Patients may not believe their drug is working if they see "ghost" tablets in their stool

Patients may not believe their drug is working if they see "ghost" tablets in their stool.

Some tabs are designed to release the drug without dissolving...leaving an empty shell or ghost tab behind in the stool.

This occurs with some sustained-release tablets, such as Allegra-D...Concerta...Exalgo...Glucotrol XL...Invega...K-Tab...Procardia XL...Sudafed 24 Hour...and Urocit-K.

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