I have a quarter horse which I have had for 2 years. I knew she was Hypp, but I did not realize the severity of the disorder. Well she had an attack last week. I do not want her to have another so I am looking for tips: Does anyone have an Hypp horse and what do they give give to help prevent the "attacks". Doc said he doesn't think she needs the Acetozolemide because it she has only had one attack since I purchased her in 2009, but I just want more suggestions.