✓Reviewed by Ann Pruitt, InfoHorse.com·Updated April 2026
OS-MO-FLO for Dogs and Cats digestive aid bottle by Horse Sense Solutions
OS-MO-FLO for Dogs and Cats by Horse Sense Solutions. OS-MO-FLO for dogs and cats help restore your pets to normal bowel movement, safely, naturally, effectively!
Who Are The People At Horse Sense Solutions?
Horse owners and pet owners! Every staff member at Horse Sense Solutions has been involved with dogs, cats and horses on a personal level for years, they just go together. The staff knows first-hand of that the Digestive Issues present a serious threat to the health of horses, dogs and cats — and they have formed a revolutionary product line which assists with the normal flow of digestion. Often, horses may have digestion difficulties by simple acts of severe weather change, change in their routine or an abrupt change in feed source--many times dogs and cats will experience the same.
Our products provide a common sense approach to keeping the digestive tract flow moving appropriately. These products need to be readily available on your shelf. Very simple to use. Available in paste form and also in liquid form with oral dosing syringe.
Our “Horse Sense” Is… Well… Common Sense— Even For Dogs and Cats Too!
If you see signs of digestive flow not appropriately taking place, it may be as simple as your dog refusing to eat. Horse Sense Solutions has different products for different needs. It's what you do first. Our product is unique to any product on the market, by the “response" in maintaining the normal flow. Keep products readily available on your shelf. Our products DO NOT contain probiotics. We also make a special formulation for horses— along with our Dog and Cat formula.
Is Your Dog Experiencing Hard or Too Loose Stools? So What Can You Do To Help?
We’ve all seen it… dogs and cats straining to go— or, miserable with watery stools. It is a terrible sight and one that leaves owners worried and your pets feeling miserable. If you see signs of digestive flow becoming slow and not appropriately taking place - it may be as simple as your dog refusing feed. This is a common sense approach to keeping digestive tract moving appropriately. This unique formula promotes normal digestive “Flow" to assist with Normal Bowel Movements. This promotes the normal flow of digestion and elimination of retained stool. May be given to dogs and cats of any age, size or weight— even safe for pregnancy! Promotes Normal Bowel Movements. OS-MO-FLOfor Dog and Cats is packaged in ready-to-use, liquid form with oral dose syringes; multi dose bottle.
What Temperature Do I Need To Store OS-MO-FLO?
Best stored at Room Temperature 70 degrees. Although, high temperatures do not affect integrity of products. If accidentally freezes just thaw out and use will not affect the products. Temperature does not affect product. May keep in feed room or in trailer.
How Should OS-MO-FLO Be Administered?
All products designed for easy application. Just lift your horse's or pet's head upward; with the included open end syringe (like a wormer) squeeze in the mouth and watch them swallow. Has a sweet taste! That's all there is to it! All Feeding Directions are located on labels. Oral dosing syringe is included in canister with all of our Liquid Formulas.
What Do Dog and Cat Owners Have To Say?
My little Chihuahua had watery stools with a foul odor that just wasn't normal. Reba at Horse Sense Solutions sent me a bottle of OS-MO-FLO for dogs and cats. After just ONE dose- my little 2 year old Chihuahua had normal stools with no unusual odor. I was thrilled. Super easy to use-- even for fussy Chihuahuas! He has been back to normal now for 2 months. I am thrilled! ~ Ann Pruitt-- InfoHorse.com
Order OS-MO-FLO Today. It Could Make A Real Difference To Your Dog or Cat's Life Tomorrow… OS-MO-FLO has been called a “miracle” by customers who had constipated and watery stool pets- and then have seen normal digestive flow restored. Make sure to have it in your home available for the unexpected. At only $34.95 for multi doses. [Reba] It is the most affordable, and often the most effective thing that can be done for dogs and cats suffering with proper digestive flow. You’ll never regret having it. The 5 year shelf life makes it a truly worthwhile investment— Call and order today! Be sure to take with you on trips so that you can be prepared! OS-MO-FLO for Dogs and Cats digestive aid bottle by Horse Sense Solutions
What exactly is OS-MO-FLO for Dogs & Cats?
OS-MO-FLO is Horse Sense Solutions' pet-specific digestive aid, sold as a 4 fl. oz. / 120 ml bottle that ships with an oral dosing syringe for easy administration (SKU 3315W, $34.95). The company describes it as a "unique formula" that "promotes normal digestive 'Flow' to assist with Normal Bowel Movements" — a common-sense way to keep a dog or cat's digestive tract moving appropriately. It is the canine and feline counterpart to the company's flagship horse product, SayWhoa! to Horse Colic.
OS-MO-FLO for Dogs and Cats product by Horse Sense Solutions
Who are the people behind Horse Sense Solutions?
The company is run by horse owners and pet owners — every staff member has been personally involved with dogs, cats and horses for years, because, as they put it, "they just go together." Horse Sense Solutions positions itself as a maker that solves digestive problems rather than masking symptoms, and the brand has earned a public endorsement from the family of Monty Roberts, the original "Horse Whisperer." The company mails from PO Box 3848, Breckenridge, Colorado 80424, and can be reached at or.
OS-MO-FLO for Dogs and Cats product label with directions and dosing by Horse Sense Solutions
How is OS-MO-FLO made and tested?
All Horse Sense Solutions products are manufactured in the USA in an ISO 9001 & ISO 13485 registered facility that "operates in strict compliance with 21 CFR 820 and cGMP" (Current Good Manufacturing Practices). Under those standards "each batch is formulated to exact specifications, assuring quality & consistency." Notably, the company states plainly that "Our products DO NOT contain probiotics" — the formula works by maintaining the normal flow of digestion rather than reseeding gut flora.
Horse Sense Solutions digestive flow product bottle with oral dosing syringe
How do you give OS-MO-FLO to a dog or cat?
The directions are simple: shake the bottle, pour into a cup, draw back into the included syringe, then place the doser deep on the side of the mouth with the head tilted upward and squeeze it in. Dosing is by body weight — pets under 5 lbs get 5 ml per dose, and pets over 6 lbs get 1 ml per pound, not to exceed 30 ml per dose. The product has a sweet taste that makes dosing easier, the same as the company's horse line.
Which pets is OS-MO-FLO suitable for?
OS-MO-FLO is formulated for dogs and cats over 3 months of age, in any size or weight, and the company states it is safe for lactating or pregnant animals. It is intended for pets showing signs of digestive irregularity, including food refusal, to help restore normal bowel movement safely, naturally and effectively. Because it carries no probiotics and relies on a flow-supporting formula, it is built to be a reach-for-it-quickly item on the shelf.
Where can you buy it and how should you store it?
OS-MO-FLO is sold direct through horsesensesolutions.com for $34.95, and the company works with brick-and-mortar retailers through sales agents — customers can ask their local feed store to carry the line and receive a thank-you gift. Store the bottle at room temperature (around 70 degrees) for best results; high heat does not affect product integrity, so it can ride along in trailers or feed rooms, and if it accidentally freezes you simply thaw it and use it. Shelf life is a full 5 years.
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ⓘThe Solution Section (FAQ)
What is OS-MO-FLO for Dogs and Cats?
Per Horse Sense Solutions: OS-MO-FLO for Dogs and Cats is a digestive product designed to help restore your pets to normal bowel movement — described by the company as safe, natural, and effective. Per the company: it promotes the normal flow of digestion and elimination of retained stool, and is packaged in ready-to-use liquid form with oral dose syringes in a multi-dose bottle.
Who are the people at Horse Sense Solutions?
Per Horse Sense Solutions: horse owners and pet owners. Per the company: "Every staff member at Horse Sense Solutions has been involved with dogs, cats and horses on a personal level for years — they just go together."
Per the company: the staff knows first-hand that digestive issues present a serious threat to the health of horses, dogs, and cats. They formed a product line which assists with the normal flow of digestion. Available in paste form and in liquid form with oral dosing syringe.
When should I consider OS-MO-FLO for my dog or cat?
Per Horse Sense Solutions: if you see signs of digestive flow not appropriately taking place, it may be as simple as your dog refusing to eat. Per the company, common warning signs:
Straining to go
Watery stools
Refusing feed
Slow digestive flow
Per Horse Sense Solutions: this is a common sense approach to keeping the digestive tract moving appropriately. The unique formula is described as promoting normal bowel movements, and per the company may be given to dogs and cats of any age, size, or weight — even safe for pregnancy.
How is OS-MO-FLO administered?
Per Horse Sense Solutions: all products are designed for easy application. Per the company: "Just lift your horse's or pet's head upward; with the included open end syringe (like a wormer) squeeze in the mouth and watch them swallow. Has a sweet taste!"
Per the company: all feeding directions are located on labels, and the oral dosing syringe is included in the canister with all liquid formulas. Per Horse Sense Solutions: this product does not contain probiotics.
What temperature is OS-MO-FLO stored at — and does it freeze?
Per Horse Sense Solutions: best stored at room temperature, 70 degrees. Per the company:
High temperatures do not affect product integrity
If accidentally frozen, just thaw out and use — will not affect the product
May be kept in feed room or in trailer
The product carries a 5 year shelf life
What do dog and cat owners say about OS-MO-FLO?
Per Horse Sense Solutions (customer testimonial from Ann Pruitt, InfoHorse.com): "My little Chihuahua had watery stools with a foul odor that just wasn't normal. Reba at Horse Sense Solutions sent me a bottle of OS-MO-FLO for dogs and cats. After just ONE dose — my little 2 year old Chihuahua had normal stools with no unusual odor. I was thrilled. Super easy to use — even for fussy Chihuahuas! He has been back to normal now for 2 months. I am thrilled!"
Per the company (Reba's quote): "It is the most affordable, and often the most effective thing that can be done for dogs and cats suffering with proper digestive flow. You'll never regret having it."
What pricing has Horse Sense Solutions quoted, and how do I order?
Per Horse Sense Solutions: $34.95 for multi doses (source-quoted pricing).
Per Horse Sense Solutions: Phone 1-800-448-8180 or 830-372-2211, email [email protected], website http://www.horsesensesolutions.com/. Address: P.O. Box 3848, Breckenridge, Colorado 80424. Pricing as quoted is subject to change due to economic factors.
How much does OS-MO-FLO cost and what size is it?
OS-MO-FLO for Dogs and Cats is priced at $34.95 (SKU 3315W) on horsesensesolutions.com. Each bottle holds 4 fl. oz. / 120 ml and comes with an oral syringe for easy dosing.
How do I give OS-MO-FLO to my dog or cat?
Shake the bottle, pour the dose into a cup, and draw it back into the included syringe. Place the doser deep on the side of your pet's mouth with the head tilted upward and squeeze it in. The product has a sweet taste, which makes dosing easier.
What is the correct dose of OS-MO-FLO by weight?
For dogs and cats under 5 lbs, the dose is 5 ml. For pets over 6 lbs, use 1 ml per pound of body weight, not to exceed 30 ml per dose. It is intended for pets over 3 months of age.
Is OS-MO-FLO safe for pregnant or nursing animals?
Yes. The company states OS-MO-FLO is suitable for pets over 3 months of age in any size or weight, and that it is safe for lactating or pregnant animals. As with any supplement, owners with a specific medical concern should consult their veterinarian.
Does OS-MO-FLO contain probiotics?
No. Horse Sense Solutions states plainly that 'Our products DO NOT contain probiotics.' Instead of reseeding gut flora, OS-MO-FLO works by helping maintain the normal flow of digestion, which the company says is what makes its response unique among products on the market.
What is the difference between OS-MO-FLO and SayWhoa!?
Both products promote digestive flow and normal bowel movements, but they are formulated differently. According to the company's FAQ, the two differ in form and ingredients — OS-MO-FLO is the formulation offered for dogs and cats, while SayWhoa! is the liquid product for horses dealing with colic.
Where is OS-MO-FLO manufactured?
All Horse Sense Solutions products are manufactured in the USA in an ISO 9001 and ISO 13485 registered facility. The facility operates in strict compliance with 21 CFR 820 and cGMP (Current Good Manufacturing Practices), with each batch formulated to exact specifications to assure quality and consistency.
How should I store OS-MO-FLO and how long does it last?
Store it at room temperature, around 70 degrees, for best results. High temperatures do not affect product integrity, so it can be kept in trailers or feed rooms, and if it accidentally freezes you simply thaw it and use it. The shelf life is 5 years.
When should I use OS-MO-FLO for my pet?
OS-MO-FLO is designed for dogs and cats showing signs of digestive irregularity, including food refusal or trouble with normal bowel movements. The company describes it as a common-sense approach to keeping the digestive tract moving appropriately, so it is meant to be kept on hand and reached for quickly when needed.
Is OS-MO-FLO related to Monty Roberts?
Horse Sense Solutions is publicly endorsed by the family of Monty Roberts, the original 'Horse Whisperer.' His daughter Laurel Roberts has provided a testimonial for the company's flagship product, reporting 100% success using SayWhoa! to save colicking mustangs. The brand's reputation in the horse world carries over to its pet line.
How do I buy OS-MO-FLO?
You can order OS-MO-FLO for Dogs and Cats directly from horsesensesolutions.com for $34.95. The company also distributes through brick-and-mortar retailers via sales agents, and customers can ask their local feed store to carry the products — Horse Sense Solutions offers a thank-you gift for the referral.
How do I contact Horse Sense Solutions?
Horse Sense Solutions can be reached by phone at 830-372-2211 or toll-free at 800-448-8180, and by email at [email protected]. Their mailing address is PO Box 3848, Breckenridge, Colorado 80424.
What makes OS-MO-FLO different from other pet digestive products?
The company says its formula is 'unique to any product on the market, by the response in maintaining the normal flow.' Rather than relying on probiotics, OS-MO-FLO is built around supporting the natural flow of digestion, made in a USA ISO-registered facility, and designed to be simple enough to keep on the shelf and use at the first sign of trouble.
Can OS-MO-FLO be used for both dogs and cats?
Yes. OS-MO-FLO is specifically formulated for both dogs and cats over 3 months of age, in any size or weight. The same bottle and syringe serve both species, with the dose adjusted to the animal's body weight as described in the directions.
Contact Who Are The People At Horse Sense Solutions?
