How should 400mg of chlorpromazine be administered using available tablet strengths?

The correct approach to administering 400mg of chlorpromazine involves using the available tablet strengths in the most efficient way. When examining the options, utilizing two of the 200mg tablets effectively achieves the required dosage in fewer doses, which can enhance compliance and minimize potential confusion for the patient.

Administering two 200mg tablets provides a total of 400mg, matching exactly the prescribed dose. This method incorporates the benefits of using fewer tablets, reducing the risk of medication errors that could arise from handling multiple smaller tablets.

Other combinations, such as four 100mg tablets or a mix of different strengths, either result in an excessive amount of medication or increase the number of tablets given unnecessarily, which can complicate the regimen for the patient. Thus, using two of the 200mg tablets is the most appropriate choice for this scenario, both in terms of accuracy and practicality.