How much is gr viiss?

Answer:
gr is the abbreviation for the apothecary measurement grain

VIISS is 7 1/2 (the Roman Numeral for 7 is VII and Roman Numeral for 1/2 is SS)

There are 60mg (milligrams) is one grain, therefore.....gr VIISS = 450mg

First answer by ID3451679824. Last edit by Starlit2seven. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].