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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Cat
Satisfied Customers: 34325
Experience:  University of California at Davis graduate veterinarian with 45 years of experience.
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Our Burmese male cat (aged 7) has got quite regular

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Our Burmese male cat (aged 7) has got quite regular constipation (Irregular hard stools outside his tray). Otherwise he is in good health. We have tried "Kittyease", High fibre Royal Canin food and now for 4 days adding ALoe Vera to his food. Can you help please with other suggestions ?

You're speaking with Dr. Michael Salkin. Welcome to JustAnswer. I'm currently typing up my reply. Please be patient. This may take a few minutes.

I'm sorry that your question wasn't answered in a timely manner. It's best to have a thorough physical exam including X-rays of Charlie's gastrointestinal tract prior to initiating therapy for constipation. Underlying disorders responsible for the constipation need to be identified and treated specifically. Here are approaches to constipation that we consider:

Medical therapy includes either over the counter or prescription stool softeners and/or laxatives. Over the counter products include:

docusate sodium/dioctyl sulfosuccinate (Colace, e.g.) dosed at 50 mg/cat every 12-24 hours

mineral oil flavored with vegetable oil at 10-25 mL/cat per day

Prescription products include:

lactulose dosed at 0.1-1.25 mg/lb every 8-12 hours - lactulose is the most effective stool softener and is given to effect daily to maintain a soft to semiformed stool (usual dose after titration is 1-4 mL/cat every 8-12 hours

cisapride 0.05-0.5 mg/lb every 8-12 hours or 2.5-5 mg/cat every 8-12 hours - cisapride is a prokinetic drug - it stimulates colonic motility

Bulk forming laxatives (cellulose, psyllium seed) won't be effective in cats prone to dehydration or in cats with poor colonic muscle function because their mechanism is similar to high fiber diets (see below). The can be helpful for simple constipation, however. Psyllium seed (Metamucil) can be added at 1-4 tsp/canned food meal.

Stimulant laxatives (e.g., bisacodyl, castor oil, cascara) shouldn't be used for relieving constipation but are best used as a preventative in cats that still have normal colonic function.

Prokinetic therapy may assist smooth muscle function in cats with recurrent constipation or obstipation. The most effective drugs are the prescription serotonergic agonists such as cisapride and over the counter histamine H2 receptor antagonists such as ranitidine (Zantac) dosed at 0.5-1 mg/lb every 8-12 hours.

A high fiber or low-residue diet may be of value. High fiber diets induce colonic contraction when my patient still has a functional colon and is well hydrated. I need to avoid high fiber diets in patients that are prone to dehydration (can exacerbate it). Low residue diets are often best in patients with chronic recurrent episodes of obstipation or true megacolon because they reduce the amount of material reaching the colon and make it easier to keep a soft stool. The best of these diets are available through your vet.

Please respond with further questions or concerns if you wish.

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