Mupirocin is an antibiotic and bacterial metabolite that has been found in P. fluorescens. It is bacteriostatic against S. aureus (MIC = 0.05 µg/ml) and active against skin wound clinical isolates of methicillin-resistant S. aureus (MRSA; MICs = 1-4 µg/ml). Mupirocin inhibits MRSA and P. aeruginosa biofilm formation in vitro.4 It inhibits bacterial cell wall isoleucyl-tRNA synthetase, slowing bacterial growth. Topical administration of Mupirocin (2% v/v) reduces the number of wound colony forming units (CFUs) in a mouse model of MRSA skin infection. Lithium mupirocin as been used to study mupirocin resistance in staphylococcus aureus and in mycoplasma susceptibility studies.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.