how long does it take for petroleum jelly to kick in for cat contipation?

my vet told me to give petroleum jelly (Vaseline) to my cat for her constipation. I was wondering if anyone knows how long it normally takes for it to start working?

One Response to “how long does it take for petroleum jelly to kick in for cat contipation?”

  1. Bob N Says:

    If it is going to make a difference, I would expect it to take at least 4 hours.

    We had a cat, Simon, who developed chronic constipation and nothing we tried worked – and that includes everything the vet recommended.

    We tried Vaseline (petroleum jelly), Catalax, Laxatone, and other similar products, Lactulose (an indigestible sugar that is supposed to help with constipation by adding water to the fecal matter) and a lot of other things.

    In the end (pun intended), the only thing that worked was an enema. The vet showed me how to do it and if we saw Simon straining in the litter box without passing anything, I’d call my wife, she would hold him, and I’d give him an enema using a pediatric size Fleet Enema bottle with warm water and sometimes some KY lubricant. The vet was very clear on not using the actual Fleet enema fluid – we were only to use water with perhaps some KY or Vaseline.

    I asked the vet how often it was safe to give Simon and enema before his system stopped trying on its own, and she said "I don’t think we need worry about. Simon’s rectum is pretty much toast" (meaning it was pretty non functional).

    We gave Simon an enema perhaps every two or two and a half weeks – he was around 14 1/2 years old when this all started. We got very good at it and could get it done in just a minute or so.

    Simon’s problem was often, but not always, that ahard "plug" of fecal matter formed at his anus and he could not pass it. I was often able to work the "plug" out with one of my fingers and then we could skip the enema.

    I’m not saying your cat’s constipation is as bad as Simon’s was, but I wanted you to know that sometimes the only thing that will help is an enema.

    The cat may not need enemas repeatedly, but sometimes one is needed to resolve one time, or occasional, constipation.