Tribulus cistoides Extract

ID: tribulus_cistoides_extract

Aliases: Tribulus cistoides

Type: botanical_extract

Route/form: oral supplement/extract unless otherwise specified

Status: supplement_or_research

Evidence level: preclinical

Best data tier: direct preclinical; adjacent human controlled/review

Support scope: human, non-human/mechanistic

Source types: mechanistic, meta_analysis, preclinical

Linked sources: 3

Broad outcomes: Hormones / fertility / sexual health

Reading note: These are curation notes anchored to linked sources, not a clinical recommendation or protocol.

Targets / mechanism

• nitric oxide
• gonadotropins
• testicular oxidative balance
• sexual behavior model

Optimization domains

• libido
• erectile quality
• hormone optimization
• botanical

Research basis

• A 2025 rat study reports restored sexual-function, hormone, nitric-oxide, gonadotropin, and oxidative-stress markers in nicotine-induced sexual dysfunction.
• Separates this species-specific Tribulus claim from generic Tribulus terrestris claims.

Limits, risks, and missing evidence

• Nicotine-injury rat reversal is not proof of human libido, testosterone, or erectile benefit.
• Species identity and extract chemistry must be separated from broader Tribulus supplement claims.

Risk flags

• preclinical only
• species specific
• limited human data
• botanical identity

Linked papers, labels, and reviews

1. Tribulus cistoides improves nicotine-induced sexual dysfunction in male Wistar rats
   preclinical / pubmed_tribulus_cistoides_2025
   Nicotine-induced male sexual dysfunction, NO, gonadotropins, and hormone-level source.
2. New cardioactive steroid saponins and other glycosides from Mexican Tribulus cistoides
   mechanistic / pubmed_tribulus_cistoides_saponins_1996
   Species-specific chemistry source; supports that T. cistoides contains bioactive saponin/glycoside chemistry, not sexual-function efficacy.
3. Tribulus terrestris for management of patients with erectile dysfunction: a systematic review and meta-analysis of randomized trials
   meta_analysis / pubmed_tribulus_terrestris_ed_meta_2025
   Genus-adjacent human ED evidence for T. terrestris, not T. cistoides; useful only as broader Tribulus context and should not be over-applied.