Oxacillin is used to treat certain bacterial infections.


What is Oxacillin?

Oxacillin is a penicillin. It works by blocking the synthesis of the bacterial cell wall, thus causing the death of microbes.


How should Oxacillin be taken?

Oxacillin may be administered intravenously via injection or orally.


Side effects associated with Oxacillin

Among the possible side effects of Oxacillin include the following: 


  • Diarrhea, nausea or vomiting
  • Swelling or redness at the injection site


 You should contact a doctor immediately if you experience:


  • Rash
  • Urticaria
  • Itch
  • Difficulty breathing
  • Tightness in the chest
  • Swelling of the mouth, face, lips or tongue
  • Black tongue
  • Blood in the urine or stool
  • Chest pains
  • Dark urine
  • Fever, chills or sore throat
  • joint or muscle pain
  • Mouth irritation
  • Redness, swelling or blistering of the skin
  • Convulsions
  • Severe diarrhea
  • Severe or persistent nausea or vomiting
  • Severe muscle pain or cramps
  • Swelling in the mouth
  • Swollen joints
  • Bleeding or bruising
  • Irritation or vaginal discharge
  • Swollen or sensitive veins
  • Jaundice


Contraindications and warnings associated with the use of Oxacillin

Oxacillin may reduce the effectiveness of hormonal contraceptives.


Before starting treatment with Oxacillin, it is important to tell your doctor if:


  • You have any allergies to the active substance, its excipients or any other drugs (in particular to other penicillins, cephalosporins or other beta-lactam antibiotics) or food (such as corn and its derivatives)
  • You are taking any other medications, herbal remedies or supplements. Mentioning in particular: tetracycline, heparin, methotrexate, aminoglycosides, oral contraceptives and anticoagulants
  • You are suffering (or have suffered) from asthma, kidney problems, bleeding disorders, electrolyte imbalance disorders, or dehydration
  • You are on a low-salt diet
  • You are pregnant or breast-feeding