Program Suspension for Cats Presentation White aqueous suspension for oral administration. For small cats and kittens Package contains six ampoules wrapped in foil laminate sachet. One ampoule dispenses 1.9 g of suspension containing 133 mg of the active ingredient lufenuron. For large cats Package contains six ampoules wrapped in foil laminate sachet. One ampoule dispenses 3.8 g of suspension containing 266 mg of the active ingredient lufenuron.