Basically diagnosed with Cushing's in January this year. TRH stimulation test showed a level of 660 when should be below 100. Started on 1 tablet of Prascend/day. Had to reduce for a week as loss of appetite and diarrhoea. Retested end of March when level had dropped to just over 300. Another test done beginning of June and down to just over 200 so on vet advice increased dose to 1.5 tablets/day. Horse is 17hh 18yo ISH weighing about 660kg, not fat in any way as always erred on the thinner side to be honest. Still has a loss of appetite and struggles to even eat an apple/pear/carrot etc. Is this normal over 5 months since going on to Prascend? He eats hay/grass like its going out of fashion but wont touch his hard feed which contains his arthritis and stringhalt supplements in. Have tried a range of different feeds to tempt him but nothing really interested in, so kind of tearing my hair out as wasting lots on supplements he's not eating that he really needs. Any ideas much needed please?