Citalopram

Clinical contraindication: None listed; No clinical contraindication identified.
Best available evidence: Open-label trial; Also: case reports.
Half-life: ~35 h; Approximate, in adults. Detail in 01.

Named in state rules?

CONot named

ORNot named

NMPending

Cite asPsilodex: citalopram · v2026.10.02

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

01 Interaction with psilocybin

OL · CR

Blunting common; serotonin syndrome risk low.

Human data with psilocybin: Human studies with psilocybin
Common practice: Most clinical trials required discontinuation beforehand (Tap 2025); one trial gave psilocybin alongside a continued SSRI (Goodwin 2023). Whether to change the medication is the prescriber's decision.
Half-life: ~35 h (FDA label, checked 2026-09-30)

Evidence types on this record

OLOpen-label trial

CRCase reports or online surveys

3 listed · counted on reports

Withdrawal or rebound if stopped abruptly: Stopping suddenly can cause withdrawal or a rebound of symptoms. Any change to the dose is the prescriber’s decision. Sources [1]
QT-prolonging: Lengthens the QT interval on an ECG, a measure of the heart’s electrical recovery between beats. A long QT raises the risk of a dangerous heart rhythm, more so with other QT-prolonging drugs or low potassium or magnesium. Sources [1]
Serotonergic: Increases serotonin activity, for example by blocking its reuptake or releasing it. Psilocybin acts on serotonin receptors, so effects can add together. With antidepressant use, the psilocybin response can be weaker. Sources [1]

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 2026-09-30

None linked

No condition named in state rules is linked to this medication.