RH Herbal Preparations & Dosage Forms 2

Question 1

In herbal extraction terminology, the 'marc' refers to:

Accepted Answer

The spent plant material remaining after pressing the extract

Answer

The finished liquid extract ready for dispensing

Answer

The ratio of herb weight to menstruum volume

Answer

A type of traditional French distillate

Question 2

Percolation is preferred over simple maceration primarily because it:

Accepted Answer

Continuously exposes plant material to fresh menstruum, maintaining an extraction gradient

Answer

Requires significantly less alcohol to complete the extraction

Answer

Produces a more dilute and gentler extract suitable for sensitive patients

Answer

Requires less equipment and is faster to complete

Question 3

Acetum herbal preparations use which primary menstruum?

Accepted Answer

Apple cider vinegar or food-grade acetic acid solution

Answer

Ethanol at 60–70% concentration

Answer

Vegetable glycerin diluted with distilled water

Answer

Distilled water only

Question 4

Standardized herbal extracts are 'standardized' to ensure:

Accepted Answer

A consistent percentage of one or more identified marker compounds per dose

Answer

A fixed volume of finished product per batch

Answer

A uniform alcohol percentage regardless of the herb extracted

Answer

The total dried herb weight is equal across batches

Question 5

For a client who needs rapid absorption and precise dose adjustment, which dosage form is most appropriate?

Accepted Answer

Liquid tincture or fluid extract

Answer

Capsules filled with dried powdered herb

Answer

Standardized film-coated tablets

Answer

Bulk loose-leaf herbal tea

Question 6

A Soxhlet extraction apparatus is used in herbal medicine primarily to:

Accepted Answer

Perform exhaustive extraction using a continuously recycling solvent system

Answer

Prepare fresh-plant tinctures at low temperatures to preserve labile compounds

Answer

Concentrate aqueous decoctions by controlled evaporation

Answer

Quantify total alkaloid content in dried plant samples

Question 7

The shelf life of a properly prepared hydroethanolic tincture stored in amber glass away from heat is generally:

Accepted Answer

3–5 years or longer

Answer

6–12 months

Answer

1–2 years

Answer

30 days without refrigeration