What are the adverse reactions of clindamycin injection?

In general, adverse reactions to clindamycin injection may include nausea and vomiting, skin itching, hypotension, phlebitis, and pseudomembranous colitis. Specific details are as follows:

1. Nausea and Vomiting

The liquid in clindamycin injection enters the body through the bloodstream. As it passes through the gastrointestinal tract, it may irritate the gastrointestinal mucosa, leading to adverse reactions such as nausea, vomiting, and decreased appetite.

2. Skin Itching

If a patient is allergic to components of clindamycin injection, an allergic reaction may occur after administration, resulting in redness, itching, or even rashes on the skin.

3. Hypotension

Rapid intravenous administration of high-dose clindamycin injection may cause hypotension, arrhythmia, and electrocardiographic changes. In rare cases, it may lead to cardiac arrest or respiratory cessation.

4. Phlebitis

Pain, induration, or sterile abscess may occur at the injection site. Prolonged intravenous administration may lead to the development of phlebitis.

5. Pseudomembranous Colitis

Pseudomembranous colitis is an acute fibrinous exudative inflammation primarily affecting the colon and small intestine. Use of clindamycin injection may disrupt the normal intestinal flora, allowing overgrowth of *Clostridium difficile*, which produces toxins that can cause this condition.

In addition, other possible adverse reactions include abdominal pain, diarrhea, and transient elevation of alkaline phosphatase. During treatment, patients must strictly follow medical instructions and avoid concomitant use with other drugs to prevent the development of cross-resistance.