This section is from the book "The Art Of Dispensing", by Peter MacEwan. See also: Calculation of Drug Dosages.
The following tables show the approximate equivalents which may be required at the dispensing-counter: .
Avoirdupois Weight.
Oz. | Grammes | |
1 4 | = | 7.09 |
I | = | 28.35 |
3 | = | 85.05 |
4 | = | 113.40 |
5 | = | 141.75 |
12 | = | 340.19 |
20 | = | 566.99 |
32 | = | 907.18 |
Apothecaries'Weight.
Grammes | ||
Gr.1/100 | = | 0.00065 |
Gr.1/64 | = | 0.001 |
Gr.1/30 | = | 0.0022 |
Gr.1/6 | = | 0.01 |
Gr. 1/4 | = | 0.016 |
Gr. j. | = | 0.064 |
Gr. iss. | = | 0.1 |
Gr. ij. | = | 0.129 |
Gr. iiss. | = | 0.162 |
Gr. iij. | = | 0.194 |
Gr. iv. | = | 0259 |
Gr. v. | = | 0.324 |
Gr. vj. | = | 0.389 |
Gr. vij. | = | o.454 |
Gr. ix. | = | 0.583 |
Gr. xv. | = | 0.972 |
Эj. | = | 1.296 |
3ss. | = | 1.944 |
3J. | = | 3.888 |
3iss. | = | 5.832 |
3ij. | = | 7775 |
3iiss. | = | 9719 |
3iij. | = | 11 .663 |
3iv. | = | 15.551 |
3v. | = | 19.439 |
3vJ. | = | 23.327 |
3vij.. | = | 27.215 |
Grammes | ||
0.004 | = | gr. 1/16 |
0.01 | = | gr 1/6 |
0.032 | = | gr.1/2 |
0.05 | = | gr.3/4 |
0.10 | = | gr. iss. |
0.I25 | = | gr. ij. |
0.15 | = | gr. iiss. |
0.20 | = | gr. iij. |
0.25 | = | gr. iv. |
0.3 | = | gr. ivss. |
o.4 | = | gr. vj. |
0.5 | = | gr. viiss. |
o.6 | = | gr. ix. |
o.8 | = | gr. xiiss |
0.9 | = | gr. xiv. |
1.0 | = | gr. xvss. |
2.0 | = | 3ss. gr. j. |
2.5 | = | 3ss. gr. viiiss. |
3.0 | = | Эij. gr. vj. |
5.o | = | 3j. gr. xvij. |
6.o | = | 3iss. gr. iiss. |
8.o | = | 3ij. gr. iiiss. |
10.0 | = | 3iiss. gr. iv. |
I2'0 | = | 3iij. gr. v. |
15.0 | = | 3iiiss. gr. xxiss. |
25.0 | = | 3vj. gr. xxvj. |
50.0 | = | Эiiss. gr. ij. |
Grammes | 0z. | Gr. | ||
10 | = | 1/4 | and | 45 |
20 | = | 1/2 | ,, | 90 |
50 | = | 13/4 | ,, | 6 |
75 | = | 2 1/2 | ,, | 64 |
100 | = | 3 3/4 | ,, | 103 |
250 | = | 8 3/4 | >> | 30 |
500 | = | 17 1/2 | ,, | 60 |
1,000 | = | 35 1/4 | ,, | 10 |
Apothecaries'Weight. continued.
Grammes | ||
| = | 31.103 |
| = | 62.207 |
| = | 93.310 |
| = | 248.828 |
Grammes | ||
75.0 | = | gr. xviiss. |
100.0 | = | 3iss. gr. xiij. |
150.0 | = | 3viss. gr. v. |
175.0 | = | , 3v. gr. ss. |
Liquid Measures.
Cubic Centimetres | ||
mj. | = | 0.059 |
mij. | = | 0.118 |
miiss. | = | 0.I5 |
miij. | = | 0.I78 |
miv. | = | 0.237 |
mv. | = | 0.296 |
mvj. | = | 0.355 |
rnviij. | = | 0.474 |
mx. | = | 0.592 |
mxij. | = | 0.710 |
mxv. | = | o.888 |
mxx. | = | 1.184 |
mxxv | = | 1.479 |
3ss. | = | 1.776 |
mxL. | = | 2.368 |
mxlv | = | 2.664 |
3j. | = | 3.552 |
3iss. | = | 5.328 |
3ij. | = | 7.103 |
3iiss. | = | 8.879 |
3iij. | = | 10.655 |
3iv. | = | 14.206 |
3v. | = | 17.758 |
3vj. | = | 21.309 |
3vij. | = | 24.861 |
| = | 28.412 |
| = | 42.618 |
| = | 56.825 |
| = | 85.237 |
| = | 113.649 |
| = | 142.061 |
| = | 170.474 |
| = | 227.298 |
| = | 568245 |
C.c. | ||
0.10 | = | miss. |
0.125 | = | mij. |
0.15 | = | miiss. |
0.20 | = | miiiss. |
0.25 | = | miv. |
0'3 | = | rnv. |
0.4 | = | mviss. |
0.5 | = | rnviiiss. |
o.6 | = | mx. |
o.8 | = | rnxiiiss. |
0.9 | = | mxv. |
1.0 | = | mxvij. |
2.0 | = | 3ss. miv. |
2.5 | = | Эij. mij. |
3.0 | = | 3ss. mxxj. |
5.o | = | 3j. mxxivss. |
6.o | = | 3j. mxliss. |
8.o | = | 3ij. mxv. |
10.0 | = | 3iiss. mxviij. |
12.0 | = | 3iij. mxxij. |
15.0 | = | 3iv. mxiiiss. |
20.0 | = | 3vss. mviij. |
25.0 | = | 3vij. miiss. |
30.0 | = | mxxvij. |
50.0 | = | 3vj. mv. |
75.0 | = | 3v. mvij |
100.0 | = | Mix. |
150.0 | = | 3ij. mxiv. |
175.0 | = | 3j. raxviss. |
200.0 | = | mxviij. |
250.0 | = | 3vj. mxxiiiss. |
500.0 | = | mxlvij. |
1,000.0 | = | 3iss. miv. |
Solution Chart. (Grains in minims, see page 32.)
Parts | Per Cent. | m xx. | m xxx. | f3j. | f3ij. | f3iij. | f3iv. | f3v. | f3vj. | vij. | f j. | f ij. | f iij. | f iv. | f v. | f vj. | f viij. | f xij. | f xvj. | f xxxij. |
1 in 1000 | 1/10 | 1/50 | 3/100 | 3/50 | 3/25 | 9/50 | 6/25 | 3/10 | 9/25 | 21/50 | 12/25 | 24/25 | 1 11/25 | 2 | 2 1/2 | 3 | 4 | 6 1/2 | 8 | 15 3/8 |
1 in 900 | 1/9 | 1/45 | 1/30 | 1/15 | 2/15 | 1/5 | 4/15 | 1 | 2/5 | 7/15 | 8/25 | 1 1/5 | 1 3/5 | 2 2/15 | 2 2/3 | 3 1/5 | 4 4/15 | 6 2/5 | 8 8/15 | 17 1/15 |
1 in 800 | 1/8 | 1/40 | 3/80 | 3/40 | 3/20 | 9/40 | 3/10 | 3/8 | 99/10 | 21/40 | 3/5 | 1 1/5 | 1 4/5 | 2 2/5 | 3 | 3 3/5 | 4 4/5 | 7 1/5 | 9 3/5 | 19 1/5 |
1 in 700 | 1/7 | 1/35 | 3/70 | 3/35 | 6/35 | 9/35 | 12/35 | 3/7 | 18/32 | 3/5 | 2/3 | 1 1/3 | 2 | 2 2/3 | 3 1/3 | 4 | 5 1/3 | 8 | 10 2/3 | 21 1/3 |
1 in 600 | 1/6 | 1/30 | 1/20 | 1/10 | 1/5 | 3/10 | 2/5 | 1/2 | 3/5 | 7/10 | 4/5 | 1 3/5 | 2 2/5 | 3 1/5 | 4 | 4 4/5 | 6 2/5 | 9 3/5 | 12 4/5 | 25 3/5 |
1 in 500 | 1/5 | 1/25 | 3/50 | 3/25 | 6/25 | 9/25 | 12/25 | 3/5 | 18/25 | 21/25 | 24/25 | 1 23/25 | 2 22/25 | 3 21/25 | 4 4/5 | 5 19/25 | 7 17/25 | 11 13/25 | 15 13/25 | 31 1/25 |
1 in 400 | 1/4 | 1/20 | 3/40 | 3/20 | 3/10 | 9/20 | 3/5 | 3/4 | 9/10 | 1 1/20 | 1 1/5 | 2 2/5 | 3 3/5 | 4 4/5 | 6 | 7 1/5 | 9 3/5 | 14 2/5 | 19 1/5 | 38 2/5 |
1 in 300 | 1/8 | 1/15 | 1/10 | 1/5 | 2/5 | 3/5 | 4/5 | 1 | 1 1/5 | 1 2/5 | 1 3/5 | 3 1/5 | 5 4/5 | 6 2/5 | 8 | 9 3/5 | 12 4/5 | 19 1/5 | 25 3/5 | 51 1/5 |
1 in 200 | 1/2 | 1/10 | 3/20 | 3/10 | 3/5 | 9/10 | 1 1/5 | 1 1/2 | 1 4/5 | 2 1/10 | 2 2/5 | 4 4/5 | 7 1/5 | 9 3/5 | 12 | 14 2/5 | 19 1/2 | 28 4/5 | 38 2/5 | 76 4/5 |
! in 100 | 1 | 1/5 | 3/10 | 3/5 | 1 1/5 | 1 4/5 | 2 2/5 | 3 | 3 3/5 | 4 1/5 | 4 4/5 | 9 3/5 | 14 2/5 | 19 1/5 | 24 | 28 4/5 | 38 2/5 | 57 3/5 | 76 4/5 | 153 3/5 |
1 in 75 | 1 1/3 | 4/15 | 2/5 | 4/5 | 1 3/5 | 2 2/5 | 3 1/5 | 4 | 4 4/5 | 5 3/5 | 61 | 12 4/5 | 19 1/5 | 25 3/5 | 32 | 38 2/5 | 51 1/5 | 76 4/5 | 102 2/5 | 204 4/5 |
1 in 50 | 2 | 2/5 | 3/5 | 1 1/5 | 2 2/5 | 3 3/5 | 4 4/5 | 6 | 7 1/5 | 8 2/5 | 9 3/5 | 19 1/5 | 28 4/5 | 38 2/5 | 48 | 57 3/5 | 76 4/5 | 115 1/5 | 153 3/5 | 307 1/5 |
1 in 40 | 2 1/2 | 1/2 | 3/4 | 1 1/2 | 3 | 4 1/2 | 6 | 7 1/2 | 9 | 10 1/2 | 12 | 24 | 36 | 48 | 60 | 72 | 96 | 144 | 192 | 384 |
1 in 33 1/3 | 3 | 3/5 | 9/10 | 1 4/5 | 3 3/5 | 5 2/5 | 7 1/5 | 9 | 10 4/5 | 12 3/5 | 14 2/5 | 28 4/5 | 43 1/5 | 57 3/5 | 72 | 86 2/5 | 115 1/5 | 172 4/5 | 230 2/5 | 460 4/5 |
1 in 30 | 3 1/3 | 2/3 | 1 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 32 | 48 | 64 | 80 | 96 | 128 | 192 | 256 | 512 |
1 in 25 | 4 | 4/5 | 1 1/5 | 2 2/5 | 4 4/5 | 7 1/5 | 9 3/5 | 12 | 14 2/5 | 16 4/5 | 19 1/5 | 38 2/5 | 57 3/5 | 76 4/5 | 96 | 115 1/5 | 153 3/5 | 230 2/5 | 307 1/5 | 614 2/5 |
1 in 20 | 5 | 1 | 1 1/2 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 48 | 72 | 96 | 120 | 144 | 192 | 288 | 384 | 768 |
1 in 15 | 6 2/3 | 1 1/3 | 2 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | 32 | 64 | 96 | 128 | 160 | 192 | 256 | 384 | 512 | 1024 |
1 in 10 | 10 | 2 | 3 | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 96 | 144 | 192 | 240 | 288 | 384 | 576 | 768 | 1536 |
1 in 5 | 20 | 4 | 6 | 12 | 24 | 36 | 48 | 60 | 72 | 84 | 96 | 192 | 288 | 384 | 480 | 576 | 768 | 1152 | 1536 | 3072 |
1 in 4 | 25 | 5 | 7 1/2 | 15 | 30 | 45 | 60 | 75 | 90 | 105 | 120 | 240 | 360 | 480 | 600 | 720 | 960 | 1440 | 1920 | 3840 |
1 in 3 | 33 1/3 | 6 3/3 | 10 | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 320 | 480 | 640 | 800 | 960 | 1280 | 1920 | 2560 | 5120 |
1 in 2 | 50 | 10 | 15 | 30 | 60 | 90 | 120 | 150 | 180 | 210 | 240 | 480 | 720 | 960 | 1200 | 1440 | 1920 | 2880 | 3840 | 7680 |
 
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