Clindamycin
Clindamycin is a lincosamide antibiotic. It binds the bacterial ribosome and blocks protein synthesis, which stops susceptible bacteria from multiplying. It is used for bacterial infections, including infections of the skin and soft tissue.
It is swallowed upright with plenty of water, because a capsule that lodges in the oesophagus can irritate it. Clindamycin suppresses normal gut flora as well as the target bacteria, so probiotics are usually spaced a few hours away from it rather than swallowed at the same time. The full course is finished as prescribed, because stopping early leaves the less susceptible bacteria behind. Liver enzymes such as ALT can rise during treatment, so they are sometimes checked.
Severe, watery or bloody diarrhoea, during the course or in the weeks after it ends, is the classic sign of antibiotic-associated colitis and is a reason to see a doctor rather than treat it at home. Yellowing of the skin or eyes, marked abdominal pain, or a rash with swelling also warrant medical assessment.
Reference information, not medical advice. Discuss any change with your doctor.