Florajen is a probiotic supplement used to support digestive health, restore beneficial gut bacteria, and prevent diarrhea, particularly during antibiotic treatment. It comes in several formulas targeting different needs: general digestion, women’s health, and children’s health.
How Florajen Supports Digestion
Florajen Digestion, the flagship product, contains 15 billion live cultures from five bacterial strains, including multiple types of Lactobacillus acidophilus and Bifidobacterium. These are bacteria that naturally live in a healthy gut. The supplement is designed to replenish them when they’ve been depleted by illness, medication, or dietary changes.
Probiotics like Florajen work by restoring the balance of microorganisms in your intestines. When that balance tips in favor of harmful bacteria, you can experience bloating, irregular bowel movements, and general digestive discomfort. Florajen has been used to address irritable bowel syndrome, lactose intolerance, and general digestive irregularity.
Preventing Diarrhea During Antibiotics
One of the most common reasons people take Florajen is to reduce the gut disruption that comes with antibiotics. Antibiotics kill harmful bacteria, but they also wipe out the beneficial ones lining your intestines, which frequently leads to diarrhea.
A pilot study in hospitalized military veterans tested Florajen against a placebo during antibiotic treatment. Diarrhea occurred in 37% of the placebo group compared to 17% of the Florajen group. The study was too small to be definitive, but Florajen was well tolerated even in elderly patients taking multiple other medications, with no side effects serious enough to require stopping the supplement. If you’re taking Florajen alongside antibiotics, spacing it a couple of hours away from your antibiotic dose is generally recommended to keep the antibiotic from immediately killing the probiotic bacteria.
Beyond antibiotic-related diarrhea, Florajen has also been used to help prevent traveler’s diarrhea and diarrhea related to chemotherapy or hospitalization.
The Different Florajen Formulas
Florajen isn’t a single product. The line includes formulas tailored to specific needs, each with a different combination of bacterial strains.
- Florajen Digestion: The general-purpose formula. Contains Lactobacillus acidophilus and several Bifidobacterium strains at 15 billion live cultures. Used for digestive support, irritable bowel syndrome, diarrhea prevention, and general gut health.
- Florajen Women: Adds Lactobacillus rhamnosus alongside Lactobacillus acidophilus. This combination targets vaginal pH balance. Lactobacillus species are dominant in a healthy vaginal microbiome, and supplementing them can help prevent yeast infections and maintain a slightly acidic vaginal environment that discourages harmful bacteria.
- Florajen Kids: Formulated for children, this version has been used to help with rotavirus-related diarrhea in children, colic in babies, and skin problems in children with milk allergies.
Uses in Children
Florajen is considered a likely effective aid for treating diarrhea caused by rotavirus in children, one of the better-supported uses of probiotics in pediatrics. It’s also been used for antibiotic-associated diarrhea in kids, colic in infants, and certain lung infections in children. For skin issues in children allergic to cow’s milk, probiotics like those in Florajen may help reduce symptoms by influencing the immune response in the gut.
Children’s dosing differs from adult dosing, so follow the package directions for the Kids formula specifically. Probiotic supplements should not be given to a child without guidance from a pediatrician, especially for infants or children with compromised immune systems.
Side Effects
For most people, the only noticeable side effect of Florajen is gas, especially during the first few days as your gut adjusts to the new bacteria. This typically resolves on its own.
Allergic reactions are rare but possible. Signs include hives, skin rash, swelling of the face or tongue, difficulty breathing, dizziness, or unusual tiredness. These require immediate medical attention. People with severely weakened immune systems should be cautious with any live probiotic, since the bacteria could theoretically cause infection in someone whose body can’t keep them in check.
How to Take Florajen
Florajen is taken as a daily capsule, following the dosage on the package. Unlike many supplements where more is assumed to be better, exceeding the recommended dose doesn’t offer additional benefit and can increase gas and bloating. If you’re using it during an antibiotic course, continue taking it for at least a few days after you finish your antibiotics to give your gut flora time to reestablish.
Florajen products are typically refrigerated to keep the bacteria alive and effective. Check the packaging for storage instructions, as leaving a refrigerated probiotic at room temperature for extended periods can significantly reduce the number of viable bacteria by the time you take it.