Which of the following is not a standard unit in the apothecary system?

Which of the following is not a standard unit in the apothecary system?

• A. Grains
• B. Drachms
• C. Minims
• D. Liters

Answer: (D)

In the apothecary system, measurements for solids and liquids are given in traditional units like grains for weight, drachms for larger amounts of weight, and minims for small volumes. Liters, on the other hand, come from the metric system and are not part of the apothecary set. So a liter isn’t a standard apothecary unit; if you’re working in that system, you’d convert liters to the corresponding apothecary volume units (such as minims or fluid drachms) for dosing or compounding. The other units listed—grains, drachms, and minims—are all typical apothecary units.

In the apothecary system, measurements for solids and liquids are given in traditional units like grains for weight, drachms for larger amounts of weight, and minims for small volumes. Liters, on the other hand, come from the metric system and are not part of the apothecary set. So a liter isn’t a standard apothecary unit; if you’re working in that system, you’d convert liters to the corresponding apothecary volume units (such as minims or fluid drachms) for dosing or compounding. The other units listed—grains, drachms, and minims—are all typical apothecary units.