The short answer
Grapefruit fruit extract needs product-specific review before use with daridorexant. Official guidance warns about grapefruit fruit and juice; an extract that retains interacting constituents may raise exposure, but its effect cannot be predicted from the name alone.
What this answer covers
Citrus paradisi fruit extract, distinct from grapefruit seed extract and from a measured serving of juice; interacting constituent content unverified.
- Supplement or preparation
- Citrus Paradisi (Grapefruit) Fruit Extract
- Medication ingredient
- daridorexant
What official guidance actually covers
European QUVIVIQ information says to avoid grapefruit or grapefruit juice in the evening. The warning supports concern about grapefruit constituents that inhibit CYP3A4, but does not establish the effect of every concentrated fruit extract.
Why higher exposure matters
Daridorexant depends substantially on CYP3A4 metabolism. Its label restricts inhibitors because greater exposure can increase adverse effects, including impairment. No fruit-extract-specific change in blood level or toxicity rate was established.
Extract identity changes the conclusion
A fruit extract may retain different amounts of interacting constituents depending on manufacture. Fruit extract is not seed extract, and neither a milligram amount nor an unverified product name establishes equivalence to grapefruit juice.
Use a product review rather than a guessed interval
Show the exact extract to the pharmacist or prescriber before using it. Follow the applicable grapefruit guidance, but do not assume a short spacing gap makes a concentrated extract acceptable. Any prescribed dose decision belongs with the clinician.
Evidence and practical considerations
Side effects & toxicity
Conditional only for fruit extracts retaining CYP3A4-inhibiting grapefruit constituents, extrapolated from exact-drug fruit/juice labeling. No direct extract PK or adverse-rate proof, no measured extract dose equivalence or validated protective gap; mechanism is reduced metabolism rather than proven increased intestinal uptake.
- Exact scope
- Citrus paradisi fruit extract, distinct from grapefruit seed extract and from a measured serving of juice; interacting constituent content unverified. with Daridorexant2591497 IN; oral QUVIVIQ hydrochloride tablets.
- Medication form and route
- oral medication; oral supplement
What remains uncertain
- Fruit/juice-to-extract extrapolation; composition unconfirmed. Does not apply to grapefruit seed extract or imply all extracts have equal effect.
Factors that may matter: Preparation; Dose; Other medicines; Organ function.
Read the supporting source summaries
Source 1: current product label
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid strong CYP3A4 inhibitors and moderate/strong inducers; moderate inhibitors limit dose25mg. CNS-depressant effects and next-day impairment, complex sleep behaviors.
How this applies: Exact daridorexant RxCUI 2591497 IN, with stated salt/formulation/route bridge.
No exact botanical extract PK trial or supplement-combination incidence; distinguish modeled strong-modifier effects from measured clinical data.
Source 2: current product label
ema.europa.eu · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid grapefruit or grapefruit juice in the evening. CYP3A4 inhibition raises exposure; efavirenz reduced AUC61% and Cmax35%.
How this applies: Exact oral daridorexant hydrochloride product; indirect preparation bridge for fruit extract.
Official fruit/juice guidance, not a standardized fruit-extract trial; extract furanocoumarin content and exact exposure unknown.
Research assessment: · Open full citations ↗
Absorption & effectiveness
Conditional only for fruit extracts retaining CYP3A4-inhibiting grapefruit constituents, extrapolated from exact-drug fruit/juice labeling. No direct extract PK or adverse-rate proof, no measured extract dose equivalence or validated protective gap; mechanism is reduced metabolism rather than proven increased intestinal uptake.
- Exact scope
- Citrus paradisi fruit extract, distinct from grapefruit seed extract and from a measured serving of juice; interacting constituent content unverified. with Daridorexant2591497 IN; oral QUVIVIQ hydrochloride tablets.
- Medication form and route
- oral medication; oral supplement
What remains uncertain
- Fruit/juice-to-extract extrapolation; composition unconfirmed. Does not apply to grapefruit seed extract or imply all extracts have equal effect.
Factors that may matter: Preparation; Dose; Other medicines; Organ function.
Read the supporting source summaries
Source 1: current product label
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid strong CYP3A4 inhibitors and moderate/strong inducers; moderate inhibitors limit dose25mg. CNS-depressant effects and next-day impairment, complex sleep behaviors.
How this applies: Exact daridorexant RxCUI 2591497 IN, with stated salt/formulation/route bridge.
No exact botanical extract PK trial or supplement-combination incidence; distinguish modeled strong-modifier effects from measured clinical data.
Source 2: current product label
ema.europa.eu · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid grapefruit or grapefruit juice in the evening. CYP3A4 inhibition raises exposure; efavirenz reduced AUC61% and Cmax35%.
How this applies: Exact oral daridorexant hydrochloride product; indirect preparation bridge for fruit extract.
Official fruit/juice guidance, not a standardized fruit-extract trial; extract furanocoumarin content and exact exposure unknown.
Research assessment: · Open full citations ↗
Timing & monitoring
Conditional only for fruit extracts retaining CYP3A4-inhibiting grapefruit constituents, extrapolated from exact-drug fruit/juice labeling. No direct extract PK or adverse-rate proof, no measured extract dose equivalence or validated protective gap; mechanism is reduced metabolism rather than proven increased intestinal uptake.
- Exact scope
- Citrus paradisi fruit extract, distinct from grapefruit seed extract and from a measured serving of juice; interacting constituent content unverified. with Daridorexant2591497 IN; oral QUVIVIQ hydrochloride tablets.
- Medication form and route
- oral medication; oral supplement
What remains uncertain
- Fruit/juice-to-extract extrapolation; composition unconfirmed. Does not apply to grapefruit seed extract or imply all extracts have equal effect.
Factors that may matter: Preparation; Dose; Other medicines; Organ function.
Read the supporting source summaries
Source 1: current product label
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid strong CYP3A4 inhibitors and moderate/strong inducers; moderate inhibitors limit dose25mg. CNS-depressant effects and next-day impairment, complex sleep behaviors.
How this applies: Exact daridorexant RxCUI 2591497 IN, with stated salt/formulation/route bridge.
No exact botanical extract PK trial or supplement-combination incidence; distinguish modeled strong-modifier effects from measured clinical data.
Source 2: current product label
ema.europa.eu · Source check Sep 10, 2026
Population: People prescribed daridorexant
Avoid grapefruit or grapefruit juice in the evening. CYP3A4 inhibition raises exposure; efavirenz reduced AUC61% and Cmax35%.
How this applies: Exact oral daridorexant hydrochloride product; indirect preparation bridge for fruit extract.
Official fruit/juice guidance, not a standardized fruit-extract trial; extract furanocoumarin content and exact exposure unknown.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Research summary published | |
| Article prepared | |
| Prepared exact daridorexant article with formulation-specific evidence and uncertainty. |
Article revision: d06c2285c0824536
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.