My horse has some anhidrosis. As is typical, he can stop sweating when the weather gets hot and humid. I have been using One AC and Guiness Stout. We did okay with some sweating and no distress until a heat wave at the end of August. I increased his beer and switched to Swetworks by Horse Tech since I needed to buy more of something anyway.
He started sweating again after about 10 days. It should be noted that it was also way cooler. It seems like he is sweating more freely than he has in a couple of years for whatever reason!
Last winter I took him off the supplement and started him back in the Spring. What do others with anhidrotic horses do? Supplement the same, cut back, or nothing in the cooler weather when the horse appears to be sweating?