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Clinical + experiential evidence

Cannabis (THC)

Cannabinoid·Recreational / illicit

Effect across the cycle

DesireBiphasic: Low doses may raise desire; high or chronic use suppresses it.
ArousalMixed: Variable; sensory enhancement for some, blunting for others.
PerformanceBiphasic: High or chronic use associated with erectile difficulty.
ClimaxMixed: Low doses reported as permissive for orgasm, particularly in women.
ExperienceFacilitatory: Heightened sensory and tactile experience commonly reported.
MemoryInhibitory: Acute impairment of encoding and short-term recall.

Mechanism

Partial agonist at CB1 (and CB2). CB1 is presynaptic and dense in hypothalamus, limbic areas and reward circuitry, modulating dopamine, GABA, glutamate and oxytocin. Low doses can enhance desire via dopaminergic disinhibition and anxiety reduction; heavy chronic use downregulates CB1 and suppresses function. Blunts hormones affecting female sexual function and can lower testosterone.

Pharmacokinetics
Inhaled onset minutes; oral delayed. Effects strongly dose- and tolerance-dependent.
Reversibility
Generally reversible; chronic heavy-use effects improve with abstinence.

Sex differences & notes

Women report more consistently positive effects on desire, arousal and orgasm than men. Low-dose THC is described as permissive for orgasm, especially in women.

Key sources

  • Kipping & Lynn 2022
  • Sexual Medicine Reviews 2020 (cannabinoids & female function)
  • Psychopharmacology 2024 update