Depression flattens desire, pleasure, and energy directly — loss of interest in things that used to be enjoyable is part of the definition, and sex is one of those things. The clinical difficulty is that the medicines that treat it also reduce desire and delay orgasm, so somebody who improves in mood but not in sex life genuinely cannot tell which is which without help.
See someone about this if
Thoughts of harming yourself need urgent help — contact your doctor, a crisis line, or emergency services now rather than waiting for an appointment.
Never stop an antidepressant abruptly; it needs a planned reduction with your prescriber.
What the condition itself tends to do
Editorial categories, not percentages, and never a prediction about you. Each links to the fuller picture of that change.
Wanting sex less often, or losing the spontaneous interest that used to arrive on its own. This is the effect people most often assume is psychological and most often is not only psychological.
The body responds less, or much more slowly, even when the interest is there. Blood flow, nerve signalling, and hormone levels all feed this, and medicines can act on any of the three.
Arousal works but orgasm does not arrive. When this starts within weeks of a new medicine and had never happened before, the timing itself is information.
Erections that are slower, softer, or do not hold. Because this depends on blood vessels and nerves, it can also be an early signal of something cardiovascular — which is why it is worth a clinical conversation rather than only a product.
Condition or treatment?
This is the hardest attribution problem on the site, and there is a useful clue in the timing: an effect that appeared within weeks of starting or increasing a medicine points at the medicine, while one that predates it points at the depression. Antidepressants also differ substantially from one another here, which makes sexual function a legitimate factor in the choice — if the prescriber knows it matters to you.
For almost every condition on this site, the condition and the medicines that treat it both affect sex — by different mechanisms, on different timescales, and with different answers. Being able to say which half you are asking about is the single most useful thing you can bring to an appointment, and it is the thing patients are least often given.
Medicine classes used here that carry sexual effects
SSRI antidepressantsFrequently reportedThe most commonly reported cause of medicine-related orgasm delay.
SNRI antidepressantsFrequently reportedSimilar profile to SSRIs, with noradrenaline effects layered on.
MirtazapineSometimes reportedLower orgasm impact than SSRIs; sedation is the bigger obstacle.
BupropionMore often helpsThe antidepressant least associated with sexual side effects.
Tricyclic antidepressantsFrequently reportedSerotonin effects plus a drying, sedating anticholinergic action.
MAOI antidepressantsFrequently reportedAn older class with well-documented sexual effects.
Never stop, pause, reduce, or change a prescribed medicine because of anything on this page. Some of the medicines listed here are dangerous to stop suddenly, and the condition being treated does not pause while you experiment. Everything here exists to make your next conversation with a prescriber more specific — not to replace it.
What helps
Say explicitly that sexual function matters to you; prescribers can weigh it, but only if it has been raised.
Note whether the change came before or after the medicine started — that timeline is the most useful thing you can bring.
Treating the depression well is usually the route back, not the obstacle to it.
Take these to an appointment
Is what I am noticing more likely the depression or the medicine?
Do antidepressants differ on this, and can that be part of the choice?
How long should I give this before we review?
Common questions
How does depression affect sex?
Depression flattens desire, pleasure, and energy directly — loss of interest in things that used to be enjoyable is part of the definition, and sex is one of those things. The clinical difficulty is that the medicines that treat it also reduce desire and delay orgasm, so somebody who improves in mood but not in sex life genuinely cannot tell which is which without help.
What are the most common sexual effects of depression?
The effects reported most often are lower sexual desire, fatigue or sedation getting in the way, and arousal is slower or harder to reach. Reported does not mean inevitable — the picture varies a great deal between people, and most people have more than one thing contributing at once.
Is it depression or the treatment for it?
This is the hardest attribution problem on the site, and there is a useful clue in the timing: an effect that appeared within weeks of starting or increasing a medicine points at the medicine, while one that predates it points at the depression. Antidepressants also differ substantially from one another here, which makes sexual function a legitimate factor in the choice — if the prescriber knows it matters to you. Timing is the most useful clue you have: an effect that appeared within weeks of starting or changing a treatment points at the treatment, while one that predates it points at the condition. Never stop, pause, or change a prescribed treatment to find out — take the timeline to the person who prescribed it.
Which treatments for depression have sexual side effects?
The classes commonly used here that carry documented sexual effects are ssri antidepressants, snri antidepressants, mirtazapine, bupropion, tricyclic antidepressants, and maoi antidepressants. Each has its own profile, so which one you are on matters — and that is a prescribing conversation, never a reason to stop anything.
What helps with the sexual effects of depression?
Say explicitly that sexual function matters to you; prescribers can weigh it, but only if it has been raised. Note whether the change came before or after the medicine started — that timeline is the most useful thing you can bring. Treating the depression well is usually the route back, not the obstacle to it.
When should I raise this with a clinician about depression?
Sooner than most people do, and specifically without waiting: Thoughts of harming yourself need urgent help — contact your doctor, a crisis line, or emergency services now rather than waiting for an appointment.
Educational information about what a diagnosed condition tends to do — not a diagnosis, not a way to work out whether you have something, and not advice about your treatment. Conditions on this page overlap, and most people with a long-term condition have more than one thing affecting them at once. Nothing here can examine you or run a test. Pain, bleeding, or a new and unexplained symptom always deserves assessment.