Gastrointestinal · Drug monograph
Capromorelin: veterinary dose and monograph
Capromorelin is a veterinary gastrointestinal drug. A first-in-class oral APPETITE STIMULANT — a ghrelin-receptor (growth-hormone-secretagogue receptor) agonist that mimics "hunger hormone" ghrelin to stimulate appetite and food intake, with a secondary effect of increasing growth… Indications include inappetence / poor appetite in dogs (Entyce); management of weight loss in cats with chronic kidney disease (Elura); appetite stimulation in a range of inappetent patients (off-label across species). This monograph lists 3 reference doses for dogs and cats, each with route, frequency and source.
At a glance
- Drug class
- Gastrointestinal
- Also known as
- Entyce, Elura
- Species with doses
- Dogs and Cats
- General dose range
- 2–3 mg/kg PO q24h — check the species tables for the indication
- Routes
- PO
- Last reviewed
- 1 October 2026
Indications
- Inappetence / poor appetite in dogs (Entyce)
- Management of weight loss in cats with chronic kidney disease (Elura)
- Appetite stimulation in a range of inappetent patients (off-label across species)
Capromorelin dose by species
Doses are per administration unless stated. mg/kg doses scale with body weight; per-animal, per-quarter and infusion-rate doses are shown as the reference writes them.
Dogs
| Indication | Dose | Route | Frequency | Duration |
|---|---|---|---|---|
| Inappetence (Entyce) | 3 mg/kg | PO | q24h | — |
- Inappetence (Entyce): Papich 5e and the Entyce label: 3 mg/kg PO once daily (30 mg/mL solution). Plumb’s 10e p.183 (label dosage; FDA-approved): appetite stimulation 3 mg/kg PO once daily — effectiveness has not been evaluated beyond 4 days of treatment.
Cats
| Indication | Dose | Route | Frequency | Duration |
|---|---|---|---|---|
| Weight loss management in CKD (Elura) | 2 mg/kg | PO | q24h | — |
| Appetite stimulation | 1–3 mg/kg | PO | q24h | up to 21 days |
- Weight loss management in CKD (Elura): Elura label and Papich 5e: 2 mg/kg PO once daily (20 mg/mL feline solution). Expect transient hypersalivation or vomiting initially. Plumb’s 10e p.183 (label dosage; FDA-approved): 2 mg/kg PO once daily 30 minutes before routine feeding; re-dose if only a partial dose was taken or the cat vomits within 15 minutes.
- Appetite stimulation: Plumb’s 10e p.183 (extra-label): appetite stimulation in cats — 1–3 mg/kg PO once daily for up to 21 days.
Contraindications
Known hypersensitivity. Hepatic impairment (hepatically metabolised — caution/lower exposure). Use with awareness in patients where increased GH/IGF-1 is undesirable. Confirm there is no mechanical reason for inappetence (e.g. obstruction) that needs treating instead.
Species-specific warnings
Cats: Use the cat-specific product (Elura 20 mg/mL) at 2 mg/kg; expect transient hypersalivation/vomiting at the start of therapy.
Adverse effects
- Hypersalivation / drooling (common, especially first doses)
- Vomiting, diarrhoea
- Lethargy; occasional hypotension/increased heart rate
- Transient increases in growth hormone/IGF-1
Drug interactions
- CYP3A4 inhibitors (ketoconazole, etc.): may raise capromorelin levels
- Drugs that are CYP3A substrates: capromorelin can affect their metabolism
- No major other interactions at label use
Pregnancy and lactation
Not established for breeding/pregnant/lactating animals — avoid unless clearly needed.
Monitoring
- Food intake / body weight response
- GI tolerance (hypersalivation/vomiting — usually settles)
- Underlying cause of inappetence (treat it, not just the symptom)
Toxicity and overdose
Well tolerated; overdose mainly intensifies GI signs (hypersalivation, vomiting, diarrhoea) and may cause lethargy and transient cardiovascular effects (hypotension, increased heart rate) plus larger GH/IGF-1 rises. No specific organ toxicity at therapeutic use.
Management: Supportive — manage GI signs and any hypotension with fluids; effects are self-limiting. No specific antidote needed.
Clinical pearls
- A purpose-built, once-daily oral appetite stimulant — Entyce for inappetent dogs, Elura for CKD cats losing weight; often works within hours
- Hypersalivation/drooling and some vomiting are common early and usually settle — warn owners
- A targeted modern alternative to mirtazapine/cyproheptadine, with a clean mechanism (ghrelin-receptor agonism)
- Always pursue and treat the underlying cause of the inappetence rather than relying on the stimulant alone
Mechanism of action
A ghrelin (growth-hormone-secretagogue) receptor agonist that activates GHS-R1a receptors in the hypothalamus (stimulating appetite/food-seeking behaviour, mimicking endogenous ghrelin) and in the pituitary (transiently increasing growth-hormone and downstream IGF-1 secretion). The appetite effect is the therapeutic target; it also has mild prokinetic/gastric-emptying effects.
Formulations and products
- Oral solution 30 mg/mL (Entyce, dogs)
- Oral solution 20 mg/mL (Elura, cats)
- Entyce (Elanco (Aratana)) — 30 mg/mL oral solution, Oral solution
- Elura (Elanco) — 20 mg/mL oral solution, Oral solution
Storage
Oral solution: 15–30 °C per label; use within the labelled period after opening (e.g. ~56 days). Keep tightly closed.
Before you use this dose
Reference doses for veterinary professionals. Confirm the dose against the product label, the patient’s condition, current guidance and local regulations before use; the attending veterinarian remains responsible for every clinical decision.
Frequently asked questions
What is the dose of Capromorelin for dogs?
Reference doses for Capromorelin in dogs: 3 mg/kg PO q24h (Inappetence (Entyce)). Confirm against the label and the patient before use.
What is the dose of Capromorelin for cats?
Reference doses for Capromorelin in cats: 2 mg/kg PO q24h (Weight loss management in CKD (Elura)); 1–3 mg/kg PO q24h for up to 21 days (Appetite stimulation). Confirm against the label and the patient before use.
When should Capromorelin not be used?
Known hypersensitivity. Hepatic impairment (hepatically metabolised — caution/lower exposure). Use with awareness in patients where increased GH/IGF-1 is undesirable. Confirm there is no mechanical reason for inappetence (e.g. obstruction) that needs treating instead.
What are the side effects of Capromorelin in animals?
Hypersalivation / drooling (common, especially first doses); Vomiting, diarrhoea; Lethargy; occasional hypotension/increased heart rate; Transient increases in growth hormone/IGF-1.
Sources
- Plumb's Veterinary Drug Handbook
- Merck Veterinary Manual, 11th edition
- Papich, Papich Handbook of Veterinary Drugs, 5th edition
Last reviewed · VetMasterJi