Penicillin v potassium

What is Penicillin v potassium?

Phenoxymethylpenicillin, commonly known as penicillin V, is an antibiotic useful for the treatment of a number of bacterial infections. It is a penicillin that is orally active. It is less active than benzylpenicillin (penicillin G) against Gram-negative bacteria. Phenoxymethylpenicillin is more acid-stable than benzylpenicillin, which allows it to be given orally. It exerts a bactericidal action against penicillin-sensitive microorganisms during the stage of active multiplication. It acts by inhibiting the biosynthesis of cell-wall peptidoglycan. It is not active against beta-lactamase-producing bacteria, which include many strains of Staphylococci.

Phenoxymethylpenicillin has a range of antimicrobial activity against Gram-positive bacteria that is similar to that of benzylpenicillin and a similar mode of action, but it is substantially less active than benzylpenicillin against Gram-negative bacteria.

Phenoxymethylpenicillin is usually used only for the treatment of mild to moderate infections, and not for severe or deep-seated infections since absorption can be unpredictable. Except for the treatment or prevention of infection with Streptococcus pyogenes (which is uniformly sensitive to penicillin), therapy should be guided by bacteriological studies (including sensitivity tests) and by clinical response. Patients treated initially with parenteral benzylpenicillin may continue oral treatment with phenoxymethylpenicillin once a satisfactory clinical response has been obtained.

For prophylaxis against rheumatic fever, phenoxymethylpenicillin given by mouth twice a day is used as an alternative to injections of benzathine penicillin given every two weeks. It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system.

Questions and answers on "Penicillin v potassium"

I had very strong stomach pains Thursday and Friday nights. Now I am extremely tired, thirsty, and weak. I at have some sort on my stomach. I am...

doctor1 MD

Brief Answer:
Request for clarifications. Need more information

Detailed Answer:
Hello,
Thank you for your query.
I'm Dr. Shuba Hariprasad and will...

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I have mitral valve prolapsed and aerotic valve regulation ... I feel heart beat skip sometimes and panik attach twice or thrice in month... I feel...

doctor1 MD

Brief Answer:
There is no risk to your condition as long as you take the medication

Detailed Answer:
Dear Prateek, Hi
Good morning!

I really...

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I've been prescribed pencillin vk to be taken twice a day for 30 days for a bad oral infection with tooth decay, pain in the roof of the mouth, jaw...

doctor1 MD

Brief Answer:
Antibiotics-alternative to penicillin

Detailed Answer:
Since you had some reaction (twitching etc) to penicillin (bicillin IM)and...

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Recent questions on  Penicillin v potassium

doctor1 MD

I had very strong stomach pains Thursday and Friday nights. Now I am extremely tired, thirsty, and weak. I at have some sort on my stomach. I am...

doctor1 MD

I've been prescribed pencillin vk to be taken twice a day for 30 days for a bad oral infection with tooth decay, pain in the roof of the mouth, jaw...

doctor1 MD

I have mitral valve prolapsed and aerotic valve regulation ... I feel heart beat skip sometimes and panik attach twice or thrice in month... I feel...

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