In Prostate Carcinoma, why is Continuous dosing of GnRH Agonists

In Prostate Carcinoma, why is Continuous dosing of GnRH Agonists ( ex. Gosrelin etc.) is the D.O.C. and is preferred over GnRH Antagonist (ex. Dagarelix) despite having initial worsening with the same effects ?

We have more experience with agonists and we start with an agonist. If inadequate response we can go for antagonist. Remeber the best drug isnt always the drug of choice.

Meaning to say that why are GnRH Agonists the DOC in Prostate Carcinoma