Hi Kathy,
I've been using the liquid in oil for several years and it is SO much easier, less expensive and my horses have done VERY well on it... both got down below 20 on the ACTH scale.  And I did ask the pharmacist if it was less stable than capsules and she said they were pretty much the same.  For the ease, and less $'s, I'm sticking with it.  And if you need to increase their dosage, just ask it to be compounded at a higher rate of mg/ml.  And ask for bigger syringes if you start needing more than one to carry it.  Good luck with it.   (-:
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Linda in Grass Valley, CA  2020  Midnight and Ostara
https://ecir.groups.io/g/CaseHistory/files/Linda%20Midnight%20OStara