Penicillin V: Side Effects, Uses & Monitoring
Penicillin V potassium tablets and penicillin V potassium for oral solution are indicated in the treatment of mild to moderately severe infections due to penicillin G-sensitive microorganisms.
- Data source
- FDA labeling via NIH DailyMed (label b0744674…)
- Label version
- current
- Last reviewed
- 2026
Reported adverse reactions
Reactions listed in current FDA labeling, with the highest frequency reported across summarized placebo-controlled trials.
No structured frequency data available in current labeling. Consult the official label.
Labeled uses (from FDA prescribing information)
Penicillin V potassium tablets and penicillin V potassium for oral solution are indicated in the treatment of mild to moderately severe infections due to penicillin G-sensitive microorganisms. Therapy should be guided by bacteriological studies (including sensitivity tests) and by clinical response. NOTE: Severe pneumonia, empyema, bacteremia, pericarditis, meningitis, and arthritis should not be treated with penicillin V during the acute stage. Indicated surgical procedures should be performed. The following infections will usually respond to adequate dosage of penicillin V. Streptococcal infections (without bacteremia). Mild-to-moderate infections of the upper respiratory tract, scarlet fever, and mild erysipelas. NOTE: Streptococci in groups A, C, G, H, L, and M are very sensitive to penicillin. Other groups, including group D (enterococcus), are resistant. Pneumococcal infections . Mild to moderately severe infections of the respiratory tract. Staphylococcal infections —penicillin G-sensitive. Mild infections of the skin and soft tissues. NOTE: Reports indicate an increasing number of strains of staphylococci resistant to penicillin G, emphasizing the need for culture and sensi…
Conditions associated with Penicillin V in labeling
Coronary Artery Disease
Narrowing of the coronary arteries by plaque, reducing blood flow to the heart muscle and causing chest pain, ...
Endocarditis
Infection of the inner lining of the heart chambers and valves, which can cause fever, fatigue, and heart murm...
Meningitis
Inflammation of the membranes around the brain and spinal cord, usually caused by infection. Can be life-threa...
Pneumonia
Infection of the lung tissue that can cause cough, fever, chills, and difficulty breathing. Can be caused by b...
Rheumatic fever
Rheumatic fever is a medical condition that may be associated with various symptoms and signs....
Frequently Asked Questions
What is Penicillin V used for?
FDA labeling lists the approved uses shown above under "Labeled uses." This summary is informational; only a qualified prescriber can determine whether a medication is appropriate for you.
What are the most commonly reported side effects of Penicillin V?
Current labeling for this ingredient does not include a structured frequency table that we can reproduce. Review the official label linked below.
Does Penicillin V require lab monitoring?
Monitoring needs vary. Ask your healthcare provider whether any lab tests apply while taking Penicillin V.
Where does this information come from?
All clinical facts on this page were extracted from the current FDA-registered product labeling for this ingredient, published by manufacturers through NIH DailyMed. See the source link below.
Medical disclaimer: Educational content extracted from public FDA labeling. Not medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.