下列何者可做為delayed-release 劑型之包衣材料？①hydroxypropyl methylcellulose acetate succinate ②cellulose acetate phthalate ③methacrylic acid copolymer B ④polyvinyl acetate phthalate
A僅②④
B僅①③
C僅②③④
D①②③④正確答案
答案與詳解
為什麼答案是 D
①HPMCAS、②CAP、③Eudragit S(methacrylic acid copolymer B)、④PVAP 皆為pH依賴型腸溶聚合物，可做delayed-release包衣，全選為正解。
考點：遺漏腸溶材料考點：遺漏CAP/PVAP考點：HPMCAS易忽略考點：腸溶包衣聚合物
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