Asterisk 150mg Tablet is used to treat respiratory tract, gastrointestinal, skin and soft tissue infections. It contains Roxithromycin, which stops the growth of infection casuing bacteria. In some cases, you may experience certain common side effects such as nausea, headache, dizziness, stomach upset, diarrhoea, rash and stomach ache. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.