D.those are uniformly absorbed from the gastrointestinal tract 3 .［多选题］
The release of the resin-drug complex is dependent upon (AC) A.pH in the gastrointestinal tract
B.drug dissolution in the gastrointestinal tract
c.the electrolyte concentration in the gastrointestinal tract D.drug stability in the gastrointestinal tract 2 .［多选题］
The Oros system composes of (AC). A.a semi-permeable coating B.a matrix C.a core tablet
D.hydrocolloid layer 3 .［多选题］
Oros can control the release rate by changing ( BCD) of the membrane. A.the diameter B.the surface area c.the thickness D.the nature 4.［多选题］
The repeat action forms are best suited for what type of drugs?ABCD A.drugs having low dosage
B.drugs employed in chronic conditions c.drugs having regular absorption patterns
D.drugs with fairly rapid rates of absorption and excretion .［多选题］
What type of drugs are suitable to be prepared in delayed action forms?ABCD A.the drug is destroyed by the gastric juices
B.the drug is excesssively irritating to the stomach c.a nauseating drug
D.the drug is absorbed from the intestines than from the stomach ［多选题］
The enteric coating may be composed of a material that (ABC) A.is pH dependent
B.may erode due to moisture c.may erode on a time basis D.is heat dependent ［多选题］
Among the many agents used to enteric coat tablets and capsules are (ABCD) A.fats
B.fatty acids c.waxes D.shellac ［多选题］
English drug insruction include：ABCD A.Description
B.Pharmacological Actions c.Indications D.Package
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