A research review of human and relevant scientific studies on Echium amoenum.
Last reviewed: August 2026
🔬 Research Summary
- Mood & depression: Small randomized clinical trials have investigated aqueous extracts in mild-to-moderate depression and reported promising results.
- Anxiety: Clinical research has investigated psychological outcomes, sometimes alongside depression-related measures.
- Obsessive-compulsive symptoms: A randomized trial has examined an aqueous extract in people with obsessive-compulsive disorder.
- Antioxidant and anti-inflammatory activity: Laboratory and animal research is extensive relative to the human clinical literature.
- Tea-specific evidence: The traditional dried flowers are used as an infusion, but controlled clinical evidence for the ordinary tea preparation is limited.
The sections below summarize the principal health areas investigated in the literature. Evidence strength is not uniform, and studies using extracts, oils, capsules or combination products are identified conceptually rather than treated as interchangeable with tea.
Mood & depression
What researchers found
Small randomized clinical trials have investigated aqueous extracts in mild-to-moderate depression and reported promising results.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Anxiety
What researchers found
Clinical research has investigated psychological outcomes, sometimes alongside depression-related measures.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Obsessive-compulsive symptoms
What researchers found
A randomized trial has examined an aqueous extract in people with obsessive-compulsive disorder.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Antioxidant and anti-inflammatory activity
What researchers found
Laboratory and animal research is extensive relative to the human clinical literature.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Tea-specific evidence
What researchers found
The traditional dried flowers are used as an infusion, but controlled clinical evidence for the ordinary tea preparation is limited.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Overall Assessment
Persian echium has a distinctive Iranian clinical literature, particularly in mood-related conditions, but the trials are small and use defined aqueous extracts. Evidence for ordinary tea remains limited and botanical identification/safety deserve particular attention.
References
- Sayyah M, Sayyah M, Kamalinejad M. A preliminary randomized double blind clinical trial on the efficacy of aqueous extract of Echium amoenum in the treatment of mild to moderate major depression. Prog Neuropsychopharmacol Biol Psychiatry. 2006;30(1):166-169. PMID: 16309809. doi:10.1016/j.pnpbp.2005.10.005.
- Sayyah M, Boostani H, Pakseresht S, Malaieri A. Efficacy of aqueous extract of Echium amoenum in treatment of obsessive-compulsive disorder. Prog Neuropsychopharmacol Biol Psychiatry. 2009. PMID: 19737592. doi:10.1016/j.pnpbp.2009.08.021.
Reference note: References were selected to represent the principal human clinical and systematic-review evidence discussed in this article. Where direct tea-infusion evidence is limited, the article explicitly identifies that limitation.
Publication version: August 2026
Try our Calm Nerves, featuring Persian Echium alongside valerian root, lavender and lemon verbena.
These statements have not been evaluated by Medsafe. This tea is not intended to diagnose, treat, cure, or prevent any disease. If you are pregnant, breastfeeding, or managing a health condition, check with your healthcare provider before making it a regular habit.
