Dynapen

(dicloxacillin)

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Treats common bacterial infections.

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Our bottom line

Dynapen (dicloxacillin) is an effective medicine for treating bacterial skin infections.

Quick facts about dicloxacillin
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (dicloxacillin)

Upsides

  • Good choice for treating common bacterial skin infections.
  • Available in a generic version.
  • Most will tolerate this medicine without any side-effects.
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Downsides

  • Has to be taken 4 times a day, which may be inconvenient.
  • Not a good option if you are allergic to penicillins.
  • Can interfere with how other medicines work. Talk to your doctor or pharmacist, especially if you are on blood thinners or birth control pills.
How it works

Dynapen (dicloxacillin) is an antibacterials. It kills bacteria by interfering with its cell wall production.

Quick facts about dicloxacillin
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (dicloxacillin)

Used for

  • Bacterial infections

Dosage forms

  • Pill
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What to expect when you take Dynapen (dicloxacillin) for Bacterial infections

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Side effect rates for Dynapen (dicloxacillin)

From clinical trials of dicloxacillin / Bacterial infections

Risks and Warnings for Dynapen (dicloxacillin)

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    • Higher risk if:
    • History of pencillin allergy

    Although rarely, Dynapen (dicloxacillin) can cause an allergic reaction. If you develop a rash, difficulty breathing, or swelling of your face or mouth after receiving Dynapen (dicloxacillin), talk to your doctor or go to the emergency room right away.

Common concerns from people taking Dynapen (dicloxacillin)

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Interactions
  • Can interfere with how other medicines work. Talk to your doctor or pharmacist, especially if you are on blood thinners or birth control pills.