Calabar bean
Physostigma venenosum
Physostigma venenosum, also known as Calabar bean, originates from traditional medicine practices in West Africa. Traditionally, it has not been extensively documented for specific uses; however, its seeds have been used in local rituals and later studied scientifically. Physostigmine, derived from this plant, shows potential in improving cognitive function and reducing α-synuclein expression in Parkinson's disease neural cell lines, though the evidence is still preliminary. Additionally, some extracts demonstrated potential analgesic activity in vitro. The plant has also led to the development of physostigmine as an ocular hypotensive agent. Early toxicological studies documented its use and effects, including local rituals and subsequent scientific investigation. No major safety issues or drug interactions have been recorded, but further research is needed to fully understand its applications and risks.
- Best evidence
- D
- Cautions
- —
Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.
What the science says
- Physostigmine, from Physostigma venenosum, shows potential in improving cognitive function and reducing α-synuclein expression in PD neural cell lines.
- Some Physostigma venenosum extracts showed potential analgesic activity in in vitro receptor binding assays.
- The Physostigma venenosum plant has led to the development of physostigmine, an ocular hypotensive agent.
- The study documented the early toxicology and effects of physostigmine from Physostigma venenosum seeds, including their use in local rituals and subsequent scientific investigation.
- Physostigmine, an alkaloid from Physostigma venenosum, shows potential as a cholinesterase inhibitor relevant to dementia treatment.
Frequently asked questions
What is Calabar bean?
Calabar bean (Physostigma venenosum) is a plant documented in FolkKB's traditional-medicine reference, drawn from sourced literature and cross-checked against the evidence.
What does the scientific evidence say about Calabar bean?
5 sourced findings are recorded for Calabar bean; the strongest carries evidence grade D. For example: Physostigmine, from Physostigma venenosum, shows potential in improving cognitive function and reducing α-synuclein expression in PD neural cell lines.
How strong is the evidence for Calabar bean?
The strongest finding for Calabar bean carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).
Is Calabar bean safe? What are the side effects?
No major safety issues are recorded for Calabar bean in our sources, but the data may be incomplete. Consult a qualified professional before use.
Does Calabar bean interact with medications?
No drug interactions are recorded for Calabar bean in our sources. This does not rule them out — check with a pharmacist.
What are the common names of Calabar bean?
Calabar bean is also known as: Физостигма ядовитая, Fève de Calabar.
Is Calabar bean a proven treatment?
No. FolkKB is informational only. Traditional use and early findings are not proof of efficacy or safety — consult a qualified professional and never self-treat.
Sources
- T2 Ethnomedicinally selected plants as sources of potential analgesic compounds: indication of in vitro biological activity in receptor binding assays. literature abstract metadata
- T2 The early toxicology of physostigmine: a tale of beans, great men and egos. literature abstract metadata
- T2 The role of phytochemicals in the treatment and prevention of dementia. literature abstract metadata
- T2 Nature as a source of drugs for ophthalmology. literature abstract metadata
- T2 A Review on Phytochemical Constituents used as Current Treatment Strategies for Neurodegenerative Disease. literature abstract metadata