Home/Medicines/Vitamin B Complex (Injectable)
All medicines

Vitamin B Complex (Injectable)

Prescription
Water-soluble vitamin supplement
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
4 available
Formulations
1

Mechanism of action

Provides essential B vitamins (B1-thiamine, B2-riboflavin, B3-niacin, B5-pantothenic acid, B6-pyridoxine, B12-cyanocobalamin) that serve as cofactors for cellular metabolism, energy production, and neurological function

At a glance

Class
Water-soluble vitamin supplement
Schedule
Prescription
Storage
Below 25°C, protect from light (photosensitive vitamins)

Dosing

🐕

Dog

Vitamin B deficiency, anorexia, debilitation, post-surgical support
Dose
0.5–2 mL per 10kg
Route
IM, SC, IV (slow)
Frequency
SID to every 48 hours
Max dose
5 mL
Duration: Until appetite returns or deficiency corrected
🐈

Cat

Vitamin B deficiency, anorexia, chronic kidney disease support
Dose
0.25–1 mL per cat
Route
IM, SC, IV (slow)
Frequency
SID to every 48 hours
Max dose
1 mL
Duration: Until appetite returns or deficiency corrected
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Formulations

💉

Injectable solution — 1

Strength
Multi-vitamin combination per mL
Available in India

Storage

Below 25°C, protect from light (photosensitive vitamins)

Safety

Use with caution

  • Known hypersensitivity to any B vitamin component
    Anaphylaxis rare but possible with injectable form

Adverse effects

Common
Pain at injection site
Yellow discoloration of urine
Serious
Anaphylaxis (rare)
Allergic reaction

Monitoring parameters

Appetite improvementClinical recoveryHydration status
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Interactions

No documented interactions.

Brands

International

B-Complex Injectable
Vetoquinol

India

Polybion
Abbott India
Beplex Forte Injection
Anglo-French Drugs
Tribivet
Intas

FAQs

Frequently asked questions

What is Vitamin B Complex (Injectable)?
Vitamin B Complex (Injectable) is a water-soluble vitamin supplement used in pets. Provides essential B vitamins (B1-thiamine, B2-riboflavin, B3-niacin, B5-pantothenic acid, B6-pyridoxine, B12-cyanocobalamin) that serve as cofactors for cellular metabolism, energy production, and neurological function
What is Vitamin B Complex (Injectable) used for in pets?
Vitamin B Complex (Injectable) is used in veterinary medicine for: Vitamin B deficiency, anorexia, debilitation, post-surgical support; Vitamin B deficiency, anorexia, chronic kidney disease support.
What is the Vitamin B Complex (Injectable) dose for dogs?
For dogs, Vitamin B Complex (Injectable) is typically dosed as follows — Vitamin B deficiency, anorexia, debilitation, post-surgical support: 0.5–2 mL per 10kg IM/SC/IV (slow) SID to every 48 hours. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Vitamin B Complex (Injectable) dose for cats?
For cats, Vitamin B Complex (Injectable) is typically dosed as follows — Vitamin B deficiency, anorexia, chronic kidney disease support: 0.25–1 mL per cat IM/SC/IV (slow) SID to every 48 hours. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What are the side effects of Vitamin B Complex (Injectable)?
Common: Pain at injection site, Yellow discoloration of urine. Serious (call your vet immediately): Anaphylaxis (rare), Allergic reaction.
Does Vitamin B Complex (Injectable) need a prescription?
Yes. Vitamin B Complex (Injectable) is a prescription medication and should only be administered under veterinary supervision.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

References

References

The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.

Textbooks & handbooks — 5

  • Plumb's Veterinary Drug Handbook
  • Withrow & MacEwen's Small Animal Clinical Oncology
  • Merck Veterinary Manual
  • NRC Nutrient Requirements of Dogs and Cats
  • Veterinary Pharmacology and Therapeutics (Riviere & Papich)

Clinical guidelines & consensus — 4

  • ASPCA Animal Poison Control Center Guidelines
  • AAHA Diabetes Management Guidelines
  • ASPCA Poison Control Guidelines
  • RECOVER CPR Guidelines

Journals & peer-reviewed studies — 2

  • EPIC Study (J Vet Intern Med 2016)
  • JVIM FAT CAT Study

Regulatory & approvals — 1

  • CDSCO Veterinary Drug Approval Registry (1969–2026)

Databases — 1

  • Washington State University VCPL MDR1 Database
Need help? 💬
Chat with us on WhatsApp