Clindamycin: Uses, Dosage & Side Effects

Instructor: Yolanda Williams

Yolanda has taught college Psychology and Ethics, and has a doctorate of philosophy in counselor education and supervision.

Clindamycin is an antibiotic that is used to treat several bacterial infections. Learn more about how Clindamycin is used, its dosage, and side effects. Then test your knowledge with a quiz.

What is Clindamycin: Definition and Uses

While out on a hiking trip, Tracy cuts her leg on a deteriorating piece of wood. Within a few hours, her leg swells, causing her to finish her hike early. The area around Tracy's cut turns red and is painful to touch. A few days later, she notices that her cut isn't healing, but rather is leaking pus. Concerned, Tracy visits her doctor and is diagnosed with methicillin-resistant Staphylococcus aureus (MRSA). This is a staph infection that is resistant to many antibiotics, making it hard to treat and more dangerous than other infections. Since MRSA is resistant to penicillin and other antibiotics, Tracy's doctor prescribes her clindamycin.

So what exactly is clindamycin? It is an antibiotic that is used as a treatment for serious bacterial infections, such as MRSA, infections of the blood, and infections of the uterus. Using clindamycin is associated with an increased risk of colitis, a life-threatening condition where the large intestines become inflamed. Therefore, clindamycin is only used to treat infections that cannot be treated by other less toxic medications, such as penicillin or erythromycin. It is also commonly used in treating patients who are allergic to penicillin.

Clindamycin is classified as a lincomycin antibiotic, which works by inhibiting or reducing the bacteria's growth. It is important to note that Clindamycin does not kill viruses; it treats bacterial infections only. Clindamycin is also know by its brand name, Cleocin.


Adults who have serious bacterial infections are generally given a prescription to take between 150 and 450 milligrams of clindamycin every six hours, depending on how severe the infection is. To treat her MRSA, Tracy is prescribed 300 milligrams every six hours. Children are prescribed between 8 and 20 milligrams of Clindamycin per day, depending on how severe the infection is. This dosage is evenly broken up into three or four individual doses.

Side Effects

After taking clindamycin, Tracy experiences some of the common side effects such as nausea, vomiting, and pain in her stomach. Other common side effects include:

  • Mild skin rash
  • Diarrhea
  • Discharge or itching in the vagina.

Less common side effects include:

To unlock this lesson you must be a Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use

Become a member and start learning now.
Become a Member  Back
What teachers are saying about
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account