RX Vitamins

Amino B-Plex - 2 fl oz.

$17.33

  • Supports normal appetite and nutritional status
  • Supports normal energy metabolism and vitality
  • Helps maintain normal metabolic function and wellness
  • Authentic products from trusted brands
  • Free shipping on all consumer purchases
Label: Blue
DESCRIPTION

Supports Normal Metabolic Function and Vitality

Liquid Amino B-Plex provides B-complex vitamins, aqueous liver fractions, and essential amino acids to support normal nutritional status and overall wellness. The highly palatable liquid formula is easy to administer and helps support normal appetite, energy, metabolism, and vitality. 

 

FAST & RELIABLE SHIPPING
Consumer orders ship FREE with no minimum purchase and typically arrive within 3–5 business days. Wholesale orders receive FREE shipping on orders over $300. Tracking information is provided as soon as your order ships
SHOP WITH CONFIDENCE
If there's an issue with your order, our team is here to help. Eligible returns are accepted according to our Returns Policy for a worry-free shopping experience.
SECURE CHECKOUT GUARANTEED
Every order is protected with industry-standard SSL encryption and trusted payment processing for a safe shopping experience.
Secure Payment
American Express
Apple Pay
Discover
Google Pay
JCB
Mastercard
Union Pay
Visa
Label: Blue

This smaller bottle of Amino B-Plex is sized for pet parents who want to try the formula or manage a smaller pet's dosing without a large bottle going unused before it expires. It delivers the same B-complex and amino acid blend Rx Vitamins uses to help support normal appetite and nutritional status in dogs and cats. The liquid format is easy to give directly or mix into meals, which helps with pets that are eating less than usual. Dosing is based on body weight, keeping daily amounts consistent and easy to track from one bottle to the next as needs change. It's also a practical way to introduce the formula before scaling up to a larger bottle for ongoing use.

Trusted by Veterinary Professionals

Why Professionals Trust Stratford

Committed to developing science-backed, premium-quality formulas that support the health and wellness of dogs and cats.

🩺

Veterinarian Trusted

Our formulas are trusted by veterinary professionals to support companion animal care.

✓ Professional Grade Formulas
🔬

Science-Backed Formulas

Every formula is developed with science and high-quality ingredients to deliver targeted nutritional support.

✓ Research Driven Solutions
🏆

Committed to Excellence

Every product is developed with a focus on quality, consistency, and trusted veterinary care.

✓ Excellence in Every Product
💎

Premium Quality Ingredients

We use carefully selected ingredients and manufacture to rigorous quality standards.

✓ Quality You Can Rely On
🛡 Veterinarian Trusted
🌿 Science-Backed
🇺🇸 Made in USA
🔒 Secure Checkout

Customer Reviews

Helpful product information

Frequently Asked Questions

Clear answers to help you choose and use this product with confidence.

What is Amino B-Plex liquid supplement used for in pets?

Amino B-Plex is designed to support energy metabolism and vitality in dogs and cats. This liquid supplement provides B complex vitamins, aqueous liver fractions, and essential amino acids to support pets that need additional nutritional support.

Which pets can use Amino B-Plex?

Amino B-Plex is formulated for dogs and cats. It provides a highly palatable liquid format that is easy to administer as part of a pet’s wellness routine.

How does Amino B-Plex support pet energy and wellness?

This pet supplement helps support healthy energy metabolism and overall vitality by providing beneficial amounts of B vitamins and essential amino acids that contribute to nutritional support.

Why choose a liquid vitamin supplement for dogs and cats?

The liquid format of Amino B-Plex makes it easy to administer and provides a convenient way to deliver nutritional support for energy, vitality, and metabolic health in pets.

How long does shipping take, and is shipping free?

Consumer orders ship free with no minimum purchase and typically arrive within 3–5 business days. Wholesale orders qualify for free shipping on purchases over $300. Tracking information is emailed as soon as your order ships, so you can follow its delivery progress.

Still have a question?

Our team is here to help you choose the right product.

Contact us

Liquid B-Complex and Amino Acid Supplement for Dogs and Cats

Amino B-Plex 2 fl oz from Rx Vitamins is a highly palatable liquid nutritional supplement formulated for dogs and cats. It combines B-complex vitamins, essential amino acids, spirulina, iron, and potassium to support normal appetite, energy metabolism, nutritional status, and overall vitality.

The liquid format makes Amino B-Plex easy to administer directly or incorporate into a pet's normal feeding routine. The 2 fl oz bottle is especially practical for smaller pets, first-time users, or pet owners who want a compact size before moving to a larger bottle for ongoing use.

Each serving provides a broad combination of amino acids and B vitamins rather than relying on a single nutrient, giving the formula a clear role as a liquid B-complex and amino acid supplement for dogs and cats.

B-Complex Support for Dogs and Cats

Amino B-Plex provides several important B-complex vitamins in one liquid formula.

The current ingredient panel includes Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, niacinamide, and pantothenic acid.

These nutrients are part of the formula's overall nutritional and metabolic-support profile and help distinguish Amino B-Plex from simple single-vitamin liquids.

Essential Amino Acid Blend

The formula contains a proprietary amino acid blend that includes lysine, methionine, phenylalanine, taurine, threonine, arginine, leucine, isoleucine, valine, glutamine, and histidine.

Amino acids are fundamental nutritional components used throughout the body for normal tissue, protein, and metabolic processes.

Combining these amino acids with B-complex vitamins gives Amino B-Plex a broader nutritional profile than a standard B-vitamin supplement alone.

Supports Normal Appetite

Rx Vitamins positions Amino B-Plex to help support normal appetite as part of its nutritional-support role.

This makes the liquid formula particularly relevant when pet owners and veterinary professionals are looking for a palatable way to provide additional nutritional support to dogs or cats.

A persistent change in appetite should still be evaluated by a veterinarian because reduced eating can have many underlying causes.

Supports Normal Energy and Vitality

Amino B-Plex is also formulated to support normal energy and vitality.

B vitamins and amino acids participate in many normal metabolic processes involved in converting nutrients into usable energy.

The product should therefore be positioned as nutritional energy support rather than as a stimulant or rapid energy booster.

Supports Normal Metabolic Function

One of the primary product claims for Amino B-Plex is support for normal metabolic function.

The combination of B-complex vitamins, amino acids, potassium, iron, and spirulina provides multiple nutrients involved in everyday metabolic processes.

This metabolic-support positioning is one of the strongest generic search themes for the product and should remain central to the page.

Vitamin B1 for Dogs and Cats

Amino B-Plex contains Vitamin B1, or thiamine, as part of its B-complex blend.

Thiamine is an essential nutrient involved in normal carbohydrate and energy metabolism.

Within Amino B-Plex, Vitamin B1 works as one part of a larger nutritional formula rather than as a standalone supplement.

Vitamin B2 in the B-Complex Blend

The formula also provides Vitamin B2.

Vitamin B2 contributes to normal metabolic processes and is included alongside B1, B6, B12, niacinamide, and pantothenic acid.

This combination gives the product a broad B-complex identity suitable for both canine and feline nutritional support.

Vitamin B6 for Nutritional Support

Vitamin B6 is another component of the Amino B-Plex formula.

B6 participates in normal amino acid and nutrient metabolism and complements the proprietary amino acid blend used in the product.

Its inclusion reinforces the formula's emphasis on nutritional and metabolic support.

Vitamin B12 for Dogs and Cats

Amino B-Plex also contains Vitamin B12.

Vitamin B12 is part of the complete B-complex blend and contributes to the product's overall nutritional profile.

Pet owners comparing liquid B12 products should understand that Amino B-Plex is not a single-ingredient B12 supplement; it combines B12 with several other B vitamins, amino acids, and nutritional ingredients.

Niacinamide and Pantothenic Acid

The current formula includes both niacinamide and pantothenic acid.

These B-complex nutrients are included in meaningful amounts alongside B1, B2, B6, and B12.

Together, they help create a more complete B-vitamin profile for dogs and cats that need additional nutritional support.

Spirulina in Amino B-Plex

Amino B-Plex contains spirulina as part of its active nutritional blend.

Spirulina contributes additional nutritional diversity to the formula alongside the B vitamins and amino acids.

It should remain part of the product's complete ingredient story rather than being used to make unsupported disease-specific claims.

Iron in the Liquid Formula

The product includes iron in the form of ferrous sulfate.

Iron is present as one component of the overall nutritional formula.

Amino B-Plex should not be positioned as a treatment for anemia unless specifically directed by a veterinarian, because abnormal blood values require diagnosis and appropriate veterinary care.

Potassium for Nutritional Support

The formula also contains potassium supplied as tri-potassium citrate.

Potassium contributes to the broader mineral and nutritional profile of Amino B-Plex.

As with the other ingredients, it should be discussed as part of the complete supplement rather than assigned an independent therapeutic claim.

Taurine in the Amino Acid Blend

Taurine is included within the proprietary amino acid blend.

Taurine is an important amino-acid-related nutrient in companion-animal nutrition and is especially familiar to cat owners because of its role in feline nutritional requirements.

In Amino B-Plex, taurine is supplied alongside several other amino acids rather than as a standalone taurine supplement.

Lysine and Methionine

The amino acid blend also includes lysine and methionine.

These essential amino acids contribute to normal protein and nutrient metabolism and form part of the formula's broad nutritional-support profile.

The presence of multiple amino acids helps distinguish Amino B-Plex from ordinary liquid B-vitamin products.

Branched-Chain Amino Acids

Amino B-Plex contains leucine, isoleucine, and valine within its proprietary amino acid blend.

These nutrients are commonly grouped as branched-chain amino acids and are involved in normal protein and metabolic processes.

They are included as part of the complete veterinary nutritional formulation rather than marketed separately.

Liquid Vitamin Supplement for Dogs

Amino B-Plex is labeled for dogs and provides B-complex vitamins and amino acids in an easy-to-administer liquid form.

The product can be particularly convenient for dogs that do not readily accept capsules, tablets, or larger chewable supplements.

Serving size is based on body weight, so the current label should be followed carefully.

Liquid Vitamin Supplement for Cats

Amino B-Plex is also formulated for cats.

The liquid format can make nutritional supplementation easier for cats that are selective about solid products.

Because cats have specific nutritional requirements and can be sensitive to dietary changes, use the product according to the current label or your veterinarian's recommendation.

Highly Palatable Liquid Formula

Rx Vitamins describes Amino B-Plex as a highly palatable liquid.

Palatability is important because even a well-formulated supplement has limited practical value if a dog or cat consistently refuses it.

The liquid format provides an alternative to pills and capsules and can make routine administration more manageable for some pets.

2 fl oz Size for Smaller Pets and First-Time Use

The 2 fl oz bottle contains approximately 60 mL of Amino B-Plex.

This smaller package can be practical for owners who want to try the formula before purchasing a larger size or for smaller animals whose daily serving is relatively low.

The compact size can also help reduce the chance of a large bottle remaining unused for an extended period.

Amino B-Plex 2 oz vs. 4 oz

Rx Vitamins offers Amino B-Plex in multiple bottle sizes, including 2 fl oz and 4 fl oz.

The nutritional formula is intended to provide the same type of B-complex and amino acid support, while the package size affects how much product is available for ongoing use.

The 2 oz size may be better suited to smaller pets or shorter-term needs, while the 4 oz size can be more practical for pets using the supplement consistently.

Amino B-Plex 2 oz vs. 8 oz

An 8 fl oz Amino B-Plex option is also available for higher-volume use.

Larger bottles may be more practical for bigger dogs, multi-pet households, or longer-term supplementation when recommended.

The 2 oz page should therefore remain focused on compact size and convenience rather than creating a different ingredient or health positioning from the larger bottles.

Weight-Based Serving Directions

Amino B-Plex uses weight-based serving directions.

The current label provides different amounts for very small pets, pets between approximately 5 and 20 pounds, and animals above 25 pounds.

Always follow the current product label or your veterinarian's instructions because individual serving recommendations may be adjusted based on the pet's needs.

Professional Veterinary Formula

Amino B-Plex is part of the Rx Vitamins professional veterinary formula range.

The product is designed around a combination of B-complex vitamins, amino acids, minerals, and other nutritional ingredients rather than a single front-label nutrient.

This makes ingredient transparency and veterinary guidance important parts of the product's positioning.

Part of a Broader Nutritional Wellness Routine

Amino B-Plex should be used as part of a complete nutritional routine that includes an appropriate diet, access to fresh water, regular veterinary care, and other supplements only when needed.

A liquid B-complex supplement can provide targeted nutritional support, but it should not replace a balanced diet or professional evaluation of ongoing appetite or energy changes.

If a pet continues to eat poorly or appears unusually weak or lethargic, contact a veterinarian.

Choosing a B-Complex Supplement for Dogs and Cats

When comparing B-complex supplements for pets, review the species labeling, vitamin profile, amino acid content, mineral ingredients, liquid or solid format, serving directions, bottle size, and veterinary guidance.

Amino B-Plex has a clearly defined profile: dogs and cats, liquid administration, B1, B2, B6, B12, niacinamide, pantothenic acid, a multi-amino-acid blend, spirulina, potassium, iron, and a 2 fl oz bottle.

Those details provide a stronger basis for comparison than choosing a product only because the label says “B vitamins.”

Liquid Amino B-Complex Support for Dogs and Cats

Rx Vitamins Amino B-Plex 2 fl oz combines B-complex vitamins, essential amino acids, spirulina, iron, and potassium in a highly palatable liquid formula for dogs and cats.

The product is designed to support normal appetite, energy metabolism, nutritional status, and vitality while offering an easy-to-administer alternative to tablets and capsules.

For pet owners searching for Amino B-Plex, amino B complex for dogs, B vitamins for cats, or a liquid amino acid supplement for pets, the 2 fl oz formula provides a compact veterinary nutritional option with a broad ingredient profile.