Therapeutic Substances 3s2s1o
Ohio State Racing Commission Regulatory Thresholds Therapeutic Substances
Substance |
Threshold |
Matrix |
Acepromazine |
HEPS 10 ng/ml |
urine |
Albuterol |
1 ng/ml |
urine |
Betamethasone |
10 pg/ml |
plasma or serum |
Butorphanol |
10 ng/ml |
urine |
Cetirizine |
6 ng/ml |
plasma or serum |
Cimetidine |
400 ng/ml |
plasma or serum |
Clenbuterol |
25 pg/ml |
plasma or serum |
Dantrolene |
5-OH dantrolene 0.1 ng/ml |
plasma or serum |
Detomidine |
1 ng/ml |
plasma or serum |
Dexamethasone |
5 pg/ml |
plasma or serum |
Diclofenac |
5 ng/ml |
plasma or serum |
Dimethyl sulfoxide (DMSO) |
10 µg/ml |
plasma or serum |
Firocoxib |
20 ng/ml |
plasma or serum |
Flunixin |
20 ng/ml |
plasma or serum |
Furosemide |
100 ng/ml |
plasma or serum |
Glycopyrrolate |
3 pg/ml |
plasma or serum |
Guaifenesin |
12 ng/ml |
plasma or serum |
Isoflupredone |
100 pg/ml |
plasma or serum |
Ketoprofen |
2 ng/ml |
plasma or serum |
Lidocaine |
20 pg/ml of total 3-OH Lidocaine |
plasma or serum |
Mepivacaine |
10 ng/ml of 3-OH Mepivacaine
Limit of Detection |
urine
plasma or serum |
Methocarbamol |
1 µg/ml |
urine |
Methylprednisolone |
100 pg/ml |
plasma or serum |
Omeprazole |
10 ng/ml omeprazole sulfide |
plasma or serum |
Phenylbutazone |
2 µg/ml |
plasma or serum |
Prednisolone |
1 ng/ml |
plasma or serum |
Procaine Penicillin |
25 ng/ml procaine |
plasma or serum |
Ranitidine |
40 ng/ml |
plasma or serum |
Triamcinolone Acetonide |
100 pg/ml |
plasma or serum |
Xylazine |
200 pg/ml |
plasma or serum |
Endogenous, Dietary or Environmental Substances
Substance |
Threshold |
Matrix |
Benzoylecgonine |
150 ng/ml |
urine |
Caffeine |
100 ng/ml |
Plasma or serum |
Carbon Dioxide (TCO2) |
37 mmol/liter |
plasma or serum |
Cobalt |
25 ppb |
plasma or serum |
Gamma Aminobutyric Acid (GABA) |
110 ng/ml |
plasma or serum |
Hydrocortisone |
1.0 µg/ml |
urine |
Methoxytyramine (3-MT) |
4 µg/ml, free + conjugated |
urine |
Morphine |
30 ng/ml total morphine |
urine |
Salicylic Acid |
6.5 µg/ml |
plasma or serum |
Theobromine |
0.3 µg/ml |
plasma or serum |
Androgenic-Anabolic Steroids
Substance |
Threshold |
Matrix |
Boldenone |
25 pg/ml free boldenone; in all horses regardless of sex |
plasma or serum |
Nandrolone |
25 pg/ml free nandrolone in fillies, mares and geldings. |
plasma or serum |
Estranediol |
45 ng/ml free and conjugated 5a-Estrane-3B, 17a-diol in male horses other than geldings |
urine |
Testosterone |
100 pg/ml free testosterone in geldings, fillies and mares unless in foal |
plasma or serum |
Effective September 1, 2022