Sounds like your vet has a good idea. You can leave him at the 4mg dose for now, then in a couple of weeks, try titrating up another 1mg as the seasonal rise continues. You could order the APF and start it just before you try raising the dose more. You don't need to continue with the APF forever, the one bottle would likely be enough.
Some people have used J-herb instead of the APF - it's a milder adaptogen but works well for some horses. It's also a lor less expensive.
Lavinia and George Too
Nappi, George and Dante Over the Bridge
Jan 05, RI
ECIR Support Team