If your vet just prescribed cisapride for your cat, you may have hit a frustrating wall: your regular pharmacy has never heard of it, the big-box pet pharmacy doesn't carry it, and you're not sure where to turn.
You're not doing anything wrong. Cisapride is simply not available as a commercial medication anymore — and understanding why, and what to do about it, is the first step to getting your cat the help they need.
What Is Cisapride?
Cisapride is a prokinetic agent — a medication that stimulates the smooth muscle contractions in the gastrointestinal tract. In plain terms: it makes the gut move. For cats with GI motility disorders — especially megacolon and chronic constipation — the colon has lost its ability to push waste through effectively. Cisapride helps restore that function.
It was originally developed for humans in the 1990s and widely used. In 2000, it was withdrawn from the human market due to cardiac side effects at high doses. But for cats, at veterinary doses, it remains one of the most effective and widely prescribed treatments for GI motility disorders.
Why Can't I Get It at a Regular Pharmacy?
Because it was pulled from commercial production, cisapride is no longer manufactured as a standard pill or suspension you can pick up anywhere. The only way to legally obtain it today is through a licensed compounding pharmacy — one that is registered and equipped to prepare custom medications from raw pharmaceutical ingredients.
This is not a workaround or a grey area. Compounded medications prescribed by a licensed veterinarian are completely legal and medically appropriate. For many conditions in veterinary medicine — cisapride being one of the most common — compounding is the only option.
What Does Compounded Cisapride Look Like?
When a compounding pharmacy prepares cisapride for your cat, they have flexibility that commercial manufacturers don't. Common formulations include capsules (the most common, easy to hide in a treat), oral suspensions for cats who refuse capsules, and flavored options — chicken, fish, or beef — to reduce the battle at medication time.
Your vet determines the dose based on your cat's weight and severity of symptoms. The pharmacy then prepares it to those exact specifications — not a one-size-fits-all product, but medication made specifically for your cat.
The Refill Problem — And How to Solve It
Here's where most cat owners get stuck. Cisapride is a chronic medication. For most cats with megacolon, it's a lifelong daily medication — refills every 30 days, for years.
If you're relying on a traditional vet clinic to coordinate with a compounding pharmacy, you've probably already experienced what that looks like: phone tag, wait times, delays, and occasional gaps in treatment.
PetScript Direct was built to eliminate this problem. With a valid prescription on file, you can reorder your cat's compounded cisapride in under two minutes — from your phone, any time. No hold music. No callbacks. Just fast, fresh compounding shipped to your door.
👉 Order Compounded Cisapride at petscriptdirect.com