Penicillin V Potassium

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Nov 10, 2023

Pros & Cons


Penicillin V Potassium Pros and Cons

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  • Penicillin V potassium is the preferred antibiotic for treating streptococcal disease (strep throat infections). 
  • This antibiotic can prevent complications associated with streptococcal infections, such as rheumatic fever and acquired valvular heart disease.
  • It is available in a lower-cost generic version.
  • It comes in tablet and oral solution form for ease of administration.
  • It can be used to prevent infection (bacterial endocarditis) in people with heart valve problems before they undergo dental procedures.

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  • Penicillin V potassium is not effective against all bacteria. 
  • You may not be able to take this medicine if you are allergic to other penicillins or cephalosporins.
  • You need to take this medicine 2-4 times a day.