Gonadotropin tannate

Another way of prolonging the resorption of gonadotropins has been studied by Suhnan, Levy-Hochman, fuid Black (1945) who used insoluble gonadotropin tannate made up into pdlets. The average duration of effectivity of pellets containing 100 lU of various gonadotropins implanted intramusculariy into infantile female rats is shown in Table II. Details will be given later. 

Effectiveness of Gonadotropin Tannate Pellets Implanted into Rats... 

The rapid destruction—especially of chorionic gonadotropin— may be slowed down to 6 days by using cholesterol-gonadotropin pellets and to 7.5 days with gonadotropin tannate pellets. 

A considerable delay of resorption and urinary excretion of chorionic gonadotropin has been obtained with chorionic gonadotropin tannate. The bulk of excretion (5%) was observed on the following days after administration ... 

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