Butorphanol for Green Iguanas
Reptile · Iguana iguana · typical adult weight 1.00–5.00 kg
Butorphanol is dosed at 1 mg/kg IM See source in green iguanas, per Minimum alveolar concentration of isoflurane in green iguanas and the effect of butorphanol on minimum alveolar concentration. J Am Vet Med Assoc. 2003;222(11):1559. PMID: 12784962; DOI: 10.2460/javma.2003.222.1559. URL: https://pubmed.ncbi.nlm.nih.gov/12784962/. Butorphanol is used in green iguanas for Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia, Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia; adverse effect: delayed righting reflex. Routes documented in green iguanas: IM. A typical adult green iguana weighs 1.00–5.00 kg. ExoticRx lists 3 cited dose rules for Butorphanol in green iguanas, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Torbugesic, Torbutrol
Dose ranges
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| IM | 1 mg/kg | See source | — | Weak | Minimum alveolar concentration of isoflurane in green iguanas and the effect of butorphanol on minimum alveolar concentration. J Am Vet Med Assoc. 2003;222(11):1559. PMID: 12784962; DOI: 10.2460/javma.2003.222.1559. URL: https://pubmed.ncbi.nlm.nih.gov/12784962/ |
| IM | 1.5 mg/kg | See source | Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia | Weak | A critical review on the pharmacodynamics and pharmacokinetics of non-steroidal anti-inflammatory drugs and opioid drugs used in reptiles. Vet Anim Sci. 2022;17:100267. PMID: 36043206; PMCID: PMC9420515; DOI: 10.1016/j.vas.2022.100267. (Table 7; original data cited as Greenacre et al., 2006) URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9420515/ |
| IM | 8 mg/kg | See source | Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia; adverse effect: delayed righting reflex | Weak | A critical review on the pharmacodynamics and pharmacokinetics of non-steroidal anti-inflammatory drugs and opioid drugs used in reptiles. Vet Anim Sci. 2022;17:100267. PMID: 36043206; PMCID: PMC9420515; DOI: 10.1016/j.vas.2022.100267. (Table 7; original data cited as Greenacre et al., 2006) URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9420515/ |
Need the exact dose for your patient?
These ranges are per kg. Enter your green iguana's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Mechanism of action
Kappa-opioid receptor agonist and mu-opioid receptor antagonist. Provides visceral analgesia and sedation.
Side effects & warnings
Short duration of action (1-2 hours). Better for visceral than somatic pain. Ceiling effect on analgesia. May cause sedation and mild respiratory depression.
Species-specific contraindications and adverse-reaction reports for green iguanas may differ from canine / feline reference data — consult the primary citations listed with each rule.
Frequently asked questions
What is the dose of Butorphanol for Green Iguanas?
Butorphanol dose ranges in green iguanas, with cited source references: IM 1 mg/kg See source; IM 1.5 mg/kg See source; IM 8 mg/kg See source.
How is Butorphanol administered in Green Iguanas?
Documented routes for Butorphanol in green iguanas: IM.
What conditions does Butorphanol treat in Green Iguanas?
Butorphanol is indicated in green iguanas for: Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia, Analgesia (antinociception) - electro-stimulation model; PROVIDED analgesia; adverse effect: delayed righting reflex.
What are the side effects of Butorphanol in Green Iguanas?
These are general warnings for Butorphanol across species; consult the green iguana dosing table above for species-specific guidance. Short duration of action (1-2 hours). Better for visceral than somatic pain. Ceiling effect on analgesia. May cause sedation and mild respiratory depression.
Other Analgesic drugs with green iguana dosing
Butorphanol dosing in other species
Why a species-specific page? Butorphanol pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in green iguanas — 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.