Botanical Blend
Iberogast (STW 5)
Also known as: STW 5, Nine-herb formula, German digestive formula
Nine-herb German formula with strong evidence for functional dyspepsia and IBS symptoms.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Functional dyspepsia
- IBS
- Bloating
- Motility support
How it works
- Multiple herbs work synergistically
- Prokinetic effects
- Antispasmodic
- Anti-inflammatory
Dosage
- Typical range
- 20 drops 3x daily
- Timing
- Before or with meals
- With food
- Before or with meals
- Duration
- As needed or ongoing
- Special populations
- Functional dyspepsia, IBS, motility issues
Forms
- Liquid drops
- As directed
Safety
Common side effects
- Rare: allergic reactions
- GI upset
Contraindications
- Allergy to components
- Liver disease
Evidence notes
Strong clinical evidence from multiple trials
Grade A: Multiple well-designed human trials support the main claims.
Related in Botanical Blend
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.