This section is from the book "The Art Of Dispensing", by Peter MacEwan. See also: Calculation of Drug Dosages.
Read through a prescription, rapidly and in a manner suggesting no suspicion of doubt.
Write directions invariably before dispensing.
Avoid thus the use of blotting-paper : a good dispenser uses almost none.
If a mixture contains readily soluble ingredients, never use a mortar.
Avoid effecting solution by heat, for fear ofrecrystallisation.
With syrups and also ingredients not water, arrange in dispensing to rinse out the measure and leave it clean.
A skilled dispenser shows very little traces of his work.
Learn to judge of the quantity to be weighed with tolerable accuracy : train the eye as well as the hand.
Carefully clean and put away weights and scales after each operation. [To those who use hand-scales. - Ed.]
If in doubt, always begin with that of which you have no doubt.
Be rapid in manipulation.
Finish wrapping, tying, or sealing quickly.
Slow dispensing is bad dispensing, and arises either from deficient practice or want of knowledge.
Never, when in a shadow of doubt, hesitate to ask advice from a fear of compromising your own dignity.
 
Continue to: