Merck Manual

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Miscellaneous Drugs for Reptiles

Miscellaneous Drugs for Reptiles

Drug

Dosage

Condition

Allopurinol

20–25 mg/kg/day, PO

Gout, reduces uric acid production

Aluminium hydroxide

100 mg/kg, PO, every 12–24 hr

Reduces blood phosphorus levels

Aminophylline

2–4 mg/kg, IM

Respiratory disease when bronchodilation required

Argipressin (vasopressin)

0.01–1 mcg/kg

Egg binding (more potent than oxytocin)

Ascorbic acid

10–200 mg/kg, IM, as required

Ulcerative stomatitis

Calcitonin

1.5 units/kg, SC, tid

50 units/kg, IM, repeat after 2 wk

Hypercalcemia, fluid therapy also recommended

Secondary hyperparathyroidism

Calcium gluconate (10 mg/mL)

100 mg/kg, IM, qid, or 400 mg/kg, IV, intraosseous, given over 24 hr

Hypocalcemia in iguanas; high phosphorus concentration may cause soft-tissue mineralization

Cimetidine

4 mg/kg, PO, tid-qid

Regurgitation, vomiting, gastritis, GI ulceration

Cisapride

0.5–2 mg/kg/day, PO

GI motility modification; not recommended to use with clarithromycin in tortoises

Cholecalciferol

100–1,000 units/kg, IM, as a single dose

Hypocalcemia, fibrous osteodystrophy in iguanas

Cyanocobalamin

50 mcg/kg, SC, IM

Appetite stimulation

Dexamethasone

30–150 mcg/kg, IM, IV, intraosseous

Inflammation, shock, beware of immunosuppression

Dinoprost (prostaglandin)

500 mcg/kg, IM, as a single dose

Egg binding in snakes

Doxapram

5–10 mg/kg, IV, intraosseous

Respiratory stimulation

Flunixin

100–500 mcg/kg, IM, IV, once to twice daily

Inflammation, pain

Furosemide

2–5 mg/kg, IM, IV, once to twice daily

Diuresis (effective despite lack of loop of Henle in reptiles)

Iodine

2–4 mg/kg, PO, every 7 days

Prophylaxis for goitrogenic diets

Iron

12 mg/kg, IM, every 7 days (alligators)

Anemia in alligators

Levothyroxine

20 mcg/kg, PO, on alternate days

Hypothyroidism in tortoises

Metoclopramide

60 mcg/kg/day, PO, for 7 days

Stimulation of gastric emptying in tortoises

Prednisolone

1–2 mg/kg, PO

Anti-inflammatory, reduction of nephrocalcinosis, beware of immunosuppression

Selenium

25–500 mcg/kg, IM

Deficiency in lizards

Sucralfate

0.5–1 g/kg, PO, tid-qid

Gastric irritation/ulceration

Thiamine

50–100 mg/kg, IM

Thiamine deficiency

Vitamin A

5,000 units/kg, PO, every 7 days

Hypovitaminosis A (iatrogenic hypervitaminosis A may result from repeated treatment)