Overview
Nine-herb European tincture for functional dyspepsia and IBS.
- Whole dried plant material (root, leaf, flower, or aerial parts depending on the species)
- Standardized hydroethanolic or aqueous extract (capsule, tincture, or tea)
- Powdered traditional preparation used in Ayurvedic, TCM, or Western herbal practice
- Standardized extract capsule
- Liquid tincture (alcohol or glycerin)
- Powdered whole herb
- Traditional decoction or tea
Mechanism of action
Region-specific modulation of GI smooth muscle tone and visceral hypersensitivity.
- · Region-specific modulation of GI smooth muscle tone
- · visceral hypersensitivity
Effects on the body
Organ system effects
Evidence-based benefits
Improves dyspepsia and IBS symptoms
Strong evidencePotential side effects
- · Mild GI symptoms
- · Idiosyncratic hepatotoxicity
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Pregnant or breastfeeding (insufficient safety data)
- ·Children under 18 (unless directed by a clinician)
Supplement interactions
- A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
- Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Iberogast (STW-5) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Iberogast (STW-5) third party tested NSF
CapsulesPre-measured Iberogast (STW-5) capsules — easiest for travel and consistent daily dosing without scoops or scales.Iberogast (STW-5) capsules
PowderBulk unflavored Iberogast (STW-5) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Iberogast (STW-5) powder unflavored
Best sellersMost-purchased Iberogast (STW-5) products on Amazon — a quick way to see what's reviewed widely before you commit.Iberogast (STW-5) best sellerScientific evidence8Show studiesHide studies
STW-5 vs placebo in functional dyspepsia
Madisch A, et al.
8-week DB-RCT in 315 patients.
Significantly improved GI symptom score vs placebo.
PubMed: Iberogast (STW-5) — Improves dyspepsia and IBS symptoms
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