Frequently Asked Questions

Find all the answers to your frequently asked questions about Florastor® here.
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Health Canada and the World Health Organization define probiotics as “live microorganisms which, when administered in adequate amounts, confer a health benefit to the host.”8 These microorganisms include both bacteria and yeast-based cells, which interact with the body differently based on the specific strain of probiotic.

Florastor is unique because it is the only probiotic that features the specific strain, Saccharomyces boulardii lyo CNCM I-745, a friendly yeast found naturally on the skin of lychees and mangosteens (tropical fruits). Most of the other probiotics you’ll find on the market are bacterial probiotics that are either in capsule form or in foods such as yogurt. Florastor helps to prevent or reduce the risk of diarrhea from antibiotics, reduce symptoms of acute infectious diarrhea, and to promote a favorable gut flora for intestinal health.1,2,3,4,5,6

Florastor is a probiotic supplement intended to help prevent or reduce the risk of diarrhea from antibiotics, reduce symptoms of acute infectious diarrhea, and to promote the body’s own natural gut flora.1,4,5,6 Anyone’s gut flora can become upset and vulnerable—whether from the daily flow of an active lifestyle (travel, stress, diet), disruption from a prescribed antibiotic, a virus/infection, or nonspecific digestive issues. Florastor helps maintain peace in your intestinal tract to support intestinal health and harmony.1,2

Take Florastor daily* for up to one week as recommended below:
If symptoms of diarrhea worsen or persist beyond three days, consult a healthcare practitioner.

Antibiotic-Associated Diarrhea
Adults: Take 2 capsules daily* (2 capsules can be taken 1-3 times a day, up to a maximum of 6 capsules per day) to help prevent antibiotic-associated diarrhea.4
Children: Take 1 sachet twice a day to help reduce the risk of antibiotic-associated diarrhea.5

Acute Infectious Diarrhea
Adults: Take 2 capsules daily* (2 capsules can be taken 1-3 times a day, up to a maximum of 6 capsules per day) to help reduce symptoms related to acute infectious diarrhea.6
Children: Take 2 capsules twice a day to help treat acute infectious diarrhea.6

There are several ways to take Florastor:

  • Swallow the capsule whole.
  • Open the capsule or packet and sprinkle over semisolid food (applesauce, yogurt, etc.).
  • Open the capsule or packet and dissolve the contents in liquid (water, juice, milk, formula, etc.).

Yes, FlorastorKids® is appropriate for children one year or older. FlorastorKids is available as a tutti-frutti-flavored powder sachet to be mixed with a liquid or semisolid food.

The only difference is the tutti-frutti flavor in FlorastorKids. One Florastor capsule and one FlorastorKids powder sachet contain the same amount of Saccharomyces boulardii lyo (250mg).

Florastor is gluten-free and supplied in vegetarian capsules or powder sachets. Florastor, FlorastorKids, and FlorastorMax can be found on the shelf near other digestive health products or behind the pharmacy counter in 20, 30, and 50 count packages.

No, Florastor does not require refrigeration, making it travel-friendly. It is manufactured with a patented lyophilization process, similar to freeze-drying. This allows for storage at room temperature to guarantee an optimal level of living cells. Do not refrigerate Florastor after opening as this could expose the cells to moisture and compromise its three-year shelf life.

Within approximately 30 minutes after ingestion, each Florastor capsule dissolves in the stomach, allowing the yeast cells to help keep your intestinal tract on track. Florastor can only benefit you during days of use. Florastor is naturally eliminated through the digestive tract and is undetectable within five days after last consumption.7

Yes, because Florastor is a yeast-based probiotic, it is not compromised by antibiotics. Antibiotics can kill bad and good bacteria, including many bacterial probiotics you’ll find in capsule form or in foods such as yogurt. When necessary, use Florastor in conjunction with any standard antibiotic course.

Known adverse reactions: Adverse events occurring in less than 1% of cases include flatulence, constipation, and thirst. Very rare cases of fungemia have been observed in patients with central venous catheters. In some cases (rarely), flatulence, pruritus, rash, angioedema may occur. In some cases (very rarely), anaphylactic reaction may occur.

Cautions and warnings: The concurrent administration of Saccharomyces boulardii lye and intestinally acting antimycotics may decrease the efficacy of Saccharomyces lyo. Discontinue use and consult a health care practitioner if symptoms of digestive upset (e.g. diarrhea) occur, worsen or persist beyond 3 days. Do not open the capsules in the surrounding of patients having a central venous catheter. Lactose intolerance. Consult a health care practitioner prior to use this drug if you have an abnormal condition of the gastrointestinal tract lining (i.e. ulcer or other GI tract disorders). Treatment does not replace rehydration when this is necessary. May contain traces of soy.

Contraindications: Do not use if you have hypersensitivity to any component of the product (especially allergy to yeast) or if you have a central venous catheter. Do not use if you have an immune compromised condition (e.g. AIDS, lymphoma, long-term corticosteroid treatment). Do not use if you are experiencing nausea, fever, vomiting, bloody diarrhea or severe abdominal pain.

No, Florastor does not cause or exacerbate a vaginal yeast infection of Candida origin. Taken by mouth, Florastor transits through the gastrointestinal tract and does not pass through the urinary or genital system.

In the absence of reliable animal teratogenesis data, Biocodex advises women who are pregnant or nursing to check with their healthcare practitioner before using Florastor.

Recommended duration of use for antibiotic-associated diarrhea and acute infectious diarrhea is up to one week. If symptoms of diarrhea persist for longer than three days, consult your healthcare practitioner. However, long-term use of Florastor has not been associated with complications. After repeated oral doses, Florastor transits through the digestive tract attaining steady-state levels that are maintained throughout the administration period.3 Florastor is no longer present in stools two to five days after discontinuation of treatment.7