A New Calcium(II)-Based Substitute for Enrofloxacin with Improved Medicinal Potential.

Pharmaceutics

School of Chemistry & Pharmaceutical Sciences, State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.

Published: January 2022


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Article Abstract

Enrofloxacin (EFX) reacting with Ca(II) afforded a new complex, [Ca(EFX)(HO)] (EFX-Ca), which was structurally characterized both in solid and solution chemistry. and were tested to be the most sensitive strains for EFX-Ca. The LD value of EFX-Ca in mice was 7736 mg/kg, implying the coordination of EFX to Ca(II) effectively reduced its acute toxicity. EFX-Ca also decreased the plasma-binding rate and enhanced the drug distribution in rats along with longer elimination half-life. EFX-Ca also showed similar low in vivo acute toxicity and higher anti-inflammation induced by HO or CuSO in zebrafish, with reactive oxygen species (ROS)-related elimination. The therapeutic effects of EFX-Ca on two types (AA and 817) of -infected broilers were also better than those of EFX, with cure rates of 78% and 88%, respectively. EFX-Ca showed promise as a bio-safe metal-based veterinary drug with good efficacy and lower toxicity.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8878047PMC
http://dx.doi.org/10.3390/pharmaceutics14020249DOI Listing

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