(Med-Vet Pharmaceuticals) Homeopathic product contains natural ingredients and thiamine. No L-tryptophan or drug test type ingredients. Excellent for competition, training and trailering. Will not cause drowsiness. Can be fed continuously or 2 to 3 hours prior to and during show events. Dosage for adult horses: ½ - ¾ oz twice daily as needed. Do not exceed one tube daily. Contains 1,000 mg Thiamine, 250 mg Taurine and 250 mg Inositol and 2,750 mg Valerian Root.