POWDERS, GRANULES, CAPSULE

Question 1

A pharmaceutical powder is a mixture of finely divided drugs from the comminution of chemicals in dry form.

Answer 1

Powders

Question 2

• Flexibility of compounding
• Good chemical stability
• Rapid dispersion of ingredients because of the small particle size

Answer 2

Advantages

Question 3

• Time-consuming preparation
• Inaccuracy of dose
• Unsuitabity for many unpleasant tasting, hygroscopic, and deliquescent drug

Answer 3

Disadvantages

Question 4

are medicated powders usually present in large quantities or volumes and are limited to non-potent substances.

Answer 4

Bulk powders

Question 5

known as CHARTULA/CHARTULAE

Answer 5

Divided powders

Question 6

dispensed in individualized doses

Answer 6

Divided powders

Question 7

examples of these powders are dusting powder, oral powders, triturations, douche, insufflations, and dentifrices.

Answer 7

Divided powders

Question 8

This method is often used to prevent a gritty feel when solids are incorporated into dermatologic or ophthalmic ointments and suspensions.

Answer 8

Levigation

Question 9

Triturating it in a mortar and pestle or using an ointment slab and spatula.

Answer 9

Levigation

Question 10

using an additional materials in which that material is soluble- a volatile solvent that evaporates.

Answer 10

Pulverization by intervention

Question 11

Examples of volatile solvent

Answer 11

Alcohol
Acetone

Question 12

What are the types of mortar and pestles

Answer 12

Wedgewood
Glass
Porcelain

Question 13

Particle sizes are determined by the size of sieve they will pass through generally range from _____ to _____ micron in size.

Answer 13

0.1
10

Question 14

The size of the particles are often expressed as a ______ which corresponds to the mesh screen size of a sieve.

Answer 14

Number

Question 15

Other name of divided powders

Answer 15

Chartula
Chartulae

Question 16

The dissolved powder is then mixed in a mortar or spread on an ointment slab to enhance the evaporation of the solvent. As the solvent evaporates, the powder will recrystallize out of solution as fine particles.

Answer 16

Pulverization by intervention

Question 17

This technique is often used with gummy substances that reagglomerate or resist grinding.

Answer 17

Pulverization by intervention

Question 18

used to blend small amounts of powders on a sheet of paper or a pill tile.

Answer 18

Spatulation

Question 19

This method is not suitable for large quantities of powders or for powders that contain potent substances because homogeneous blending may not occur.

Answer 19

Spatulation

Question 20

a thin, semi-opaque, moisture-resistant paper.

Answer 20

Vegetable parchment