Rx Vitamins Pet Nutrition

Rx Vitamins for Pets is a veterinary-channel nutraceutical brand founded in 1998 by Craig Kisciras and headquartered in Elmsford, New York. The brand's Chief Medical Officer is Robert J. Silver, DVM, MS, CVA, an integrative veterinarian who designs and clinically tests every formula in the catalog. Rx Vitamins for Pets is one of the founding members of the National Animal Supplement Council and built its identity around condition-specific, practitioner-grade formulations rather than general wellness retail products.

Products are manufactured in FDA-inspected, cGMP-compliant U.S. facilities. Raw materials undergo identity inspection and assay testing for potency, and the brand maintains relationships with independent laboratories that verify finished-product integrity. The NASC Quality Seal is carried on the line and reflects regular third-party auditing of labeling, claims, and quality systems. Rx Vitamins for Pets is also independently profiled at VDI Laboratory, which is consistent with the brand's veterinary-first orientation.

Rx Vitamins for Pets is best matched to integrative and conventional veterinarians treating specific clinical conditions in dogs and cats, gastrointestinal disorders, hepatic support, kidney function, oncology adjunct nutrition, and immune resilience. The brand is widely used in veterinary practices and is also accessible through select authorized retail. Rx Vitamins formulas are intended as supportive nutrition under veterinary direction and are not a substitute for diagnosis or medical treatment.

Why Rx Vitamins for Pets Works

Veterinarian-Designed Formulary: Dr. Robert Silver, DVM, MS, CVA, oversees product development, anchoring every SKU in real-world integrative veterinary practice.

NASC Founding Member: Rx Vitamins for Pets helped establish the NASC framework, which means quality compliance is part of the brand's DNA, not an afterthought.

Condition-Specific Approach: Formulas are organized around named clinical concerns, hepatic, renal, GI, oncology, immune, so the catalog reads like a practitioner's reference shelf.

FDA-Inspected cGMP Manufacturing: Production is conducted under continuous regulatory oversight with batch-level identity and potency testing.

Veterinary Channel Discipline: The brand's primary go-to-market is through veterinary clinics, which keeps formulation decisions answerable to clinicians rather than retail trend cycles.

Top Rx Vitamins for Pets Formulas

NutriGest

NutriGest is the brand's flagship gastrointestinal-support formula for dogs and cats. The blend combines L-glutamine, N-acetyl-D-glucosamine, deglycyrrhizinated licorice, and supportive phytochemicals to support healthy mucosal barrier function in pets with digestive sensitivities, chronic loose stools, or recurring GI upset. Available in capsule and powder formats.

Hepato Support

Hepato Support is a liver-targeted formula for dogs and cats that pairs standardized milk thistle (silybin) with B-complex cofactors and alpha-lipoic acid. Veterinarians use it to support hepatic resilience in patients with elevated liver enzymes, oxidative load, or convalescent demand. Available in capsule and 4-oz liquid formats.

Rx Biotic

Rx Biotic is a probiotic and prebiotic powder for dogs and cats featuring four bacterial strains alongside FOS and larch arabinogalactan. It is commonly recommended during antibiotic therapy, dietary transitions, and chronic gastrointestinal cases where flora repopulation is part of the recovery protocol.

Onco Support

Onco Support is a comprehensive immune and nutritional adjunct formulated for dogs and cats undergoing veterinary oncology care. The powder format simplifies administration alongside diet and includes antioxidants, mushroom extracts, and supportive nutrients selected with cancer-care patients in mind. Always used under veterinary direction.

Liquid Immuno

Liquid Immuno is a liquid immune-support formula for cats that combines L-lysine and supportive nutraceuticals. It is commonly chosen for daily immune resilience in feline patients with chronic upper-respiratory considerations and is favored for the practical convenience of liquid dosing in selective cats.

Supporting Products

Rx Zyme: Digestive enzyme powder for dogs and cats with maldigestion or pancreatic insufficiency under veterinary care.

Rx Renal: Kidney-targeted botanical and nutrient blend used in vet-directed canine and feline renal protocols.

Rx Essentials: Foundational multivitamin and mineral powder for daily nutritional support.

Rx Clay: Mineral-based intestinal binder used in select GI cases under veterinary direction.

Amino B-Plex: Liquid B-vitamin and amino acid blend for appetite and energy support.

Hemp RX: Hemp oil tincture commonly used for calm and inflammatory balance in dogs.

Joint Strength: Multi-active joint and connective tissue formula for canines.

Built for the Veterinary Bench

Rx Vitamins for Pets is a brand that earns its place by behaving like the veterinary nutraceutical it actually is, formulary discipline, condition-specific framing, and a CMO whose name is on the science behind the catalog. For pet owners working with a veterinarian on a real clinical concern, Rx Vitamins is the kind of support brand that complements the medical plan instead of competing with it. Curated Pets carries Rx Vitamins for Pets so that the formulations your vet recommends are easy to source. Talk to your veterinarian about the formula that fits your pet's diagnosis, and shop Rx Vitamins for Pets at Curated Pets when you are ready to move forward.