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My kitten is weak. Can Clavamox and lactulose cause this together?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Female | unspayed | 20 days old | 0.5 lbs

Is there any possibility of clavamox and lactulose having a negative effect on a kitten when used together? My 3 to 4 week old foster is on day 4 of clavamox for her URI and had seemed to be better the last couple days. I gave her .4 ml of lactulose today as it is day 3 no BM and something now does not seem right. She seems very weak and abnormally tired. Gave 12 cc of SQ fluids and 1 cc of sugar water orally in case she was dehydrated or had low blood sugar but neither helped???

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on April 26th, 2018

There should be no problems giving them concurrently as long as they were prescribed by your veterinarian. If anything, together they may cause some loose stool. Try stimulating her with a warm, wet washcloth. Gently circle her back end until she defecates. Do this after each feeding. She should be getting KMR and you can start her on a gruel made of KMR and canned kitten food. Consider a probiotic such as Bene-Bac or ProViable to promote a healthy gut. If she doesn't improve in the next 12-24 hours have her rechecked by your veterinarian.

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