We found no verified incidence data for FemiCore side effects. Because amounts are not disclosed on the page we checked, safety cannot be assessed precisely. Speak with a clinician or pharmacist before use, especially if you are pregnant, nursing, have kidney, liver or eye conditions, or take prescription medicines.
Bearberry (Uva Ursi)
Bearberry contains arbutin, which the body converts to hydroquinone. NIH LiverTox: Uva Ursi (bearberry) discusses this, and NIH LactMed: Uva Ursi states uva ursi is generally considered contraindicated during breastfeeding because of limited data and potential toxicity. Reference sources also raise concern about long-term or high-dose use.
Berberine
Berberine is commonly flagged for possible interactions with medications, including blood-sugar-lowering drugs and some medicines processed by liver enzymes, and for caution in pregnancy. Ask a pharmacist to check your medication list.
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View Official Offer PageCranberry
NCCIH: Cranberry says cranberry taken by mouth is generally thought to be safe. People on blood thinners such as warfarin are often advised to ask a pharmacist about cranberry products.
Probiotics
Probiotics are generally well tolerated in healthy people, but they can cause gas or bloating, and people with weakened immune systems should seek medical advice first. See NCCIH: Probiotics.
Safety Evidence Ladder
| Level | Example |
|---|---|
| Finished-product safety data | Not located for FemiCore |
| Ingredient-level safety references | NIH/NCCIH pages cited here |
| Anecdotal reports | Cannot establish incidence |
Before Surgery or Procedures
Tell your surgical team about all supplements, as some ingredients can affect medications or recovery.
When to Seek Prompt Care
Stop use and contact a clinician for rash, swelling, trouble breathing, fever, blood in urine, severe pain or any unexpected reaction. New or worsening bladder symptoms can signal conditions that need evaluation.
Sources
- NIH LiverTox: Uva Ursi (bearberry)
- NIH LactMed: Uva Ursi
- NCCIH: Cranberry
- NCCIH: Probiotics
- NCCIH: Using Dietary Supplements Wisely
How we wrote this page. Independent editorial research, last updated October 3, 2026. Medical statements are tied to the NIH, NCCIH, Cochrane or other sources listed above. We earn commissions on some links, which is explained in our affiliate disclosure. This page is not medical advice; talk to a clinician about bladder symptoms. Spot an error? Tell us.
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