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Racehorsemeds Pentosan quality suspicion

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    Racehorsemeds Pentosan quality suspicion

    Anyone with Racehorsemeds Pentosan ?

    Something is odd with their Pentosan.

    Pentosan is ALWAYS AMBER- It is the nature of the API and always been like that in other brands.
    Racehorse meds Pentosan (all variations of it) are 100% clear.

    What is it ? Any explanations
    Last edited by Silencer23; Apr. 3, 2020, 12:30 PM.
    Original Poster

    Here is Racehorsemeds (bottom pic) vs Randlab Australia one that matches all other major brands (top)
    Last edited by Silencer23; Apr. 3, 2020, 12:31 PM.


      My Pentosan is clear but I don't get it from there. I seriously doubt it is poison however or there would be thousands of dead horses
      McDowell Racing Stables

      Remarkable Leather Goods
      Triple Stitched Halters, Hand Made To Order in US


        Original Poster

        If a properly mixed Pentosan can be fully clear, then I will apologize.
        I talked to a chemist/pharmacist that makes those and he told me it's always amber if properly made.

        You have to balance the PH when preparing it with something else other than water, and if not done then it's not made properly.

        For comparison, Kinetic Vet brand Pentosan was orange/yellow like in the top pic (Arthropen). And it was the same pure pentosan.

        The human FDA version of it, is also amber (Pentosan SP54)


          Original Poster

          Here is the Kinetic Vet (costs maybe x5 racehorse meds, which lead me to try racehorsemeds in the first place... but......)


            Originally posted by Silencer23 View Post
            If a properly mixed Pentosan can be fully clear, then I will apologize.
            I talked to a chemist/pharmacist that makes those and he told me it's always amber if properly made.
            I am no chemist/pharmacist but I'm not sure I'd be making a claim like this based solely on a visual inspection without getting the suspect drug actually tested.

            Oh, I have slipped the surly bonds of earth, And danced the skies on laughter-silvered wings; John Gilliespie Magee, Jr


              Original Poster

              Originally posted by Where'sMyWhite View Post

              I am no chemist/pharmacist but I'm not sure I'd be making a claim like this based solely on a visual inspection without getting the suspect drug actually tested.

              I agree, no problem.

              Edited original post to embrace my newly acquired self-doubt.....

              You have to agree with me that the changes in color do spark suspicion though ?
              Testing it would be 200$, so I'm not sure i'm up for the task but maybe if someone works with a compounder and can ask for his opinion that would be sweet.


                I have been using Pentosan for a better part of a decade. I get mine compounded from Wedgewood. It comes in an amber bottle so I assume it may be somewhat light sensitive.
                McDowell Racing Stables

                Remarkable Leather Goods
                Triple Stitched Halters, Hand Made To Order in US


                  Original Poster

                  So that is one vote against my theory Laurie , Wedgewood are supposed to be good indeed !

                  Still doesn't explain why big-pharma type brands produce Amber Pentosan, but I'll try to talk to some pharmacists and understand why the difference.


                    My pentosan from my vet, compounded by a pharmacy he trusts, is clear.


                      We also get compounded pentosan from a big name company via our vet and it is clear.
                      There is no joy equal to that found on the back of a horse.


                        Original Poster

                        Am I right to say that Wedgewood makes all of your Pentosans ?
                        They are indeed good, all I am saying is, it's worth to phone them and ask why pharma brands(factory pentosan) produce orange Pentosan. Maybe there's a good answer, and maybe we are on to something

                        Always good to ask.

                        It's like Vitamin B12 injection.... They are red.
                        If I got clear B12 I'd be asking questions, it's just my nature.


                          Is it Peggy who is the chemist?

                          There may be multiple ways to synthesize this product, that could lead to different color solutions. That would be an easy explanation here.


                            It could also be that they make it amber to protect it from light where Wedgewood and the like protects it from light with the amber bottle. Glad to see you have back off your ridiculous poison theory however OP.
                            McDowell Racing Stables

                            Remarkable Leather Goods
                            Triple Stitched Halters, Hand Made To Order in US


                              Original Poster

                              Yep, didn't want any big claims preventing me from a scientific answer... we will wait and see


                                I'll give a vote against Wedgewoods compounding. Different drug though.

                                Ordered liquid prednisolone from them for my late mare, 300mg/ml. Round after round of the stuff and nothing would change in her condition. Remembered when I first needed prednisolone for her, about a year prior) the fastest way to get it was Valley Vet in pill form, and remembered at that time the results were obvious and clear. Ordered more pills from VV. Results were apparent within a week.

                                I also have some super strange textured robaxin. Stuff feels like powdered sugar. Is the scooper with it fluffed or compacted? They couldn't answer, and you can't handle the stuff without a dust mask.

                                so, while the plural of anecdote is not data, I'll be extremely hesitant to buy from them again.


                                  Original Poster

                                  Even racehorsemeds themselves know what Pentosan should look like on their website catalog: Pentosan Gold 6ml - Universal Vet Suppliers For Horse and Camel Racing

                                  Then you get it and it's clear...

                                  Click image for larger version  Name:	DSC_0002.JPG Views:	2 Size:	10.4 KB ID:	10615872

                                  More examples of factory grade Amber pentosan:

                                  Cartrophen Vet - Healthy joints, happy pets

                                  Are all these companies mixing their Pentosan wrong Laurie ?

                                  We shall wait for clarifications ...
                                  Last edited by Silencer23; Apr. 3, 2020, 06:40 PM.


                                    Originally posted by Simkie View Post
                                    Is it Peggy who is the chemist?

                                    There may be multiple ways to synthesize this product, that could lead to different color solutions. That would be an easy explanation here.
                                    A given pure compound should be the same compound no matter how it’s made and therefore look the same. Might be differences in how it’s dissolved.
                                    The Evil Chem Prof


                                      Original Poster

                                      Well, Pentosan is water soluble so I am assuming they put it in Bacteriostatic NaCl/Water and then adjust PH with sodium hydroxide/hydrochloric acid ?

                                      Nacl,water, Sodium hydroxide and HCA are all clear solutions, and so the Pentosan should give its Amber color.

                                      Lets not forget that Wedgewood is not a manufacturer, they buy API's from someone else and that someone else can make mistakes.

                                      Probably worth it to phone WW if I were you, I think it's a damn fine question to ask.
                                      I'd phone Racehorsemeds but the FBI shut them down. The site isn't even up.
                                      More support for my theory....


                                      Check your medications people.... If in doubt, call. Got a good answer ? Fine.
                                      Got evaded ? Post here.
                                      Last edited by Silencer23; Apr. 3, 2020, 06:44 PM.


                                        The MSDS for pentosan polysulfate sodium states that it's a white to off white solid.

                                        Perhaps it's a preservative that sometimes give the solution an amber color.

                                        This might be libel to say some products are adulterated or unpure, solely based on the color? If you truly believe that's the case, you should probably test it.

                                        Although not sure what that'll accomplish since racehorsemeds is already operating outside fda approval.