Cloxacillin is a penicillin-type antibiotic used to treat bacterial infections caused by Staphylococcus aureus and other penicillinase-producing gram-positive bacteria.
Cloxacillin is commonly used for:
• Skin and soft tissue infections: Treats impetigo, boils, cellulitis, infected wounds, and other bacterial skin infections caused by Staphylococcus aureus.
• Bone and joint infections (osteomyelitis and septic arthritis): Used for bacterial infections of the bones and joints that require an antibiotic effective against staphylococci.
• Respiratory tract infections: Treats staphylococcal pneumonia and other lower respiratory infections caused by susceptible bacteria.
• Endocarditis: Used in the treatment of bacterial infection of the heart valves caused by Staphylococcus aureus.
• Septicaemia (bloodstream infections): Used in the treatment of serious bloodstream infections caused by susceptible staphylococci.
• Post-operative infections: Used to treat staphylococcal infections associated with surgical procedures.
Gastrointestinal disturbances such as nausea, vomiting, diarrhoea, and abdominal pain
Hypersensitivity reactions such as rash, urticaria, fever, and joint pains
Temporary increases in liver enzymes
Pain and inflammation at injection sites

Doctor of Medicine

BAMS, FMC, MD Resident
Cloxacillin is available for oral use as (capsules and syrup). It is also available for preparing solutions for intramuscular and intravenous administration (powder).
Cloxacillin is meant for adults and children.
Cloxacillin should not be administered to patients with a known allergy to any penicillin antibiotic. It is also contraindicated in patients with a history of allergies, asthma, and hay fever.
Cloxacillin may interact with oral contraceptives (such as norethisterone), anticoagulants (like warfarin), and antimetabolites (such as methotrexate). It can also interact with uricosurics (such as probenecid), NSAIDs (like ibuprofen and diclofenac), and aminoglycosides (such as neomycin).
If you miss a dose of Cloxacillin, take it as soon as you remember. If it is nearly time for your next dose, skip the missed dose and continue with your regular schedule. Do not take two doses at the same time. Completing the full prescribed course of Cloxacillin is important to ensure the bacterial infection is completely cleared and to prevent antibiotic resistance.
Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening of any symptoms, please consult your doctor.
Drink plenty of fluids to manage gastrointestinal disturbances like nausea, vomiting, and diarrhoea.
Rest and refrain from strenuous activity if you feel weak or tired after taking the medicine.
Cloxacillin does not usually affect your ability to drive or operate heavy machinery. However, if you feel dizzy or sleepy after taking this medicine, avoid driving or operating machinery until these effects have worn off.
Cloxacillin is generally considered safe for use during pregnancy. It should be used during pregnancy only if clearly needed and prescribed by a doctor. During lactation, cloxacillin is excreted in small amounts into breast milk and is typically considered safe for breastfeeding mothers. However, caution is advised. Always consult your doctor before using cloxacillin during pregnancy or while breastfeeding.
Cloxacillin should be used cautiously in patients with significant renal impairment (creatinine clearance < 10 mL/min). It should also be used with caution in patients with hepatic impairment and bleeding disorders.
To help manage bacterial infections, maintain good hygiene practices to prevent the spread of bacteria.
Drink plenty of water to help flush out toxins from your system.
Regular, moderate physical activity can also help boost your immune system.
Frequently asked questions
There is no known impact of Cloxacillin on sleep. However, if you experience unusual drowsiness or insomnia after taking this medicine, you should consult your doctor.
Cloxacillin is not known to impact fertility. However, if you have concerns about this, it would be best to discuss them with your doctor.
Cloxacillin should be taken as directed by your doctor, who will prescribe the medication depending on the type and severity of the infection being managed.
The onset of action for Cloxacillin can vary depending on the type of infection and individual patient factors. It would be incorrect to suggest a specific time frame without knowledge of these variables.
The best time to take Cloxacillin is decided by your doctor based on your condition.
The duration of treatment with Cloxacillin varies depending on the type and severity of the infection and should be determined by your doctor.
Cloxacillin usually requires a prescription and is not typically available over the counter.
Cloxacillin in other salts
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