Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Vitamin B Complex is dosed at 1–4 ml/dog (per animal, banded by weight, NOT per kg) IM SC/IM/IV q24h in dogs, per BSAVA Small Animal Formulary, 10th ed, Part A (Canine and Feline), Vitamin B complex, DOSES, printed p.427 (corpus PDF p.443) - "Dogs: 1 ml/dog (dogs up to 15 kg), 2-4 ml/dog (dogs >15 kg) s.c., i.m., i.v. q24h." Plumb's Veterinary Drug Handbook 10th ed carries NO Vitamin B Complex monograph and is not a source for this rule.. Vitamin B Complex is used in dogs for Nutritional support, Nutritional support in hospitalized patients, Appetite stimulant, nutritional support. Routes documented in dogs: IM, IV, SC. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 3 cited dose rules for Vitamin B Complex in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 1–4 ml/dog (per animal, banded by weight, NOT per kg) | SC/IM/IV q24h | As needed | Nutritional support | Moderate | BSAVA Small Animal Formulary, 10th ed, Part A (Canine and Feline), Vitamin B complex, DOSES, printed p.427 (corpus PDF p.443) - "Dogs: 1 ml/dog (dogs up to 15 kg), 2-4 ml/dog (dogs >15 kg) s.c., i.m., i.v. q24h." Plumb's Veterinary Drug Handbook 10th ed carries NO Vitamin B Complex monograph and is not a source for this rule. |
| IV | 1–4 mL/animal | q24h; 1 mL <=15 kg, 2-4 mL >15 kg | During hospitalization | Nutritional support in hospitalized patients | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) NO SUPPORTING MONOGRAPH IN THIS BOOK — Plumb's Veterinary Drug Handbook, 10th ed (held) carries no Vitamin B Complex monograph; the held copy has single-vitamin monographs only (Cobalamin printed p.304-306, Thiamine printed p.1223-1224). [LOCATOR CORRECTED 2026-08-12 — the clause previously here named the Vitamin A monograph, printed p.1310]; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
| SC | 1–4 ml/dog | q24h; 1 ml <=15 kg, 2-4 ml >15 kg | As needed | Appetite stimulant, nutritional support | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) NO SUPPORTING MONOGRAPH IN THIS BOOK — Plumb's Veterinary Drug Handbook, 10th ed (held) carries no Vitamin B Complex monograph; the held copy has single-vitamin monographs only (Cobalamin printed p.304-306, Thiamine printed p.1223-1224). [LOCATOR CORRECTED 2026-08-12 — the clause previously here named the Vitamin A monograph, printed p.1310]; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
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Cofactors in numerous metabolic pathways. Thiamine (B1) essential for neurological function, B12 for erythropoiesis and methylation. Supports appetite and energy metabolism.
Generally very safe. IV injection may cause transient hypotension or anaphylactoid reaction (rare). Thiamine (B1) deficiency in reptiles and fish fed frozen/thawed prey containing thiaminase.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Vitamin B Complex dose ranges in dogs, with cited source references: IM 1–4 ml/dog (per animal, banded by weight, NOT per kg) SC/IM/IV q24h; IV 1–4 mL/animal q24h; 1 mL <=15 kg, 2-4 mL >15 kg; SC 1–4 ml/dog q24h; 1 ml <=15 kg, 2-4 ml >15 kg. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Vitamin B Complex in dogs: IM, IV, SC.
Cited course lengths for Vitamin B Complex in dogs include: As needed; During hospitalization. Duration depends on the indication — match it to the specific dose rule in the table above.
Vitamin B Complex is indicated in dogs for: Nutritional support, Nutritional support in hospitalized patients, Appetite stimulant, nutritional support.
These are general warnings for Vitamin B Complex across species; consult the dog dosing table above for species-specific guidance. Generally very safe. IV injection may cause transient hypotension or anaphylactoid reaction (rare). Thiamine (B1) deficiency in reptiles and fish fed frozen/thawed prey containing thiaminase.
Why a species-specific page? Vitamin B Complex pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.