Stilbestrol is a veterinarian-prescribed oral tablet formulated as an aid in the control of urinary incontinence in spayed dogs and cats. Each tablet contains diethylstilboestrol, a hormone classified under hormones and analogs, and is available in 0.5 mg and 1 mg strengths. Convenient multi-count bottles (250 or 1000 tablets, depending on strength) support clinics and multi-pet households. Prescription required in Canada; consult your veterinarian to determine the appropriate dose and duration for your pet.