What is Amoxicillin used for?

Amoxicillin is indicated for: abscess, Bacterial cystitis (uncomplicated), Bacterial infection, Bacterial infection (aviary/flock treatment), Bacterial infection (general antimicrobial), Bacterial infection (used, Bacterial infection (β-lactamase-sensitive), Bacterial infection — aviary use, Bacterial infections (skin, UTI, dental), Bacterial infections (skin, UTI, dental, respiratory), Bite wound, Bordetella bronchiseptica (kennel cough), Borreliosis (Lyme disease), Broad-spectrum bacterial infection, Dental infections, Feline lower urinary tract disease (bacterial), foot rot, Gram-positive and gram-negative bacterial infection, Gram-positive bacterial infection, Helicobacter gastritis (triple therapy component), Leptospirosis (initial phase,, Respiratory, Respiratory and GI infections, Respiratory infections, respiratory or urogenital tract, skin and soft tissue, Susceptible bacterial infection, Susceptible bacterial infections of the digestive, Upper respiratory infection, urinary tract infections.

Which species have cited Amoxicillin dosing data?

Amoxicillin dosing in the ExoticRx formulary covers 27 species: African Grey Parrot, African Pygmy Hedgehog, Ball Python, Bearded Dragon, Betta (Siamese fighting fish), Blue-tongue Skink, Canary, Cat (Domestic), Cattle (Beef/Dairy), Chicken (Poultry), Corn Snake, Crested Gecko, Dog (Domestic), Domestic Pigeon, Eastern Box Turtle, Ferret, Goldfish, Green-cheeked Conure, Horse (Equine), Koi, Lovebird, Pet Rat, Russian Tortoise, Sugar Glider, Swine (Pig), Turkey, Zebra Finch.

Is Amoxicillin a controlled substance?

Amoxicillin is not federally scheduled in the US. Controlled-drug status differs by country — verify your local rules.

What are the warnings or contraindications for Amoxicillin?

CONTRAINDICATED in rabbits, guinea pigs, and hamsters (fatal dysbiosis). May cause GI upset. Cross-reactivity with other beta-lactams.

What are the side effects of Amoxicillin?

Reported side effects, adverse reactions, and contraindications for Amoxicillin: CONTRAINDICATED in rabbits, guinea pigs, and hamsters (fatal dysbiosis). May cause GI upset. Cross-reactivity with other beta-lactams.

How does Amoxicillin work?

Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs).

Amoxicillin

US brand names:Amoxi-Tabs, Amoxil

Calculate dosage

Contraindicated in Rabbit, Guinea Pig, Chinchilla, Hamster, Degu

Rabbit: Oral beta-lactams cause fatal dysbiosis in rabbitsOral amoxicillin (and other oral beta-lactams) selectively destroy gram-positive hindgut flora in rabbits, allowing Clostridium spiroforme overgrowth and fatal enterotoxemia. Never administer oral beta-lactams to rabbits. Parenteral administration carries a lower risk than the oral route, but is not established as safe in rabbits.
Guinea Pig: Oral beta-lactams cause fatal dysbiosis in guinea pigsOral amoxicillin reliably causes Clostridium difficile-mediated fatal enterotoxemia in guinea pigs. Same mechanism as in rabbits. Parenteral administration carries a lower risk than the oral route; parenteral ceftiofur specifically has been given to guinea pigs and chinchillas without adverse effect.
Chinchilla: Oral beta-lactams cause fatal dysbiosis in chinchillasChinchillas are hindgut fermenters with the same flora dependence as rabbits and guinea pigs. Oral penicillins and oral cephalosporins trigger Clostridium overgrowth and fatal enterotoxemia. Never give oral beta-lactams; parenteral routes and trimethoprim-sulfa, fluoroquinolones, or chloramphenicol are the safer choices.

Hamster: Oral beta-lactams cause fatal enterocolitis in hamstersHamsters are exquisitely susceptible to antibiotic-associated Clostridium difficile enterocolitis — the hamster is the classic laboratory model for it. Oral penicillins and cephalosporins are reliably fatal. Never administer oral beta-lactams.

Degu: Oral beta-lactams risk fatal dysbiosis in degusDegus are caviomorph hindgut fermenters closely related to chinchillas and guinea pigs. Degu-specific data is limited, so this warning is extrapolated from those related hystricomorphs — but the shared physiology makes oral beta-lactam enterotoxemia the expected outcome. Treat as contraindicated; use the safer alternatives.

Amoxicillin is dosed at 22 mg/kg PO q12-24h in ball pythons, per Divers SJ. Empirical doses of antimicrobial drugs commonly used in reptiles. Exot DVM. 1998;1:23. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.212 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929. Verify against current literature before clinical use.

Backed by 35 published sources

· 107. Divers SJ. Empirical doses of antimicrobial drugs commonly used in reptiles. Exot DVM. 1998;1:23. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.212 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929
· 167. National Office for Animal Health (NOAH). Antibiotics for animals. Available at: http://www.noah.co.uk/medicine-topics/antibiotics-for-animals. Accessed August 13, 2020. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.617 — Carpenter's Exotic Animal Formulary 6th ed, Table 6.1 (Antimicrobial Agents Used in Backyard Poultry, Gamebirds, and Waterfowl.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Backyard Poultry Medicine and Surgery — ISBN 9781119511755,

Sample dosing (2 of 48 cited rules)

A dog/cat sample is shown here. Cited dosing for all 27 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.

Species	Route	Dose	Frequency	Evidence	Source
Cat (Domestic)	PO	11–15 mg/kg	q8-12h for 3 to 5 days	Strong	Weese JS, Blondeau J, Boothe D, et al. International Society for Companion Animal Infectious Diseases (ISCAID) guidelines for the diagnosis and management of bacterial urinary tract infections in dogs and cats. Vet J. 2019;247:8-25. Distributed by John Wiley & Sons, Inc. doi:10.1016/j.tvjl.2019.02.008 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.96 (2026-08-01). — Plumb's 10th ed (held) printed p.67, Amoxicillin monograph spanning p.67-69; 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
Cat (Domestic)	PO	10–22 mg/kg	q8-12h

· 177. Coles BH. Prescribing for exotic birds. In: Bishop Y, eds. The Veterinary Formulary, 5th ed., Pharmaceutical Press, London, UK; 2001:99-105. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.405 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· 184. Hedley J. BSAVA Small Animal Formulary: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, UK; 2020. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.212 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· 21 CFR 522.88(d)(2) (Amoxicillin), approved conditions of use for Cattle: 3 to 5 mg per pound of body weight daily for up to 5 days by intramuscular or subcutaneous injection (= 6.614-11.023 mg/kg; converted at 2.2046226 lb/kg). Indications as approved: respiratory tract infections (shipping fever, pneumonia) and acute necrotic pododermatitis (foot rot). Related tolerances: 21 CFR 556.38. Retrieved from the eCFR renderer API 2026-08-12. https://www.ecfr.gov/current/title-21/section-522.88

· 236. Dorrestein GM. Studies on Pharmacokinetics of Some Antibacterial Agents in Homing Pigeons (Columba livia), Thesis: Utrecht University; 1986. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.405 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· 245. Dorrestein GM, Van Gogh H, Rinzema JD, et al. Comparative study of ampicillin and amoxicillin after intravenous, intramuscular and oral administration in homing pigeons (Columba livia). Res Vet Sci. 1987;42:343-348. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.405 doi:10.1016/s0034-5288(18)30716-1 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· 29. Isenbügel E, Baumgartner R. Diseases of the hedgehog. In: Fowler M, eds. Zoo and Wild Animal Medicine: Current Therapy, 3rd ed., WB Saunders, Philadelphia, PA; 1993:294-302. | 45. Lightfoot T. Therapeutics of African pygmy hedgehogs and prairie dogs. Vet Clin North Am Exot Anim Pract. 2000;3:155-172. | 68. Smith A. General husbandry and medical care of hedgehogs. In: Bonagura JD, eds. Kirk's Current Veterinary Therapy XIII: Small Animal Practice; WB Saunders, Philadelphia, PA; 2000:1128-1133. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.732 — Carpenter's Exotic Animal Formulary 6th ed, Table 8.1 (Antimicrobial Agents Used in Hedgehogs). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Fowler's Zoo and Wild Animal Medicine: Current Therapy — ISBN 9780323828529, https://openlibrary.org/isbn/9780323828529

· 68. Elviss NC, Williams LK, Jørgensen F, et al. Amoxicillin therapy of poultry flocks: effect upon the selection of amoxicillin-resistant commensal Campylobacter spp. J Antimicrob Chemother. 2009;64:702-711. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.617 — Carpenter's Exotic Animal Formulary 6th ed, Table 6.1 (Antimicrobial Agents Used in Backyard Poultry, Gamebirds, and Waterfowl.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Backyard Poultry Medicine and Surgery — ISBN 9781119511755, https://openlibrary.org/isbn/9781119511755

· 70. Divers SJ. Empirical doses of antimicrobial drugs commonly used in reptiles. Exot DVM. 1998;1:23. | 88. Frye FL. Reptile Care: An Atlas of Diseases and Treatments. Neptune City, NJ: TFH Publications, Inc; 1991:1-637. — Source: Mader's Reptile and Amphibian Medicine and Surgery, 3rd Ed, p.1401 — SOURCE EDITION: Mader's Reptile and Amphibian Medicine and Surgery (Divers & Stahl) — ISBN 9780323482530, https://openlibrary.org/isbn/9780323482530

· 793. Rupley AE. Critical care of pet birds. Vet Clin North Am Exot Anim Pract. 1998;1:11-41. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.405 doi:10.1016/S1094-9194(17)30153-6 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· 802. Samour J. Pharmaceutics commonly used in avian medicine. In: Samour J, eds. Avian Medicine; Mosby, Philadelphia, PA; 2000:388-418. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.405 doi:10.1016/b978-0-7234-3832-8.00023-7 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Avian Medicine (Samour) — ISBN 9780723438328, https://openlibrary.org/isbn/9780723438328

· Coles BH. Prescribing for exotic birds. In: Bishop Y, eds. The Veterinary Formulary, 5th ed., Pharmaceutical Press, London, UK; 2001:99-105.; Rupley AE. Critical care of pet birds. Vet Clin North Am Exot Anim Pract. 1998;1:11- 41. doi:10.1016/S1094-9194(17)30153-6 — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.405 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Divers SJ. Empirical doses of antimicrobial drugs commonly used in reptiles. Exot DVM. 1998;1:23. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.212 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Divers SJ. Empirical doses of antimicrobial drugs commonly used in reptiles. Exot DVM. 1998;1:23.; Hedley J. BSAVA Small Animal Formulary: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, UK; 2020. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.212 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Elviss NC, Williams LK, Jørgensen F, et al. Amoxicillin therapy of poultry flocks: effect upon the selection of amoxicillin-resistant commensal Campylobacter spp. J Antimicrob Chemother. 2009;64:702-711. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.617 doi:10.1093/jac/dkp277 — Carpenter's Exotic Animal Formulary 6th ed, Table 6.1 (Antimicrobial Agents Used in Backyard Poultry, Gamebirds, and Waterfowl.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Backyard Poultry Medicine and Surgery — ISBN 9781119511755, https://openlibrary.org/isbn/9781119511755

· FARAD Withdrawal Guidelines [2026-08-05: FARAD (Food Animal Residue Avoidance Databank, https://www.farad.org/) publishes meat/milk WITHDRAWAL intervals for extralabel use — it is not a dosing authority. This dose could not be corroborated in Plumb's 10th ed (held) for this species, unlike the other 15 FARAD-cited rules. Needs a product label or primary reference before it can be considered sourced.] — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207

· Haneveld-v Laarhoven MA, Dorrestein GM. IME-sudden high mortality in canaries. J Assoc Avian Vet. 1990;4:82. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.406 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Hedley J. BSAVA Small Animal Formulary: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, UK; 2020. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.212 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.1 (Antimicrobial Agents Used in Reptiles.a,b). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Hillyer EV, Brown SA. Ferrets. In: Birchard SJ, Sherding RG, eds. Saunders Manual of Small Animal Practice; WB Saunders, Philadelphia, PA; 1994:1317-1344. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.931 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 11.1 (Antimicrobial Agents Used in Ferrets). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· ISCAID UTI Guidelines; 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) printed p.69, Amoxicillin monograph spanning p.67-69; page located 2026-08-05 from the book's own running heads, and carries this exact dose under the matching species heading. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207

· Leib MS. Helicobacter Gastritis: Does it Cause Vomiting in Dogs and Cats? In: Western States Veterinary Conference Proceedings; 2012. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.96 (2026-08-01). — Plumb's 10th ed (held) printed p.67, Amoxicillin monograph spanning p.67-69; 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; Zoo Animal and Wildlife Immobilization and Anesthesia — ISBN 9780813811833, https://openlibrary.org/isbn/9780813811833

· Morrisey JK, Carpenter JW, et al. Formulary. In: Quesenberry KE, OrcuttCJ, Mans C, et al. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.703 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 7.1 (Antimicrobial and Antifungal Agents Used in Sugar Gliders). Located 2026-08-05: the only table covering this species in which the drug's own row prints this dose. The copy held is an ebook conversion with no printed page numbers, so the table is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350

· 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) printed p.67, Amoxicillin monograph spanning p.67-69; 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 — Plumb's Veterinary Drug Handbook, 10th ed (held), Amoxicillin monograph, printed p.69 (corpus PDF p.96), DOGS: "Systemic infections (extra-label): 11 - 22 mg/kg PO every 8 hours." Corroborated: Papich MG, Saunders Handbook of Veterinary Drugs, 4th ed, printed p.39: "Dogs and Cats • 6.6-20 mg/kg q8-12h PO"; BSAVA Small Animal Formulary, 10th ed, Part A: "Oral: 10 mg/kg p.o. q8-12h." [CEILING REDUCED 2026-08-12, two readers — the only 30 mg/kg amoxicillin figures in the cited book sit under the FERRETS heading.]

· 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) printed p.67, Amoxicillin monograph spanning p.67-69; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — figure located 2026-08-05 at Plumb's 10th ed printed p.69, Amoxicillin monograph; the page cited previously does not carry it. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 | ORIGINAL SOURCE THE BOOK CITES (2026-08-20): the dose row carries superscript 9 — "20 mg/kg PO every 8 hours9 Use ammonium chloride with caution in pa" — which resolves in the monograph's own reference list to: Benson KK, Quimby JM, Dowers KL, et al. Pilot study of side effects and serum and urine concentrations of amoxicillin-clavulanic acid in azotemic and non-azotemic cats. Journal of Feline Medicine & Surgery. 2019;22(8):729-735. This records what the handbook attributes the figure to. It is NOT a statement that the reference was read or that it validates the dose.

· 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) printed p.67, Amoxicillin monograph spanning p.67-69; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — figure located 2026-08-05 at Plumb's 10th ed printed p.69, Amoxicillin monograph; the page cited previously does not carry it. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 — Plumb's Veterinary Drug Handbook, 10th ed (held), Amoxicillin monograph, printed p.69 (corpus PDF p.96), CATS: "Systemic infections (extra-label): 11 - 22 mg/kg PO every 8 hours." [CEILING REDUCED 2026-08-12, two readers — 22 mg/kg is the highest feline mg/kg figure printed anywhere in the CATS block.]

· 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) printed p.67, Amoxicillin monograph spanning p.67-69; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — figure located 2026-08-05 at Plumb's 10th ed printed p.69, Amoxicillin monograph; the page cited previously does not carry it. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 — Plumb's Veterinary Drug Handbook, 10th ed (held), Amoxicillin monograph, printed p.69 (corpus PDF p.96), CATS: "Systemic infections (extra-label): 11 - 22 mg/kg PO every 8 hours; duration of treatment should be […]" [RANGE REDUCED 2026-08-12, two readers — both bounds fall. The CATS block on that page carries no dental or periodontal indication; that framing question is unresolved.]

· Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted), Amoxicillin, printed p.69 (corpus plumb p.96) — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 — Plumb's Veterinary Drug Handbook, 10th ed (held), Amoxicillin monograph, printed p.69 (corpus PDF p.96), DOGS: "Borreliosis (Lyme disease) (extra-label): 20 mg/kg PO 3 times daily for 30 days." [INDICATION, DURATION AND NOTES CORRECTED 2026-08-12, two readers — the cited page prints no dental or periodontal indication for plain amoxicillin.]

· Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted), p.96, DOGS — 'Systemic infections (extra-label): 11 - 22 mg/kg PO every 8 hours' — Plumb's 10th ed (held) printed p.69, Amoxicillin monograph spanning p.67-69; page located 2026-08-05 from the book's own running heads, and carries this exact dose under the matching species heading. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207

· Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.34. — LOCATOR CONVENTION 2026-08-07: the bare 'p.34' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.20; verified by finding the drug named there. If you are holding the book, turn to p.20. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712

· Verified against Papich/Saunders Handbook of Veterinary Drugs, 4th Ed, p.67 (2026-08-01). — 21 CFR § 522.88 (Amoxicillin), conditions of use for Cattle: 6.6139-11.0231 mg/kg (the regulation prints this per pound; converted at 2.2046226 lb/kg). Related tolerances: 21 CFR § 556.38. Retrieved from the eCFR API, snapshot 2026-01-01. https://www.ecfr.gov/current/title-21/section-522.88 — LOCATOR CONVENTION 2026-08-07: the bare 'p.67' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.39; verified by finding the drug named there. If you are holding the book, turn to p.39. — SOURCE EDITION: Saunders Handbook of Veterinary Drugs — ISBN 9780323244855, https://openlibrary.org/isbn/9780323244855

· Visser C, Wijnbergen A, Bleich A. Maeuse und ratten. In: Fehr M, Sassenburg L, Zwart P, eds. Krankheiten der Heimtiere, Schluetersche Verlagsgesellschaft, Hannover, Germany; 2015. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.770 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 9.1 (Antimicrobial and Antifungal Agents Used in Rodents.a). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929

· Weese JS, Blondeau J, Boothe D, et al. International Society for Companion Animal Infectious Diseases (ISCAID) guidelines for the diagnosis and management of bacterial urinary tract infections in dogs and cats. Vet J. 2019;247:8-25. Distributed by John Wiley & Sons, Inc. doi:10.1016/j.tvjl.2019.02.008 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.96 (2026-08-01). — Plumb's 10th ed (held) printed p.67, Amoxicillin monograph spanning p.67-69; 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

Amoxicillin

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Amoxicillin

Drug Class

Routes

Indications

Mechanism of Action

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Species with Amoxicillin dosing data (48 dose rules)

Evidence levels across 48 dose rules

Backed by 35 published sources

Sample dosing (2 of 48 cited rules)

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Other formulations of Amoxicillin

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