Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
Lactulose is dosed at 0.5 mL/kg PO q12h in pet rats, per Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.801 (2026-08-01, PENDING REVIEW). Lactulose is used in pet rats for Constipation; hepatic disorders. Routes documented in pet rats: PO. A typical adult pet rat weighs 0.25–0.70 kg. ExoticRx lists 1 cited dose rule for Lactulose in pet rats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Kristalose, Cephulac
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 0.5 mL/kg | q12h | Constipation; hepatic disorders | Moderate | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.801 (2026-08-01, PENDING REVIEW) |
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These ranges are per kg. Enter your pet rat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Synthetic disaccharide broken down by colonic bacteria to lactic, acetic, and formic acids. Osmotic effect draws water into colon. Acidifies colonic contents, converting ammonia to non-absorbable ammonium.
Dose to effect (soft stool). Excessive doses cause diarrhea, flatulence, cramping. Monitor electrolytes with chronic use. Essential in hepatic encephalopathy management.
Species-specific contraindications and adverse-reaction reports for pet rats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Lactulose dose range in pet rats, with cited source references: PO 0.5 mL/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Lactulose in pet rats: PO.
Lactulose is indicated in pet rats for: Constipation; hepatic disorders.
These are general warnings for Lactulose across species; consult the pet rat dosing table above for species-specific guidance. Dose to effect (soft stool). Excessive doses cause diarrhea, flatulence, cramping. Monitor electrolytes with chronic use. Essential in hepatic encephalopathy management.
Why a species-specific page? Lactulose pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in pet rats — 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.