The five rights of drug administration include all except:

The five rights of drug administration are a foundational principle in pharmacology and safe medication practices, ensuring that patients receive the correct treatment. Among these rights, three key components include the right drug, right patient, and right dose, which are fundamental to preventing medication errors.

The right drug ensures that the specific medication prescribed is the one actually administered to the patient, avoiding potential adverse reactions from incorrect medications. The right patient emphasizes the need to confirm the identity of the patient before administering any drug, which is crucial for safety. The right dose involves verifying that the correct amount of medication is given to achieve the intended therapeutic effect without causing harm.

While the concept of administering drugs in the right sequence can be important in specific contexts, such as in some treatment protocols or multi-medication regimens, it is not one of the established five rights that are widely recognized as essential for drug administration. This is why "right sequence" is not included in the core five rights, making it the exception among the provided options.