Be aware that the Ohio rules regarding Lasix use and certification are being strictly enforced by the Racing Commission for horses leaving the state, racing in no Lasix states or races, and returning.
The rules appear in R.C. 3769-18-01, interpreted by the OSRC as follows. If you have a horse certified for Lasix and race on Lasix, they must remain on Lasix for 90 days before being taken off. If you take a horse off of Lasix after 90 days, the removal is to be reported to the Presiding Judge at the racetrack you are entering at to race off of Lasix. If you want to put the horse back on Lasix after removal, the 30 day rule to race without Lasix remains in effect, and you must re-certify the horse for Lasix after the 30 day period. The 30 days from removal off Lasix are counted from the day after the horse raced off Lasix. If your horse raced July 1st off Lasix you must race off Lasix until July 31st. The fine for violators is up-to $1,000 depending on the factors at play.