low cost, individualized dosing, high stability
What are some advantages with powders?
very fine; very coarse
90-125 microns would be considered _________ while 1200 microns would be considered _________.
weight/volume
Bulk density =
in order of smaller to larger quantity; if quantity is equal , chose one with higher bulk density first
What are the 2 rules for blending?
Bulk powders
- a single container from which multiple doses could be drawn
douche powders
-are used to prepare solutions that cleanse the vagina; mostly hygienic, but there are few that contain antibiotics.
Dusting powders
-Fine medicated (bulk) powders intended to be dusted on the skin by means of sifter-top containers.
powder bases
-absorb secretions
smaller mesh number
Big particle size =
dry granulation
-make a big tablet and break it down
wet granulation
-make a slurry/paste, pass through sieve, then dry
1000 mg
000 =
600 mg
00 =
500 mg
0 =
300 mg
1 =
250
2 =
200 mg
3=
125mg
4=
60mg
5=