Penicillin V

Generic Name: Penicillin V

  • What is Penicillin V?

    Penicillin V is an antibiotic used to treat and/or prevent infections, such as dental, heart, middle ear, skin, and respiratory tract infections.

  • What is the most important information I should know about Penicillin V?

    Like all antibiotics, Penicillin V works only against bacteria. It will not cure an infection caused by a virus, such as the common cold or flu.

    If you are allergic to either penicillin or cephalosporin antibiotics in any form, consult your doctor before taking Penicillin V. There is a possibility that you are allergic to this medication and if a reaction occurs, it could be extremely severe. If you take the drug and feel signs of an allergic reaction, stop taking it and contact your doctor immediately.

    Long-term or repeated use of Penicillin V may result in a secondary infection caused by bacteria that is not susceptible to this drug. Tell your doctor if signs of a secondary infection occur. Your medicine may need to be changed to treat this.

    Mild diarrhea is common with antibiotic use. However, a more serious form of diarrhea, although rare, may occur. Contact your doctor right away if you experience stomach pain or cramps, severe diarrhea, or bloody stools. Do not treat the diarrhea without first checking with your doctor.

  • Who should not take Penicillin V?

    Do not take Penicillin V if you are allergic to any of its ingredients, other penicillins, or cephalosporin antibiotics.

  • What should I tell my doctor before I take the first dose of Penicillin V?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Penicillin V. Also, talk to your doctor about your complete medical history, especially if you have asthma; colitis (inflammation of the lower bowel); kidney or liver disease; diarrhea or a stomach infection (especially in children ≤9 years). Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults and children ≥12 years: Your doctor will prescribe the appropriate dose for you based on the type and severity of your infection.

  • How should I take Penicillin V?

    Penicillin V may be taken on a full or empty stomach, though it is better absorbed when the stomach is empty.

    Doses of the oral solution of Penicillin V should be measured with a calibrated measuring spoon. Shake the solution well before using it.

    It is important to take the full dosage schedule of Penicillin V, even if you are feeling better in a few days. Not completing the full dosage schedule may decrease the drug's effectiveness and increase the chances that the bacteria may become resistant to Penicillin V and similar antibiotics. If this happens, Penicillin V and similar antibiotics may not work in the future.

  • What should I avoid while taking Penicillin V?

    This medication has been prescribed for your current condition only. Do not use it later for another infection unless told to do so by your doctor. A different medication may be necessary in those cases.

  • What are possible food and drug interactions associated with Penicillin V?

    No significant interactions have been reported with Penicillin V at this time. However, always tell your doctor about any medicines you take, including over-the-counter drugs, vitamins, and herbal medicines.

  • What are the possible side effects of Penicillin V?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: black tongue, diarrhea, fever, hives, nausea, skin rash, stomach upset or pain, swelling in throat, vomiting

  • Can I receive Penicillin V if I am pregnant or breastfeeding?

    The effects of Penicillin V during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Penicillin V?

    If you miss a dose of Penicillin V, take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Penicillin V?

    Store Penicillin V tablets at room temperature in a tightly closed container.

    Store Penicillin V oral solution in the refrigerator for up to 14 days, after which any unused portion must be thrown away.

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