead. Erythromycin is irritating to the gastrointestinal tract and has a gastrointestinal reaction after taking it, so it is often taken after meals. Erythromycin tablets are an antibacterial preparation with stronger antibacterial effect than penicillin and cephalosporin antibiotics.