【多选题】【消耗次数：1】
12.下列有关软膏剂制备的叙述，正确的是
①
基质在常温下能与药物均匀混合者应用研合法制备
②
软膏中含有不同熔点的基质时多采用熔合法制备
③
油脂性物质与水溶性物质混合采用乳化法
④
乳匀机或胶体磨仅限于乳化法制备软膏剂时作用
⑤
主药可溶于基质时最好采用研合法制备
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【多选题】
8.下列有关在制备软膏剂药物加入方法的叙述，正确的是
①
热敏性药物应在基质冷却至40℃左右时加入
②
挥发性药物应在基质达到40℃以上时加入
③
不溶性固体药物须制成最细粉或极细粉再与基质混合
④
溶于基质的药物，可将药物加入熔化的基质中
⑤
水溶性药物先用水溶解，以羊毛脂吸收后，再与油脂性基质混合
【单选题】
12.下列有关软膏剂基质的叙述，不正确的是
①
油脂性基持对皮肤的保湿及软化作用较强
②
乳剂型基质需要加入保湿剂
③
（O/W）型乳剂基质易清洗，不污染衣物
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水溶性基质释药快
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水溶性基质常需加入防腐剂
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