When Using Iontophoresis to Enhance the Transcutaneous Permeation of Ionic

question 19

Multiple Choice

When using iontophoresis to enhance the transcutaneous permeation of ionic drugs into the skin, what polarity must the electrode be in relationship to the medication?

• A)There is no relationship between the polarity of the medication and the electrode.
• B)The polarity of the medication and the electrode should be the same.
• C)The polarity of the medication and the electrode should be the opposite of each other.
• D)As long as the electrode with the medication is hydrated, the polarity of the electrode makes no difference.

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