Rx Vitamins Rx D3 is formulated with pure cholecalciferol (Vitamin D3), a crucial nutrient that aids in calcium and phosphorus absorption to promote strong bones, teeth, and overall health. This liquid formula, enriched with MCT oil, ensures safe and effective nutrient delivery, making it an excellent choice for pets requiring cat vitamins for indoor cats, dog nutrition supplements, or help with absorption of calcium for dogs. Rx D3 supports wellness by enhancing bone strength, kidney health, and immune function. It is ideal for aging pets needing senior dog supplements to boost vitality or growing kittens requiring kitten vitamins for indoor kittens to support development. Additionally, it helps manage specific needs such as cat bone supplements, dog health supplies, and liquid dog vitamins for daily nourishment. Designed for easy and accurate dosing, Rx D3 provides essential pet vitamins for recovery and long-term health. By improving calcium absorption, Vitamin D3 promotes healthy bones, better organ function, and overall vitality. This versatile supplement meets the unique requirements of senior cat supplements, cat immune boosters, and dog calcium supplements. Suitable for pets of all ages and lifestyles, Rx D3 delivers comprehensive support—be it cat liquid vitamins, puppy supplements, or a vitamin for cats recovering from health challenges. This product offers the vital care your pets need to lead healthy, active lives.