题目内容
Which one of the following is not the physical and chemical factors affecting the design of oral sustained and controlled release preparations.
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The half-life of the drug that is suitable for the preparation of sustained/controlled-release preparations is
The dosage of drug for a general preparation is 3 times a day, 100mg each time. Now you are plan to design a sustained-relese preparation, and take medicine once a day. What dosage should you choose?
A drug is absorbed in stomach and small intestine, now we plan to deisgn a sustain-release preparation, how long is the proper interval to take medicine?
Compare with general preparations, thebioavailability for sustained/controlled should be in the range of
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