Which prescription instruction matches 'Take two tablets immediately, then take one tablet every 6 hours for 7 days'?

Which prescription instruction matches 'Take two tablets immediately, then take one tablet every 6 hours for 7 days'?

• A. Take two tablets immediately, then take one tablet every 6 hours for 7 days.
• B. Take two tablets as needed, then take one tablet every 6 hours for 7 days.
• C. Take one tablet immediately, then two tablets every 6 hours for 7 days.
• D. Take two tablets immediately, then take two tablets every 6 hours for 7 days.

Answer: (A)

Dosing instructions are built from three parts: how much to take now (the initial dose), how often to take the medicine afterward (the dosing interval), and how long to keep taking it (the duration). In this case, the order is to take two tablets immediately, then take one tablet every 6 hours for 7 days. That means a loading dose of two tablets at once, followed by single-tablet doses at 6-hour intervals, continuing for seven days. The option that matches this exactly uses an immediate two-tablet dose, then a one-tablet dose at each 6-hour interval for seven days, which fits all three components. The other options change one or more parts: using “as needed” implies a PRN schedule rather than a fixed interval; swapping the immediate dose to one tablet or changing the subsequent dose to two tablets alters either the amount or the timing, making the instruction inconsistent with the given prescription.

Dosing instructions are built from three parts: how much to take now (the initial dose), how often to take the medicine afterward (the dosing interval), and how long to keep taking it (the duration). In this case, the order is to take two tablets immediately, then take one tablet every 6 hours for 7 days. That means a loading dose of two tablets at once, followed by single-tablet doses at 6-hour intervals, continuing for seven days.

The option that matches this exactly uses an immediate two-tablet dose, then a one-tablet dose at each 6-hour interval for seven days, which fits all three components. The other options change one or more parts: using “as needed” implies a PRN schedule rather than a fixed interval; swapping the immediate dose to one tablet or changing the subsequent dose to two tablets alters either the amount or the timing, making the instruction inconsistent with the given prescription.