Fosmidomycin sodium salt is a phosphonic acid antibiotic and a antimalarial drug, which is active against both Gram-negative and Gram-positive bacteria.

Fosmidomycin sodium salt is a phosphonic acid antibiotic^[1][2], which is active against both Gram-negative and Gram-positive bacteria^[3].

Animals treated intraperitoneally with dosages of >10 mg/kg of fosmidomycin are apparently free of parasites. After treatment with 5 mg/kg of fosmidomycin, parasitemias are <1%. Animals treated orally with 50 or 100 mg/kg of fosmidomycin are apparently free of parasites, and parasitemias are <1% after treatment with 20 mg/kg of drug. Recrudescence is observed when the treatment is terminated after 4 days. Mice treated with 30 mg/kg of fosmidomycin over a period of 8 days are totally cured^[3].

• [1]. Kojo H, et al. FR-31564, a new phosphonic acid antibiotic: bacterial resistance and membrane permeability. J Antibiot (Tokyo). 1980 Jan;33(1):44-8.

  [2]. Fernandes JF, et al. Fosmidomycin as an antimalarial drug: a meta-analysis of clinical trials. Future Microbiol. 2015;10(8):1375-90.

  [3]. Jomaa H, et al. Inhibitors of the nonmevalonate pathway of isoprenoid biosynthesis as antimalarial drugs. Science. 1999 Sep 3;285(5433):1573-6.