A prescription indicates to dispense 15 gr. How many grams is this?

To convert grains to grams, it’s important to know the conversion factor: 1 grain is equivalent to approximately 0.0648 grams. Therefore, to find the number of grams in 15 grains, you would multiply 15 by 0.0648.

The calculation would look like this:

15 grains × 0.0648 grams/grain = 0.972 grams.

When rounding to a practical number for dispensing, 0.972 grams can be approximated to 1 gram.

Thus, the response indicating 1 gram reflects the correct understanding of the conversion from grains to grams and provides an accurate dosage in line with standard practice in pharmacy.