Last Updated：2025/12/06
(pharmacology) A crystalline nonhygroscopic acid that is a semisynthetic form of penicillin, used in the form of its sodium or potassium salt C₁₆H₁₇KN₂O₅S, and has antibacterial action similar to benzylpenicillin and is more resistant to inactivation by gastric acids; 6-phenoxyacetamidopenicillanic acid, C₁₇H₂₀N₂O₆S.
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phenoxymethyl penicillin
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Source Word
phenoxymethyl penicillin
IPA(Pronunciation)
Noun
uncountable
(pharmacology)
A
crystalline
nonhygroscopic
acid
that
is
a
semisynthetic
form
of
penicillin,
used
in
the
form
of
its
sodium
or
potassium
salt
C₁₆H₁₇KN₂O₅S,
and
has
antibacterial
action
similar
to
benzylpenicillin
and
is
more
resistant
to
inactivation
by
gastric
acids;
6-phenoxyacetamidopenicillanic
acid,
C₁₇H₂₀N₂O₆S.
Japanese Meaning
フェノキシメチルペニシリン：半合成ペニシリンの一種で、結晶状の非吸湿性酸。ナトリウムまたはカリウム塩として使用され、抗菌作用はベンジルペニシリンに類似し、胃酸による不活化に対してより抵抗性がある。
Sense（1）
(pharmacology)
A
crystalline
nonhygroscopic
acid
that
is
a
semisynthetic
form
of
penicillin,
used
in
the
form
of
its
sodium
or
potassium
salt
C₁₆H₁₇KN₂O₅S,
and
has
antibacterial
action
similar
to
benzylpenicillin
and
is
more
resistant
to
inactivation
by
gastric
acids;
6-phenoxyacetamidopenicillanic
acid,
C₁₇H₂₀N₂O₆S.
