RX Vitamins

Amino B-Plex - 4 fl oz.

$24.19

  • Supports normal appetite and nutritional status
  • Supports normal energy metabolism and everyday vitality
  • Helps maintain normal metabolic function and overall wellness
  • Authentic products from trusted brands
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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. 

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Amino B-Plex provides B-complex vitamins and amino acids in a palatable liquid formula designed to support normal appetite, nutritional status, energy metabolism, and overall wellness in dogs and cats. The 4 fl oz bottle can be given directly by mouth or mixed with food, making daily supplementation easier for pets that do not readily accept tablets or capsules. Dosing is based on body weight, and the formula can be used when a veterinarian recommends additional nutritional support.

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

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

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

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

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

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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.

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Amino B-Plex Liquid B-Complex for Dogs and Cats

Rx Vitamins Amino B-Plex 4 fl oz is a highly palatable liquid B-complex and amino acid supplement formulated for dogs and cats. It combines B vitamins, essential amino acids, spirulina, iron, and potassium to support normal appetite, energy metabolism, nutritional status, and overall vitality.

The 4 fl oz bottle contains approximately 120 mL, making it a practical everyday size for pets receiving Amino B-Plex as part of an ongoing nutritional-support routine. The liquid can be given directly or mixed with food, which can make administration easier for dogs and cats that do not readily accept tablets or capsules.

Amino B-Plex is designed as a broad nutritional formula rather than a single-vitamin supplement, giving pet owners and veterinary professionals a convenient source of B-complex vitamins and multiple amino acids in one liquid product.

4 fl oz / 120 mL Amino B-Plex

This product contains 4 fl oz, or approximately 120 mL, of Amino B-Plex.

The 4 oz size provides more product than the 2 oz bottle while retaining the same core nutritional formula. It can be a practical choice for ongoing supplementation when a pet is already using Amino B-Plex consistently.

Pet owners comparing different Amino B-Plex sizes should choose based on expected use, pet size, and the current weight-based directions rather than assuming the bottle sizes have different active formulas.

Liquid B-Complex Supplement for Pets

Amino B-Plex provides several members of the B-complex vitamin family in an easy-to-administer liquid format.

The formula includes Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, niacinamide, and pantothenic acid.

These nutrients contribute to the product's broader nutritional and metabolic-support profile and help distinguish Amino B-Plex from simple single-ingredient vitamin liquids.

Essential Amino Acid Blend

Amino B-Plex also includes a proprietary amino acid blend containing lysine, methionine, phenylalanine, taurine, threonine, arginine, leucine, isoleucine, valine, glutamine, and histidine.

Amino acids are fundamental nutrients involved in normal protein, tissue, and metabolic processes throughout the body.

The combination of B-complex vitamins and amino acids gives Amino B-Plex a broader nutritional role than a standard B-vitamin product alone.

Supports Normal Appetite

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

The highly palatable liquid format can make supplementation easier for pets that are selective about solid tablets or capsules.

Persistent or significant appetite changes should still be discussed with a veterinarian because reduced food intake can have many causes.

Supports Energy and Vitality

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

B vitamins and amino acids participate in many normal metabolic pathways involved in the use of nutrients and production of cellular energy.

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

Supports Normal Metabolic Function

Normal metabolism depends on a wide range of nutrients working together.

Amino B-Plex combines B vitamins, amino acids, minerals, and spirulina in one formula to support normal metabolic processes in dogs and cats.

This makes metabolic support one of the strongest generic search themes for the product alongside B-complex and amino acid supplementation.

Vitamin B1

The formula contains Vitamin B1, or thiamine, as part of its B-complex profile.

Thiamine participates in normal carbohydrate and energy metabolism and works alongside the other B vitamins in the formula.

Amino B-Plex should be positioned as a complete liquid B-complex product rather than as a standalone thiamine supplement.

Vitamin B2

Vitamin B2 is included alongside B1, B6, B12, niacinamide, and pantothenic acid.

It contributes to normal metabolic processes and forms part of the broader B-complex nutritional profile.

The combination of multiple B vitamins gives the formula broader relevance for routine nutritional supplementation.

Vitamin B6

Amino B-Plex contains Vitamin B6, which participates in normal amino acid and nutrient metabolism.

Its inclusion works naturally with the proprietary amino acid blend used in the formula.

This relationship between B vitamins and amino acids is an important part of the product's nutritional identity.

Vitamin B12

The formula also contains Vitamin B12.

Vitamin B12 forms part of the complete B-complex blend rather than functioning as the sole active nutrient.

Pet owners specifically searching for a single-ingredient B12 supplement should therefore understand that Amino B-Plex provides B12 alongside several other B vitamins, amino acids, minerals, and spirulina.

Niacinamide and Pantothenic Acid

Amino B-Plex includes niacinamide and pantothenic acid as additional B-complex nutrients.

These ingredients complement vitamins B1, B2, B6, and B12 and contribute to the formula's overall nutritional and metabolic-support profile.

The result is a more comprehensive liquid B-complex formula for dogs and cats.

Spirulina

Spirulina is included in Amino B-Plex as part of its active nutritional blend.

It adds another nutritional component to the combination of vitamins, amino acids, iron, and potassium.

Stratford should present spirulina as part of the complete formula rather than assigning unsupported therapeutic effects to it.

Potassium

The formula also provides potassium as tri-potassium citrate.

Potassium forms part of the product's nutritional and mineral profile and complements the B vitamins and amino acids.

Amino B-Plex should not be confused with Rx Vitamins Amino B+K, which is a separate product specifically designed around higher dietary potassium supplementation.

Iron

Amino B-Plex includes iron as ferrous sulfate.

Iron contributes to the overall nutritional formula but should not be used to position Amino B-Plex as a treatment for anemia.

Abnormal blood values or suspected iron deficiency should be evaluated by a veterinarian.

Taurine

Taurine is one of the amino acids included in the proprietary blend.

It is a familiar nutrient in companion-animal nutrition and is especially important in feline nutrition.

Within Amino B-Plex, taurine is supplied as part of a multi-amino-acid formula rather than as a standalone taurine supplement.

Lysine and Methionine

The amino acid blend contains lysine and methionine.

Both are important amino acids involved in normal protein and nutrient metabolism.

Their inclusion contributes to the broader nutritional-support profile of Amino B-Plex for both dogs and cats.

Leucine, Isoleucine and Valine

Amino B-Plex also includes leucine, isoleucine, and valine within the amino acid blend.

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

They are included as part of the overall veterinary nutritional formulation rather than marketed as separate performance ingredients.

Liquid B Vitamins for Dogs

Amino B-Plex is formulated for dogs and provides B-complex vitamins and amino acids in a liquid format.

The liquid can be easier to administer for dogs that resist capsules or tablets and can be given according to the current weight-based directions.

Owners should follow the current label or their veterinarian's recommendation when determining the appropriate daily amount.

Liquid B Vitamins for Cats

Amino B-Plex is also labeled for cats.

The highly palatable liquid format can be useful for feline supplementation because some cats are difficult to give tablets or capsules.

Because cats have specific nutritional requirements and can be sensitive to changes in diet and supplementation, follow the current product directions carefully.

Easy-to-Administer Liquid Format

The liquid format is one of Amino B-Plex's strongest practical advantages.

It can be given directly by mouth or mixed with food according to the pet's routine and current instructions.

This provides an alternative to larger tablets, capsules, and chewable products that may be difficult for some dogs or cats to accept consistently.

Weight-Based Serving Directions

Amino B-Plex uses weight-based serving directions for dogs and cats.

The current product labeling provides different daily amounts for pets weighing 5 pounds or less, pets between approximately 5 and 20 pounds, and animals above 25 pounds.

Dosage may also be modified by a veterinarian based on the individual pet's nutritional needs.

Amino B-Plex 4 oz vs. 2 oz

The 2 fl oz and 4 fl oz Amino B-Plex products use the same core nutritional formulation.

The main difference is package size. The 4 fl oz bottle provides approximately 120 mL, while the 2 fl oz bottle provides approximately 60 mL.

The larger 4 oz size can be more practical for ongoing use, while the smaller bottle may be useful for first-time use or pets requiring relatively small daily amounts.

Amino B-Plex 4 oz vs. 8 oz

Rx Vitamins also offers an 8 fl oz Amino B-Plex bottle.

The 8 oz size may be more appropriate for higher-volume or longer-term supplementation, while the 4 oz bottle provides a middle-size option for routine use.

All size pages should maintain the same core ingredient identity while clearly distinguishing bottle volume and practical use case.

Amino B-Plex vs. Amino B+K

Amino B-Plex and Amino B+K are separate Rx Vitamins products.

Amino B-Plex focuses on broad B-complex, amino acid, and nutritional support, while Amino B+K is specifically formulated as a concentrated dietary potassium source and provides 2 mEq of potassium per 2 mL. :contentReference[oaicite:5]{index=5}

Keeping this distinction clear helps pet owners choose the correct product and prevents search engines from conflating the two formulas.

Professional Veterinary Formula

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

The current product label recommends veterinary examination before use and allows dosage to be modified according to veterinary guidance.

This makes the product best positioned as targeted nutritional support rather than as a generic pet multivitamin.

Part of a Complete Nutritional Routine

Amino B-Plex should complement, not replace, a nutritionally appropriate diet and routine veterinary care.

The formula can provide additional B vitamins and amino acids when nutritional support is appropriate, but persistent appetite loss, lethargy, or changes in body condition require professional evaluation.

Pet owners should also compare other supplements being used to avoid unnecessary ingredient duplication.

Choosing a Liquid B-Complex for Dogs and Cats

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

Amino B-Plex 4 fl oz has a clearly defined profile: dogs and cats, 120 mL liquid format, B1, B2, B6, B12, niacinamide, pantothenic acid, multiple amino acids, spirulina, potassium, and iron.

These details provide a more useful comparison than choosing a product based only on the words “B vitamin.”

Everyday Amino B-Complex Support in a 4 oz Liquid

Rx Vitamins Amino B-Plex 4 fl oz provides dogs and cats with B-complex vitamins, essential amino acids, spirulina, iron, and potassium in a highly palatable liquid format.

The 120 mL bottle is well suited to ongoing nutritional supplementation and supports normal appetite, energy metabolism, nutritional status, and vitality.

For pet owners searching for Amino B-Plex, liquid B-complex for dogs and cats, amino acid supplements for pets, or Rx Vitamins Amino B-Plex 120 mL, the 4 oz bottle provides a practical standard-size option for routine use.