Final answer:
To take a dose of 135mg using 90mg tablets, a patient will need to take 1.5 tablets for each dose. This calculation is done by dividing the prescribed dose by the stock strength. Consulting healthcare professionals for tablet splitting is advised.
Step-by-step explanation:
To determine how many 90mg tablets of Verapamil a patient needs to take to achieve a dose of 135mg, we need to divide the prescribed dose by the stock strength of the tablet. The prescribed dose is 135mg and the stock strength of each tablet is 90mg. The calculation would therefore be:
135mg ÷ 90mg/tablet = 1.5 tablets per dose
Since half tablets can be difficult to manage and could lead to dosing errors, it is important to consult with a healthcare professional to confirm if tablets can be safely split or if a different dosing strategy is required.