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Medical Definition of penicillin V
: a crystalline nonhygroscopic acid that is used in the form of its potassium salt C16H17KN2O5S and has antibacterial action similar to penicillin G and is more resistant to inactivation by gastric acids
— called also phenoxymethyl penicillin
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“Penicillin V.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/penicillin%20V. Accessed 19 Apr. 2021.
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