ExoticRx · exoticrx.com/drugs/chorionic-gonadotropin
US brand names:Chorulon, Pregnyl
Chorionic Gonadotropin is dosed at 500–1000 IU/kg IM days 1, 3, 7; repeat q3-6wk prn in african grey parrots, per 391. 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.461 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.7 (Hormones and Steroids Used in Birds). 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. — LOCATOR CONVENTION 2026-08-07: the bare 'p.461' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.446; verified by finding the drug named there. If you are holding the book, turn to p.446. — 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. Verify against current literature before clinical use.
Mimics luteinizing hormone (LH) action. Induces ovulation and luteinization of ovarian follicles. Stimulates testosterone production in males.
Used for ovulation induction, cryptorchidism diagnosis, and luteal support. Antibody formation with repeated use reduces efficacy. Anaphylaxis rare.
Species references:All African Clawed Frog drugsAll African Grey Parrot drugsAll Axolotl drugsAll Dog (Domestic) drugsAll Fire Salamander drugsAll Guinea Pig drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 8 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 |
|---|---|---|---|---|---|
| Dog (Domestic) | IM | 250–1000 IU per dog | once or per protocol | Moderate | Kawakami E, Hori T, Tsutsui T. Changes in plasma luteinizing hormone, testosterone and estradiol-17β levels and semen quality after injections of gonadotropin releasing hormone agonist and human chorionic gonadotropin in three dogs with oligozoospermia and two dogs with azoospermia. Anim Reprod Sci. 1997;47(1-2):157-167. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.287 (2026-08-01). — Plumb's 10th ed (held) printed p.259, Chorionic Gonadotropin monograph spanning p.259-260; 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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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.