How does NSI® Butterbur Extract work?
Butterbur Extract, with its active ingredients petasin and isopetasin, is thought to be a diuretic that helps promote urine flow. Butterbur may be helpful for urinary problems and to help remove gravel (small kidney stones) from the body.
Butterbur roots are believed to help control irritating coughs and to have expectorant properties that facilitate the loosening of phlegm.
Butterbur has a soothing effect on smooth muscle, believed to help control the cough reflex and soothe throat inflammation.
Butterbur is thought to inhibit the production of histamine, which helps keep air passages open.

NSI® Butterbur Extract is better because it:
- Is guaranteed to contain the most effective ingredients
- May help support bladder function, as well as lung and respiratory health
- Provides a better value than other products

Pregnant or lactating women, diabetics, hypoglycemics, and people with known medical conditions and/or taking drugs, should consult with a licensed physician and/or pharmacist prior to taking dietary supplements.