Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.
Doxycycline is dosed at 5–10 mg/kg PO q24-48h in ball pythons, per Gibbons PM, Klaphake E, Carpenter JW. Reptiles. In: Carpenter JW, ed. Exotic Animal Formulary. 4th ed. St. Louis: Elsevier; 2013:83-182. // 189. Divers SJ. Merck Veterinary Manual online - Antimicrobial drugs used in reptiles; 2017 (cited for the same 5-10 mg/kg q24h PO figure at Mader p.878, Table 72.1) — Verified against Mader's Reptile and Amphibian Medicine and Surgery, 3rd Ed, p.1402 (2026-08-01). — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Mader's Reptile and Amphibian Medicine and Surgery (Divers & Stahl) — ISBN 9780323482530, https://openlibrary.org/isbn/9780323482530. Verify against current literature before clinical use.
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
Backed by 43 published sources
· 1019. Zwijnenberg RJ.G, Vulto AG, Van Miert AS, et al. Evaluation of antibiotics for racing pigeons (Columba livia var. domestica) available in the Netherlands. J Vet Pharmacol Therap. 1992;15:364-378. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.411 — 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
· 130. Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.771 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.1 (Antimicrobial and Antifungal Agents Used in Rodents.a). 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, ; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350,
Sample dosing (2 of 60 cited rules)
A dog/cat sample is shown here. Cited dosing for all 37 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.
Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
Nelson C, McCall JW, Jones S, Moorhead AR. American Heartworm Society Current Canine Guidelines for the Prevention, Diagnosis, and Management of Heartworm (Dirofilaria immitis) Infection in Dogs. American Heartworm Society website; https://www.heartwormsociety.org/veterinary-resources/american-heartworm-society-guidelines. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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,
Upgrade to Pro or Student to unlock the full dose ranges and frequency for every species. The drug's mechanism, warnings, indications, and cited sources are free to read.
· 130. Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.771 — 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
· 207. De Herdt P, Devriese LA, De Groote B, et al. Antibiotic treatment of Streptococcus bovis infections in pigeons. Proc Eur Conf Avian Med Surg; 1993:297-304. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.412 doi:10.1080/03079459308418947 — 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
· 5. Greenacre, C.B., Luna, G.L., and Morishita, T.M. (2018). Backyard poultry and waterfowl. In: Exotic Animal Formulary, 5e (ed. J.W. Carpenter), 377-432. St. Louis, Missouri: Elsevier. — Source: Greenacre & Morishita, Backyard Poultry Medicine and Surgery, 2nd Ed, p.588 — 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
· 768. Ritchie BW, Harrison GJ. Formulary. In: Ritchie BW, Harrison GJ, Harrison LR, Abridged, eds. Avian Medicine: Principles and Application; Wingers Publishing, Lake Worth, FL; 1997:227-253. | 238. Dorrestein GM. Antimicrobial drug use in companion birds. In: PrescottJF, Baggot JD, eds. Antimicrobial Therapy in Veterinary Medicine, 2nd ed., Iowa State University Press, Ames, IA; 1993:491-506. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.411 doi:10.1002/9781118675014.ch35 — 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 — SOURCE ROW: Carpenter's Exotic Animal Formulary 6th ed, corpus p.411 — "Doxycycline ... 7.5-8 mg/kg PO q12-24h(768) — Passerines, nectar feeders, pigeons/PK; administer without grit." A zebra finch is a passerine and the served range and interval match exactly. NOTE: the row carries the book's PK marker, so the figure originates in pharmacokinetic work - but unlike a bare single-dose figure it is printed WITH a dosing interval, and the drug-level comment on the same page names this rule's indication: "drug of choice for Chlamydia and Mycoplasma".
· 99. Gibbons PM, Klaphake E, Carpenter JW. Reptiles. In: Carpenter JW, ed. Exotic Animal Formulary. 4th ed. St. Louis: Elsevier -- 2013:83-182. Source: Mader Reptile and Amphibian Medicine and Surgery, 3rd Ed, Chapter 127 Reptile Formulary, TABLE 127.1 (Antimicrobial Agents), printed p.1192 (= corpus/PDF page 1402). SOURCE EDITION: Mader Reptile and Amphibian Medicine and Surgery (Divers and Stahl) -- ISBN 9780323482530
· Anadón A, Martínez-Larrañaga MR, Díaz MJ, et al. Pharmacokinetics of doxycycline in broiler chickens. Avian Pathol. 1994;23:79-90. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.621 doi:10.1080/03079459408418976 — 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
· Bauck L, Hoefer HL. Avian antimicrobial therapy. Semin Avian Exot Pet Med. 1993;2:17-22. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.412 — 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
· Bonenberger T. Typical cat bite abscess, or not: chronic draining tracts & nodules. Presented at: Western Veterinary Conference; 2009. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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; Zoo Animal and Wildlife Immobilization and Anesthesia — ISBN 9780813811833, https://openlibrary.org/isbn/9780813811833
· Carpenter 6e — Carpenter's Exotic Animal Formulary 6th ed, Table 10.25. 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. — figure located 2026-08-05 at Carpenter's 6th ed, Table 11.1 (Antimicrobial Agents Used in Ferrets); the page cited previously does not carry it. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929
· Carpenter 6e — Carpenter's Exotic Animal Formulary 6th ed, Table 9.1 (Antimicrobial and Antifungal Agents Used in Rodents.a). 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
· Carpenter's Exotic Animal Formulary, 6th Ed, p.842, ref 166 = Morissey JM, Carpenter JW. Appendix: Formulary. In: Ferrets, Rabbits and Rodents, 4th ed, 2021:620-630 (Table A.1, p.621: Rabbits 2.5 mg/kg PO q12h) — Carpenter's Exotic Animal Formulary 6th ed, Table 10.1 (Antimicrobial Agents Used in Rabbits.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; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350
· Carpenter's Exotic Animal Formulary, 6th Ed, p.842, ref 166 = Morissey JM, Carpenter JW. Appendix: Formulary. In: Quesenberry KE, Orcutt CJ, Mans C, et al. Ferrets, Rabbits and Rodents, 4th ed. Elsevier; 2021:620-630 (the same row appears there in Table A.1, p.621) — Carpenter's Exotic Animal Formulary 6th ed, Table 10.1 (Antimicrobial Agents Used in Rabbits.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; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350
· Carpenter's Exotic Animal Formulary, 6th ed. (2023), p.771, Table 9.1 Antimicrobial and Antifungal Agents Used in Rodents; corroborated by Ferrets, Rabbits, and Rodents, 4th ed., Appendix Table A.1, PDF p.633 (printed p.621), Guinea Pigs/Chinchillas column. — 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; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350
· Carrade DD, Foley JE, Borjesson DL, Sykes JE. Canine granulocytic anaplasmosis: a review. J Vet Intern Med. 2009;23:1129-1141. doi:10.1111/j.1939-1676.2009.0384.x — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
· Current Therapy in Avian Medicine and Surgery (ISBN 9781455746712), Chapter 2 Infectious Disease, avian chlamydiosis, THERAPY section, PRINTED p.90: "Precise dosages cannot be extrapolated for other species, however, 25 to 30 mg/kg every 24 hours is […]" The species-specific list this sentence qualifies ends on printed p.89. carpenter's 6th ed Table 5.1 does NOT print a 25-30 mg/kg q24h doxycycline row - the whole block was read across two pages. DISAGREEMENT ON THE RECORD: samour printed p.640 assigns 25-30 mg/kg to AFRICAN GREY PARROTS and 40-50 mg/kg to cockatoos - the reverse species assignment. Two held books disagree on which psittacine gets 25-30, and this rule is a cockatoo.
· Divers TJ, Gardner RB, Madigan JE, et al. J Vet Intern Med. 2018;32:617-632. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.464 (2026-08-01). — Plumb's 10th ed (held) printed p.437, Doxycycline monograph spanning p.433-437; 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
· Dorrestein GM. Antimicrobial drug use in companion birds. In: PrescottJF, Baggot JD, eds. Antimicrobial Therapy in Veterinary Medicine, 2nd ed., Iowa State University Press, Ames, IA; 1993:491-506. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.412 — 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
· FARAD Withdrawal Guidelines — dose corroborated 2026-08-05 in Plumb's Veterinary Drug Handbook 10th ed (held), Doxycycline monograph, printed p.433. NOTE: FARAD publishes meat/milk WITHDRAWAL intervals for extralabel use; it is not the source of the dose itself, so the dose is cited to Plumb's and FARAD retained for the withdrawal guidance. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207
· Gibbons PM, Klaphake E, Carpenter JW. Reptiles. In: Carpenter JW, ed. Exotic Animal Formulary. 4th ed. St. Louis: Elsevier; 2013:83-182. // 189. Divers SJ. Merck Veterinary Manual online - Antimicrobial drugs used in reptiles; 2017 (cited for the same 5-10 mg/kg q24h PO figure at Mader p.878, Table 72.1) — Verified against Mader's Reptile and Amphibian Medicine and Surgery, 3rd Ed, p.1402 (2026-08-01). — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Mader's Reptile and Amphibian Medicine and Surgery (Divers & Stahl) — ISBN 9780323482530, https://openlibrary.org/isbn/9780323482530
· Gibbons PM, Klaphake E, Carpenter JW. Reptiles. In: Carpenter JW, ed. Exotic Animal Formulary. 4th ed. St. Louis: Elsevier; 2013:83-182. — Verified against Mader's Reptile and Amphibian Medicine and Surgery, 3rd Ed, p.1402 (2026-08-01). — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Mader's Reptile and Amphibian Medicine and Surgery (Divers & Stahl) — ISBN 9780323482530, https://openlibrary.org/isbn/9780323482530
· Greenacre, C.B., Luna, G.L., and Morishita, T.M. (2018). Backyard poultry and waterfowl. In: Exotic Animal Formulary, 5e (ed. J.W. Carpenter), 377-432. St. Louis, Missouri: Elsevier. — Source: Greenacre & Morishita, Backyard Poultry Medicine and Surgery, 2nd Ed, p.588 — 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
· Greene C, Hartmannn K, Calpin J. Appendix 8: antimicrobial drug formulary. In: Greene C, ed. Infectious Disease of the Dog and Cat. Elsevier; 2006:1186-1333. doi:10.1016/b978-1-4160-2406-4.50080-6 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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 — Plumb's Veterinary Drug Handbook, 10th ed (held), Doxycycline monograph, printed p.436 (corpus PDF p.463), CATS: "Mycoplasma haemofelis ... (extra-label): 10 mg/kg PO once daily or 5 mg/kg PO every 12 hours for 2 to 4 weeks." Corroborated: Papich MG, Saunders Handbook of Veterinary Drugs, 4th ed, printed p.276: "5 mg/kg q12h PO or IV. 10 mg/kg q24h PO." [CEILING REDUCED 2026-08-12, two readers — the page prints two alternative regimens, and 10 mg/kg belongs to the q24h arm, not this row's q12h arm. The primary reference, Greene Appendix 8 (2006), is not held and was not retrieved.]
· Hawkins MG, Barron H, Speer BL, et al. Birds. In: Carpenter JW, eds. Exotic Animal Formulary, 4th ed., Elsevier Saunders, St. Louis, MO; 2013:183-437. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.411 — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Current Therapy in Avian Medicine and Surgery — ISBN 9781455746712, https://openlibrary.org/isbn/9781455746712
· Hawkins MG, Barron H, Speer BL, et al. Birds. In: Carpenter JW, eds. Exotic Animal Formulary, 4th ed., Elsevier Saunders, St. Louis, MO; 2013:183-437. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.412 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 5.1 (Antimicrobial Agents Used in Birds.a). 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; Current Therapy in Avian Medicine and Surgery — ISBN 9781455746712, https://openlibrary.org/isbn/9781455746712
· Lappin M. Chronic feline infectious disease. Presented at: Western Veterinary Conference; 2006. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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; Zoo Animal and Wildlife Immobilization and Anesthesia — ISBN 9780813811833, https://openlibrary.org/isbn/9780813811833
· Lappin M. Protozoal and miscellaneous infections. In: Ettinger S, Feldman E, eds. Textbook of Veterinary Internal Medicine: Diseases of the Dog and Cat. Vol 1. WB Saunders; 2000:408-417. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
· Lappin MR, Blondeau J, Boothe D, et al. Antimicrobial use guidelines for treatment of respiratory tract disease in dogs and cats: Antimicrobial Guidelines Working Group of the International Society for Companion Animal Infectious Diseases. J Vet Intern Med. 2017;31:279-294. doi:10.1111/jvim.14627 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
· Lewis SR, Zimmerman K, Dascanio JJ, Pleasant RS, Witonsky SG. Equine granulocytic anaplasmosis: a case report and review. J Equine Vet Sci. 2009;29:160-166. doi:10.1016/j.jevs.2009.01.002 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.464 (2026-08-01). — Plumb's 10th ed (held) printed p.437, Doxycycline monograph spanning p.433-437; 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
· Morrisey JK, Carpenter JW, et al. Formulary. In: Quesenberry Q, OrcuttC, 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.733 (2026-08-01). — 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
· Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.771 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.1 (Antimicrobial and Antifungal Agents Used in Rodents.a). 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
· Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. 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.771 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 9.1 (Antimicrobial and Antifungal Agents Used in Rodents.a). 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
· Nelson C, McCall JW, Jones S, Moorhead AR. American Heartworm Society Current Canine Guidelines for the Prevention, Diagnosis, and Management of Heartworm (Dirofilaria immitis) Infection in Dogs. American Heartworm Society website; https://www.heartwormsociety.org/veterinary-resources/american-heartworm-society-guidelines. doi:10.1016/j.vetpar.2005.07.008 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
· 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.436, Doxycycline monograph spanning p.433-437; 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 — Papich MG, Saunders Handbook of Veterinary Drugs, 4th ed, Doxycycline, Small Animal Dosage, printed p.276 (corpus PDF p.304): "Dogs and Cats • 5 mg/kg q12h PO or IV. 10 mg/kg q24h PO. • Rickettsia (dogs): 5 mg/kg q12h. • […]" Corroborated: Plumb's Veterinary Drug Handbook, 10th ed (held), printed p.436 (corpus PDF p.463), whose only canine IV doxycycline figure is 5 mg/kg every 12 hours, and which states "Doxycycline IV is not recommended unless GI adverse effects prevent PO administration and other […]" [CEILING REDUCED 2026-08-12, two readers — every printed canine 10 mg/kg tick-borne figure is oral and at a 24-hour interval.]
· Prus SE, Clubb SL, Flammer K. Doxycycline plasma concentrations in macaws fed a medicated corn diet. Avian Dis. 1992;36:480-483. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.412 — 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
· Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.129. — LOCATOR CONVENTION 2026-08-07: the bare 'p.129' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.115; verified by finding the drug named there. If you are holding the book, turn to p.115. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712
· 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.412 (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
· Samour, Avian Medicine, 3rd Ed. (raptor formulary appendix), p.652. Row as printed binds this dose to raptors on its own line: "Doxycycline Ronaxan tablets Raptors PO 50 mg/kg bid for 3-5 d Drug of choice for the treatment of". Located by line-level extraction and then read on the page; the species binding is the row's own species column, not text proximity.
· Sanchez-Migallon Guzman D, Diaz-Figueroa O, Tully T Jr., et al. Evaluating 21-day doxycycline and azithromycin treatments for experimental Chlamydophila psittaci infection in cockatiels (Nymphicus hollandicus). J Avian Med Surg. 2010;24:35-45. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.412 (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
· Tekeli IO, Turk E, Durna Corum D, et al. Pharmacokinetics, bioavailability and tissue residues of doxycycline in Japanese quails (Coturnix coturnix japonica) after oral administration. Food Addit Contam Part A. 2020;37(12):2082-2092. doi:10.1080/19440049.2020.1825827https://europepmc.org/article/MED/33066710
· Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.463 (2026-08-01). — Plumb's 10th ed (held) printed p.436, Doxycycline monograph spanning p.433-437; 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
· Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.464 (2026-08-01). — Plumb's 10th ed (held) printed p.437, Doxycycline monograph spanning p.433-437; 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
Antibiotic, analgesic, and respiratory-disease dosing for Rattus norvegicus var. domestica. Mycoplasma pulmonis is the dominant pathogen of pet rat practice — most prescribing decisions trace back to it.