PT  - JOURNAL ARTICLE
AU  - J. M. ROGOFF
TI  - A METHOD FOR THE STANDARDIZATION OF THYROID PREPARATIONS
DP  - 1917 Sep 01
TA  - Journal of Pharmacology and Experimental Therapeutics
PG  - 199--208
VI  - 10
IP  - 3
4099  - http://jpet.aspetjournals.org/content/10/3/199.short
4100  - http://jpet.aspetjournals.org/content/10/3/199.full
SO  - J Pharmacol Exp Ther1917 Sep 01; 10
AB  - A method is described in which the specific action of thyroid upon tadpoles is used to assay the physiological value of commercial thyroid preparations. Of seven products purchased in retail drugstores, two indicated about 20 per cent more activity than a standard preparation, two were equal in value to the standard, one somewhat more than 50 per cent of the standard, one less than 50 per cent, and one was a practically worthless preparation—being only about 10 to 20 per cent of the value of the standard.