Herbal formulas
Herbs that work together
Many of the best-studied herbal products are combinations. Each page explains what is in the blend, what trials of the combination itself have found, and who should avoid it.
How to read the ratings
- Good clinical evidence
- Promising clinical evidence
- Early or mixed evidence
- Long traditional use
Ratings reflect trials of the combination for its main use, not the evidence for each ingredient on its own.
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Iberogast (STW 5)
Iberogast Classic, Iberogast Advance, Iberogast N, STW 5, STW 5-II
Indigestion and IBS
Promising clinical evidenceGerman herbal drops for indigestion and IBS. Classic has nine herbs including greater celandine; Advance has six and no celandine.
9 ingredients
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Sinupret (BNO 1016)
Sinupret extract, Sinupret eXtract, BNO 1016, Sinupret forte, Sinupret Saft, Sinupret Adult Strength, BNO 101, five-herb sinus formula
Acute viral sinusitis
Promising clinical evidenceA German five-herb sinus extract that eased acute viral sinusitis modestly faster than placebo in two manufacturer-funded trials.
5 ingredients
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Thyme and Ivy
Bronchipret, Bronchipret Saft TE, Bronchipret Tropfen, Bronchipret Thymian Efeu, BNO 1200 (drops), thyme–ivy syrup, thyme and ivy leaf fluid extract
Acute bronchitis with chesty cough
Promising clinical evidenceA fixed thyme and ivy leaf extract combination for chesty coughs, tested against placebo in one trial of 361 adults with bronchitis.
2 ingredients
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Peppermint and Caraway Oil
Menthacarin, Carmenthin, Enteroplant, Gaspan, Gastropan, peppermint oil and caraway oil capsules, PCC, POCO
Functional dyspepsia (indigestion)
Promising clinical evidenceEnteric-coated capsules of peppermint and caraway oil, studied mainly by their maker for functional dyspepsia (chronic indigestion).
2 ingredients
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Saw Palmetto and Nettle Root
PRO 160/120, WS 1541, Prostagutt duo, Prostagutt forte, Prostagut Forte, sabal and urtica extract, saw palmetto–nettle root combination
Urinary symptoms of enlarged prostate
Promising clinical evidenceA German capsule of saw palmetto fruit and nettle root extracts, tested by its maker for urinary symptoms of an enlarged prostate.
2 ingredients
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Valerian and Hops
Ze 91019, Redormin 500, ReDormin Forte, Alluna Schlaf, Zeller Schlaf forte, valerian-hops combination, Baldrian-Hopfen
Insomnia and sleep problems
Early or mixed evidenceA fixed valerian root and hop cone extract tablet for sleep, approved in the EU, with small and mixed trial results.
2 ingredients
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Myrtol (GeloMyrtol forte)
GeloMyrtol forte, Myrtol 120 mg, ELOM-080, Myrtol standardized, Gelomyrtol, eucalyptus, sweet orange, myrtle, and lemon oil distillate
Acute bronchitis and sinusitis
Promising clinical evidenceA German capsule of distilled eucalyptus, sweet orange, myrtle, and lemon oils, tested against placebo in acute bronchitis and sinusitis.
4 ingredients
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Kan Jang (Andrographis and Eleuthero)
Kan Jang tablets, Kan Jang First Defence, Nergecov, agaDA, SHA-10 and SHE-3 extracts, andrographis with Siberian ginseng
Common cold symptoms
Promising clinical evidenceAn andrographis and eleuthero blend that eased cold symptoms in manufacturer-linked trials; its andrographis can cause anaphylaxis.
2 ingredients
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Triphala
Triphala churna, Triphala curna, Triphala choornam, Phala trika, Itrifal Saghir, three fruits
Occasional constipation
Long traditional useAn Ayurvedic powder of three dried fruits, taken at night as a mild laxative. Its trials are small and product quality varies.
3 ingredients
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Turmeric and Black Pepper
Turmeric with black pepper, curcumin with piperine, curcumin–piperine, curcuminoids plus piperine, turmeric with BioPerine
Knee osteoarthritis pain
Early or mixed evidenceTurmeric extract with piperine from black pepper to boost curcumin absorption; joint evidence is thin and liver and drug risks are real.
2 ingredients
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Sativex (nabiximols)
Nabiximols, THC:CBD oromucosal spray, delta-9-tetrahydrocannabinol and cannabidiol spray
MS muscle spasticity
Promising clinical evidenceA prescription mouth spray of two cannabis extracts, about equal THC and CBD, licensed in the UK for MS spasticity after a 4-week trial.
2 ingredients
These pages are educational and are not medical advice. Looking for a single plant? Browse the herb library →