PsilodexMedication × psilocybin
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General prescriptions
Brand names
Cryselle, Low-Ogestrel
Reviewed 2026-10-02

Norgestrel / ethinyl estradiol

psilodex.org/m/norgestrel-ethinyl-estradiol · data v2026.10.02

Clinical contraindication
None listed
No clinical contraindication identified.
Best available evidence
Mechanism only
Half-life
Not recorded
Named in state rules?
CONot named
ORNot named
NMPending
Cite asPsilodex: norgestrel-ethinyl-estradiol · v2026.10.02

Clinical data and state rules are separate facts. Both are shown; neither is a decision.

01 Interaction with psilocybin

Th

No known interaction. Estradiol increases UGT1A9, one of the enzymes that clears psilocin, so estrogen-containing hormone therapy or contraceptives could in theory change psilocybin metabolism; the effect has not been measured.

No reported interaction is not a finding of safety: most combinations with psilocybin have never been studied. Whether this combination suits a particular person is for their prescriber and provider to decide.

Human data with psilocybin
None known: no published human data with psilocybin
Evidence types on this record
ThMechanism only (theoretical)

02 Pharmacology relevant to psilocybin

None listed

No pharmacology properties of concern are listed for this record.

03 State rules

Plain-language summary · official text governs
CO4 CCR 755-1
Not named

No provision names this medication or its class.

Colorado · checked 2026-09-30
OROAR 333-333
Not named

No provision names this medication or its class.

Oregon · checked 2026-09-30
NM7.35.3 NMAC (proposed)
Pending

New Mexico's clinical rules (proposed 7.35.3 NMAC) are not final. No provision naming this medication has been found.

New Mexico · checked 2026-10-02

04 Conditions to ask about

Screening items in state rules

This medication is usually taken for a condition. State rules screen for some conditions directly, so the medication is a prompt to ask about them. Confirm with the participant; never assume a condition from the medication.

  • Pregnancy possible

05 Sources

3
  1. Cryselle (Norgestrel and Ethinyl Estradiol) Kit · FDA label (DailyMed)
  2. Halman A, Kong G, Sarris J, Perkins D. Drug–drug interactions involving classic psychedelics: a systematic review. J Psychopharmacol 2024;38(1):3–18.
  3. Sarparast A, Thomas K, Malcolm B, Stauffer CS. Drug-drug interactions between psychiatric medications and MDMA or psilocybin: a systematic review. Psychopharmacology 2022;239(6):1945–1976. — Discussion: estradiol up-regulates UGT1A9 (Cho 2016); HRT and oral contraceptives may affect psilocybin metabolism.

Record history

  • v2026.10.02First published.
  • 2026-10-02Last reviewed against its sources.

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Before you startTerms v2026-10-01

What Psilodex is, and isn't.

  1. 01Psilodex summarizes published evidence and public state rules. It does not decide whether you can safely use psilocybin or take part in services, and it is not medical advice.
  2. 02Starting, stopping, or changing a medication is the prescriber's decision. Bring the report to them.
  3. 03Your searches and list stay in this browser and are not sent to us. Opening a medication's page is an ordinary web request, so our hosting providers see which page was opened. What we can and can't see.

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