Bird · Amazona spp. · typical adult weight 0.35–0.55 kg
Pyrimethamine is dosed at 0.5–1 mg/kg PO q12h x 30 days in amazon parrots, per 673. Page DC, Schmidt RE, English JH, et al. Antemortem diagnosis and treatment of sarcocystosis in two species of psittacines. J Zoo Wildl Med. 1992;23:77-85. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.441 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.4 (Antiparasitic Agents Used in Birds). 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. Pyrimethamine is used in amazon parrots for Sarcocystosis. Routes documented in amazon parrots: PO. A typical adult amazon parrot weighs 0.35–0.55 kg. ExoticRx lists 1 cited dose rule for Pyrimethamine in amazon parrots, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Daraprim
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 0.5–1 mg/kg | q12h x 30 days | Sarcocystosis | Weak |
| 673. Page DC, Schmidt RE, English JH, et al. Antemortem diagnosis and treatment of sarcocystosis in two species of psittacines. J Zoo Wildl Med. 1992;23:77-85. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.441 — Carpenter's Exotic Animal Formulary 6th ed, Table 5.4 (Antiparasitic Agents Used in Birds). 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 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
The sources disagree for this combination. The ranges below do not overlap on a comparable route. This is not an error in one of them — published veterinary references differ, and reconciling them for a particular patient is a clinical judgement.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.5 | PO | BSAVA Manual of Psittacine Birds, 2nd edp.314 | 0.5 mg/kg orally q12h for 14 days | For Leucocytozoon infections |
| 0.5–1 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.273 | 0.5-1 mg/kg p.o. q12h for 28 days 1 |
| 0.5 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 5.4 | 0.5 mg/kg PO q12h ×14-28 days,232 |
| 0.5–1 | PO |
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These ranges are per kg. Enter your amazon parrot's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits dihydrofolate reductase in protozoa, blocking folic acid synthesis required for DNA replication. Synergistic with sulfonamides.
Bone marrow suppression possible — monitor CBC. Supplement with folinic acid (leucovorin). Teratogenic. Do not use in pregnant animals.
Species-specific contraindications and adverse-reaction reports for amazon parrots may differ from canine / feline reference data — consult the primary citations listed with each rule.
Pyrimethamine dose range in amazon parrots, with cited source references: PO 0.5–1 mg/kg q12h x 30 days. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Pyrimethamine in amazon parrots: PO.
Pyrimethamine is indicated in amazon parrots for: Sarcocystosis.
These are general warnings for Pyrimethamine across species; consult the amazon parrot dosing table above for species-specific guidance. Bone marrow suppression possible — monitor CBC. Supplement with folinic acid (leucovorin). Teratogenic. Do not use in pregnant animals.
Why a species-specific page? Pyrimethamine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in amazon parrots — 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.
| 0.5-1 mg/kg PO q12h ×2-4 days, then 0.25 mg/kg PO q12h × 30 days |
| 0.25 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 5.4 | 0.5-1 mg/kg PO q12h ×2-4 days, then 0.25 mg/kg PO q12h × 30 days |
| Dose (mg/kg feed) | Route | Source | As printed |
|---|---|---|---|
| 100 | — | Carpenter's Exotic Animal Formulary, 6th edTable 5.4 | 100 mg/kg feed |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.