What bacteria does flucloxacillin treat?
Flucloxacillin mainly treats Gram-positive bacteria, especially Staphylococcus aureus, including penicillinase-producing strains. It is commonly used for skin and soft tissue infections, bone infections, and respiratory infections caused by susceptible bacteria. However, it is not effective against methicillin-resistant Staphylococcus aureus (MRSA) or most Gram-negative bacteria.
Will flucloxacillin treat UTI?
Flucloxacillin is not usually recommended for urinary tract infections (UTIs) because it has poor activity against Gram-negative bacteria, the most common UTI-causing organisms like Escherichia coli. Other antibiotics, such as nitrofurantoin, trimethoprim, or fosfomycin, are typically prescribed for UTIs based on bacterial susceptibility.
Can flucloxacillin treat sinus infections?
Flucloxacillin may help bacterial sinus infections if caused by Staphylococcus aureus, but it is not the first choice. Sinus infections are often due to Streptococcus pneumoniae or Haemophilus influenzae, which flucloxacillin does not effectively target. Broad-spectrum antibiotics like amoxicillin-clavulanate are preferred.
Is flucloxacillin good for upper respiratory infection?
Flucloxacillin is not the best choice for upper respiratory infections (URIs), as most are caused by viruses, which antibiotics do not treat. If a bacterial infection is suspected, flucloxacillin may work against Staphylococcus aureus, but other antibiotics like penicillin or amoxicillin are typically more effective.
