Cisapride for Conures: Uses, Dosing & Side Effects

This information is for educational purposes only. Never give your pet any medication without your veterinarian's guidance. Dosing, frequency, and safety depend on your pet's specific health profile.

Cisapride is a prescription GI motility medication. It helps move food and ingesta through the digestive tract by increasing coordinated smooth-muscle activity. In veterinary medicine, it is used when your vet wants to improve gut movement rather than treat the underlying cause by itself.

For conures and other parrots, cisapride is usually considered an extra-label, compounded medication. That matters because there is no standard bird-labeled product on the shelf in the United States. Your vet may prescribe a custom liquid or capsule from a compounding pharmacy so the dose matches your bird's body weight and the formulation is easier to give safely.

Cisapride is not a cure-all for a bird that is fluffed, not eating, vomiting, or passing abnormal droppings. Those signs can happen with obstruction, heavy metal toxicity, infection, reproductive disease, liver disease, or other emergencies. If your conure seems weak, is straining, has a swollen crop, or stops eating, see your vet promptly.

In conures, your vet may use cisapride to support crop stasis, delayed upper GI transit, ileus, or other motility problems when moving food through the digestive tract is part of the treatment plan. Avian references describe it as a gastroprokinetic drug, and published bird dosing references list oral use every 8 hours in birds.

It is often used as supportive care, not as a stand-alone answer. For example, a conure with poor crop emptying may also need heat support, fluids, nutritional support, imaging, fecal testing, bloodwork, or treatment for the primary problem. If there is a foreign body, impaction, perforation, or GI bleeding, increasing motility can be harmful.

Your vet may also choose cisapride when a bird has not responded well enough to diet changes and nursing care alone, or when they want a medication with broader GI motility effects than some other prokinetics. The exact reason depends on where your vet thinks the slowdown is happening and what is causing it.

Bird dosing must be individualized. A commonly cited avian reference range for cisapride is 0.5-1.5 mg/kg by mouth every 8 hours, but that does not mean every conure should receive that amount. Conures are small patients, and even tiny measuring errors can matter. Your vet will calculate the dose from your bird's current weight in grams, the compounded concentration, and the reason for treatment.

Because cisapride is usually compounded, the label concentration can vary. One liquid may be much stronger than another. That is why pet parents should never reuse an old syringe, guess at a dose, or copy a dose from another bird. Ask your vet or pharmacist to show you the exact volume in milliliters and the syringe size to use.

Cisapride is generally given by mouth. VCA notes that it is commonly compounded as a liquid, capsule, or tablet and typically begins working within 1 to 2 hours. If your conure vomits or regurgitates after dosing, seems more distressed, or the crop becomes more distended, contact your vet right away rather than giving another dose.

Mild digestive side effects can include looser droppings, diarrhea, GI discomfort, or regurgitation/vomiting-like signs. In birds, it can be hard to tell whether the medication or the underlying illness is causing the problem, so any worsening should be reported to your vet.

More serious adverse effects reported for cisapride in veterinary references include incoordination, drooling, muscle twitching, agitation, abnormal behavior, increased body temperature, and seizures, especially if the dose is too high. VCA also advises caution in patients with abnormal heart rhythms, and cisapride has a known history of QT-interval concerns in other species.

See your vet immediately if your conure becomes weak, collapses, has repeated regurgitation, develops neurologic signs, stops passing droppings, or seems painful when the crop or abdomen is touched. Those signs may point to overdose, a dangerous drug interaction, or a condition where motility drugs are not appropriate.

Cisapride can interact with other medications in two main ways. First, some drugs slow gut movement, which can work against cisapride. Second, some drugs can raise cisapride levels or increase rhythm-related risk, which may make side effects more likely.

Veterinary references advise caution with anticholinergic drugs, opioids, benzodiazepines, cyclosporine, furosemide, ondansetron, and oral drugs with a narrow therapeutic index. VCA also lists important caution with macrolide antibiotics except azithromycin, clarithromycin, antifungals, chloramphenicol, cimetidine, fluvoxamine, fluoroquinolones, amiodarone, procainamide, quinidine, sotalol, and tricyclic antidepressants.

That list matters in birds because conures with GI disease are often taking more than one medication at the same time. Tell your vet about every prescription, supplement, probiotic, hand-feeding formula additive, and over-the-counter product your bird receives. Do not start or stop another medication without checking first.