Dicloxacillin is available only in generic form and is used to treat a variety of bacterial infections. This prescription antibiotic comes as capsules that are usually taken every six hours. Your dosage will depend on a number of factors, such as your age and other medical conditions you have. Side effects are possible and may include nausea, diarrhea, and allergic reactions.
Dicloxacillin sodium is a prescription antibiotic licensed to treat a number of different infections. Specifically, it is used for infections caused by Staphylococci bacteria that produce penicillinase, an enzyme than can destroy penicillin.
Dicloxacillin is available only as a generic product and is made by various manufacturers (see Generic Dicloxacillin).
Dicloxacillin is a penicillin antibiotic. Penicillins are part of a larger group of medications known as beta-lactam antibiotics, which are named after the ring-like "lactam" structure of these drugs. Dicloxacillin works by stopping bacteria from making cell walls, which eventually causes the bacteria to die.
More specifically, dicloxacillin is a penicillinase-resistant penicillin. Some bacteria produce penicillinase, an enzyme that destroys the beta-lactam structure of penicillin, making it and other similar antibiotics ineffective for treating infections due to such bacteria. Dicloxacillin is resistant to penicillinase.
However, such bacteria (notably, methicillin-resistant Staphylococcus aureus, or MRSA) have developed resistance against dicloxacillin and other penicillinase-resistant penicillins. Dicloxacillin is ineffective against MRSA.