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Standing risks

RiskRecorded valuesConfidenceArticle section
Compulsive use risk, monitor frequency
Compulsive redosing
high
Dose escalation
moderate
mediumView in article: Compulsive use risk, monitor frequency

Lethal interactions

CombinationTypeSeverityMechanismsConfidence
GHB, GBLDrug classlethal2medium

Dangerous interactions

35 dangerous interactions recorded for this substance.

See the full interactions table

Contraindications

ConditionSeverityNote
Cardiovascular
cardiovascular diseaseabsolute

Pre-existing cardiovascular disease, uncontrolled hypertension, or structural heart conditions substantially increase the risk of acute cardiovascular events. Tachycardia and hypertension are consistently documented in clinical case reports.

Psychiatric
psychotic disordersabsolute

Personal or family history of psychotic spectrum disorders (schizophrenia, schizoaffective disorder) constitutes an absolute contraindication. NMDA antagonists acting at the PCP site are among the most reliably psychotomimetic drug classes.

bipolar disorderrelative

Bipolar disorder is a relative contraindication due to risk of mood destabilisation from combined NMDA antagonism and monoaminergic activation.

Renal
renal impairmentrelative

Pre-existing renal insufficiency increases the risk of acute kidney injury should rhabdomyolysis occur. Rhabdomyolysis is documented at the class level.

Pregnancy & Breastfeeding
pregnancyabsolute

No reproductive toxicity data exist for ephenidine. NMDA antagonist exposure during pregnancy is a theoretical concern based on the critical role of NMDA receptors in neurodevelopment. Absolute contraindication by precautionary principle.

Other
MAO inhibitor therapyabsolute

Concurrent or recent (within 14 days) use of MAO inhibitors is an absolute contraindication due to the risk of hypertensive crisis from synergistic sympathomimetic effects.

If this is going wrong

Reducing or stopping