Physiological Salt Solution. Take normal salt solution as given above and to every 3½ oz. add 15 gr. of carbonate of soda.
Potassium Permanganate. 2½ dr. to the quart makes a 1% solution. 3 gr. to the quart makes a 1:5000 solution.
Silver Nitrate. 4½ gr. to the ounce of water or 1 gr. to 1–7/10 dr. makes a 1% solution.
Ziratol. 2½ teaspoonfuls to a quart of water makes a 1% solution.
For general reference the following valuable table is appended:
| PERCENTAGE SOLUTION TABLE | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| By Alfred I. Cohn, Phar. D., in Merck’s Report | |||||||||||||||||||
| Quantity of solution to be made | GRAINS OF SALT OR DRUG REQUIRED TO MAKE SOLUTIONS OF PERCENTAGE STRENGTH INDICATED | ||||||||||||||||||
| 0.5% | 1% | 2% | 3% | 4% | 5% | 6% | 8% | 10% | 15% | 20% | 25% | 50% | 1:500 | 1:1000 | 1:2000 | 1:3000 | 1:4000 | 1:5000 | |
| ½ fl. oz | 1.15 | 2.3 | 4.6 | 6.9 | 9.3 | 11.7 | 14.1 | 19. | 24. | 36.8 | 50.2 | 65. | 151.2 | 0.46 | 0.228 | 0.12 | 0.075 | 0.06 | 0.05 |
| 1 fl. oz | 2.3 | 4.6 | 9.2 | 13.9 | 18.6 | 23.4 | 28.2 | 37.9 | 47.9 | 73.5 | 100.3 | 130. | 302.5 | 0.91 | 0.456 | 0.23 | 0.15 | 0.12 | 0.09 |
| 2 fl. oz | 4.6 | 9.2 | 18.4 | 27.8 | 37.2 | 46.8 | 56.4 | 75.8 | 95.8 | 147. | 200.6 | 260. | 605. | 1.8 | 0.91 | 0.46 | 0.3 | 0.23 | 0.18 |
| 3 fl. oz | 6.9 | 13.8 | 27.6 | 41.7 | 55.8 | 70.2 | 84.6 | 113.7 | 143.7 | 220.5 | 301. | 390. | 907.5 | 2.7 | 1.37 | 0.68 | 0.46 | 0.34 | 0.27 |
| 4 fl. oz | 9.2 | 18.4 | 36.8 | 55.6 | 74.4 | 93.6 | 112.8 | 151.6 | 191.6 | 294. | 401.2 | 520. | 1210. | 3.64 | 1.82 | 0.91 | 0.61 | 0.46 | 0.36 |
| 5 fl. oz | 11.5 | 23. | 46. | 69.5 | 93. | 117. | 141. | 189.5 | 239.5 | 367.5 | 501.5 | 650. | 1512.5 | 4.55 | 2.28 | 1.14 | 0.76 | 0.57 | 0.46 |
The table shows the quantity of drug required to yield a given volume of solution of the percentage strength desired. Thus, to make one fluid ounce of a 5 per cent solution it is merely necessary to dissolve 23.4 grains of the salt in sufficient water to make one fluid ounce.
THERAPEUTIC INDEX
Young’s Rule for Dosage: The age of the child is divided by the age of the child plus 12, and the result is the appropriate dose for the child. The doses given below are for the adult unless otherwise specified.
Absorbent. A medicine or dressing that promotes absorption, such as potassium iodide, Tr. iodine, glycerine, or hot vaginal douches.