Cilostazol

For an informed discussion with your doctor or pharmacist. This information collection is not a clinically validated interaction checker. Missing data do not establish safety. Do not change or stop prescribed medicines on the basis of this information. The findings apply to the specific conditions studied; laboratory and animal studies cannot be directly extrapolated to humans.

Active substance: Cilostazol

Examples of brand names: Pletal [USA]

ATC code: B01AC23

Main use (for orientation): Peripheral arterial occlusive disease

Documented research summary

Inhibition of breakdown by cannabinoids warrants theoretical assessment. However, effects of other enzyme inhibitors are not measurements for CBD or THC.

Uncertainties and limitations

The net effect on active metabolites cannot be calculated from shared enzyme involvement.

A US label does not establish current German market availability.

Research is limited to the specified date and protocol; it is not globally exhaustive. Brand names and authorisations do not constitute a complete current market overview.

Structured assessment

Category: Theoretical context

Cannabinoid scope: 28 register names in the documented search family; neither 28 individual clinical trials nor a blanket assessment of all cannabinoids.

Evidence status: Theoretical plausibility; no verified clinical pair effect

Mechanism / drug context: Cilostazol: CYP3A4/CYP2C19, active metabolites; PDE-III inhibition.

Type of supporting material: Medicine information and documented individual review; no positive pair trial

Clinical interpretation: Requires individual assessment by a doctor or pharmacist. Lack of evidence does not establish safety; no dosage or discontinuation advice is provided.

Context: Oral cilostazol, Apotex, US label dated 10 September 2026: claudication indication, heart-failure contraindication, sections 7.1 and 12.1–12.3 read. Predominantly CYP3A4, secondary CYP2C19 contribution; active metabolites contribute substantially to PDE-III activity. Inhibitors can alter parent substance and active metabolites differently. Platelet inhibition, vasodilation and increased heart rate are properties of the active ingredient.

Drug context and gaps in search results are not measured interactions. The source role below describes which statement the source actually supports.

Source role [RLABEL_D0013]: Drug context

Statement supported: Supports dosage form, metabolism and/or known risks; alone, it does not substantiate a cannabinoid–drug pair finding.

Source: CILOSTAZOL TABLET [APOTEX CORP.] [RLABEL_D0013]

Scope of review: Individual research with documented title/abstract screening and targeted review of original sections. This is not exhaustive evidence that interactions are absent.

Unresolved source question: The complete stored individual review, label review, literature screening, conclusion and uncertainties were read. Targeted sections of original information were rechecked; no claim is made that all product information or full texts were completely revalidated.

Separately recorded findings

No separately substantiated finding for this drug–cannabinoid pair is recorded within the documented scope of review. This does not prove that no such study exists anywhere or that the combination is safe.

References and access status

[RLABEL_D0013] CILOSTAZOL TABLET [APOTEX CORP.]

Original source / bibliographic reference

Authors: Regulatory product information; respective marketing authorisation holder

Year: 2026

Source type: Product information / SmPC / US Prescribing Information

Source access – 23 October 2026: Source destination was accessible when checked.

Bibliographic attribution or source identity cross-checked.

Research as of 23 October 2026. Not all original full texts could be reviewed in full. Source accessibility and the strength of scientific evidence must be assessed separately. An accessible link does not establish medical approval; a bibliographic record with an abstract does not replace the original full text.

Drug search and explanation of the evidence · Guide: cannabinoids and medicines · Author and responsibility