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Senior Flex

Med-Vet Pharmaceuticals (MVP) — Item #11817
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Targeted support for senior joint health

  • 5,000 mg of glucosamine, 500 mg of chondroitin sulfate, 3,000 mg of MSM, & yucca for healthy joints
  • Includes vitamin A & vitamin E for antioxidant support, plus probiotics for healthy digestion
Senior Flex is a unique combination of joint, digestive, and antioxidant support for the senior horse. Provides 5,000 mg of glucosamine, 500 mg of chondroitin sulfate, 3,000 mg of MSM, 5,500 mg of yucca, 1,200 mg of Ester-C, 15,000 IUs of vitamin A, 1,000s IU of vitamin E, and probiotics to aid in weight gain, body condition, and digestive function. Senior Flex is apple-flavored with a rice bran base for added palatability.

Also consider Senior Flex H/A Pellets!

View our Joint Supplement Comparison Chart


Active Ingredients per 1 oz:
(Maintenance Dose = 1 scoop (1 ounce) daily)
  • Yuca Schidigera Extract
    5,500 mg
  • Glucosamine Sulfate (Shellfish)
    5,000 mg
  • Methylsulfonylmethane (MSM)
    3,000 mg
  • Ester-C®
    1,200 mg
  • Chondroitin Sulfate (Bovine)
    500 mg
  • Vitamin A
    15,000 IU
  • Vitamin D3
    5,000 IU
  • dl-Alpha Tocopheryl (Vitamin E)
    1,000 IU
  • Probiotic Blend (B. subtilis, B. licheniformis)
    250 million CFUs
Inactive Ingredients:: Active dry yeast (saccharomyces cerevisiae), heat stabilized rice bran, natural and artificial flavors and soybean oil.


Instructions for Use:
Directions for Use: (1 oz measure enclosed) Adult Horses (900-1,100 lbs): Provide 1 ounce twice daily during high level stress and/or working conditions. For lower maintenance level, provide 1/2 measure twice daily. This level may be doubled for the first 14-21 days.

SmartPak has obtained permission from the manufacturer to administer the loading dose for 28 days for our customers who wish to add this supplement to their SmartPaks.

Clinical Research

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    The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

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    Senior Flex is rated 4.6 out of 5 by 137.
    Rated 2 out of 5 by from Senior horse would not eat this product. Senior horse would not eat this product. Smart Pak kindly replaced it with the house brand in pellets.
    Date published: 2017-08-10
    Rated 4 out of 5 by from Loved the taste! I had to separate feed time because my younger horses wanted to eat this all up.
    Date published: 2017-08-01
    Rated 5 out of 5 by from Senior Flex for Maintenance I started Cheyenne on Senior Flex about 6 months ago to help prevent any joint pain or injuries. It seems to be helping my horse who will be 11 years this year. I will continue to use it as long as I am seeing improvement!
    Date published: 2016-12-20
    Rated 5 out of 5 by from Chancy Tru loves senior flex. My 20 year old Mare. Chancy has hip problems and was really stoved up. With Senior flex she feels much better and can actually kick up her heels some..
    Date published: 2016-09-08
    Rated 4 out of 5 by from Has everything she needs! My 24(?) year old mare needed something more than the Butlers pellets she was on to manage her mild arthritis. This supplement has good amounts of everything i was looking for (MSM, glucosamine, etc) with the added bonus of antioxidents for her immune system and probiotics. Don't have to supplement in probiotics for her anymore which is great because she will only eat so much extra "stuff" with her grain. She's picky and eats this well
    Date published: 2016-05-22
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