Question 1

What is Benzathine benzylpenicillin used for?

Accepted Answer

Syphilis, rheumatic fever prevention, sore throat caused by bacteria (strep throat), skin infections like yaws, tonsillitis that keeps coming back

Question 2

How do you take Benzathine benzylpenicillin?

Accepted Answer

This is not a tablet — it is given as an injection deep into the buttock muscle by a nurse or doctor. For adults, the usual dose is 1.2 million units (one injection) for conditions like syphilis or rheumatic fever prevention. Your doctor will decide if you need a single injection or repeated doses every 2-4 weeks depending on your condition. Never try to inject yourself at home.

Question 3

What are the side effects of Benzathine benzylpenicillin?

Accepted Answer

Pain and swelling at the injection site, mild fever or body aches after the injection, skin rash or itching, diarrhea or stomach upset

Question 4

Who should not take Benzathine benzylpenicillin?

Accepted Answer

People who are allergic to penicillin or any penicillin-type antibiotic should never take this drug — a serious allergic reaction can be fatal. People with a history of severe allergic reactions to cephalosporin antibiotics should also be cautious. Tell your doctor if you have kidney problems or a history of asthma or eczema.

Question 5

Is Benzathine benzylpenicillin safe during pregnancy?

Accepted Answer

Benzathine benzylpenicillin is generally considered safe during pregnancy and breastfeeding — in fact, it is the recommended treatment for syphilis in pregnant women — but always let your doctor know you are pregnant before receiving it.

Benzathine benzylpenicillin

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