SSRIs and Low Libido: What to Know
16 min read
SSRIs, sexual desire, orgasm, arousal, erections, medication side effects, and relationship intimacy
When an SSRI Helps Your Mind but Your Sexual Response Feels Quieter
SSRIs can be effective treatments for depression and anxiety, but they can also affect sexual function for some people. The change may show up as lower libido, slower arousal, delayed orgasm, difficulty reaching orgasm, erection problems, reduced lubrication, or simply feeling less sexually responsive than before.
SSRIs can cause low libido and other sexual side effects. Citalopram, escitalopram, fluoxetine, paroxetine, and sertraline are commonly used SSRIs, and sexual effects may include reduced desire, difficulty reaching orgasm, and erection problems. Depression and anxiety themselves can also affect sexual function, so timing matters. If the change began after starting or changing an SSRI, tell the prescribing clinician rather than reducing, skipping, or stopping the medication yourself.
What Are SSRIs?
SSRIs are selective serotonin reuptake inhibitors.
They are a widely used group of antidepressants prescribed for depression and several anxiety-related conditions.
Common SSRIs include:
- sertraline;
- fluoxetine;
- citalopram;
- escitalopram;
- paroxetine.
SSRIs affect serotonin signalling in the brain.
That can help improve symptoms of depression and anxiety.
But serotonin is also involved in systems that interact with sexual motivation, arousal, orgasm, erection, and sensation.
That is why sexual side effects can appear even when the medication is helping psychologically.
An SSRI can be helping your mental health and still be changing your sexual response. Those two experiences can exist at the same time.
Can SSRIs Cause Low Libido?
Yes.
Reduced sexual desire is a recognised possible side effect of SSRIs.
But “low libido” can be too broad a label.
Some people truly notice less sexual interest.
Others still want sex mentally but find that their body responds differently.
For example:
- arousal takes longer;
- orgasm becomes difficult;
- erections are less reliable;
- sexual sensation feels muted;
- lubrication changes;
- sex requires much more stimulation than before.
That distinction matters because desire, arousal, erection, lubrication, and orgasm are not exactly the same thing.
What Sexual Side Effects Can SSRIs Cause?
Lower desire
You may think about sex less often, initiate less, or notice that spontaneous sexual interest has become quieter.
Delayed orgasm
Orgasm may take substantially longer than before, even when the sexual activity still feels pleasurable.
Difficulty reaching orgasm
Some people find that orgasm becomes unusually difficult or temporarily impossible.
Erection difficulties
Some men may have trouble getting or maintaining an erection despite still feeling attraction or sexual interest.
Slower physical arousal
The mental desire for intimacy may be present while the body's physical response takes longer to develop.
Changes in lubrication or sensation
Some people report that genital response or sexual sensation feels different after beginning treatment.
The exact pattern varies widely.
One person may mainly notice delayed orgasm.
Another may mainly notice low desire.
Another may notice no sexual side effects at all.
Why Can SSRIs Affect Sexual Desire and Response?
SSRIs increase serotonin activity.
That is part of how they produce their therapeutic effect.
But sexual response depends on several interacting chemical and neurological systems rather than serotonin alone.
Changes in serotonergic signalling can interfere with pathways involved in:
- sexual motivation;
- physical arousal;
- erection;
- orgasm;
- genital sensation.
This does not mean serotonin is “bad for sex.”
Human sexual response is more complicated than a single neurotransmitter.
It means a medication that changes one part of the system can sometimes alter sexual response as an unintended effect.
Sexual side effects are not proof that the medication is failing. They may occur alongside significant improvement in depression or anxiety.
Which SSRIs Are Linked With Sexual Side Effects?
Sexual side effects can occur with several SSRIs.
Mayo Clinic lists SSRIs such as citalopram, escitalopram, fluoxetine, paroxetine, and sertraline among antidepressants that can cause sexual problems.
| SSRI | Sexual effects that may occur |
|---|---|
| Sertraline | Reduced desire, delayed orgasm, difficulty reaching orgasm, or erection difficulties may occur in some people. |
| Fluoxetine | May affect desire, arousal, orgasm, or erectile response. |
| Citalopram | Sexual problems such as lower desire, orgasm difficulty, or erectile difficulties may occur. |
| Escitalopram | May produce sexual effects similar to other SSRIs in some people. |
| Paroxetine | Is particularly associated with sexual side effects among commonly used SSRIs. |
This does not mean every person taking these medicines will experience sexual problems.
The medication, dose, individual biology, mental-health condition, other medicines, physical health, and relationship context all matter.
Even if one SSRI appears more likely to cause sexual side effects than another, switching medication is a clinical decision. The medication that produces fewer sexual effects may not be the safest or most effective option for your condition.
Is the Low Libido From the SSRI or From Depression?
Sometimes both are involved.
Depression itself can reduce sexual desire.
It may also reduce:
- pleasure;
- energy;
- motivation;
- self-esteem;
- interest in social connection;
- capacity to become excited about previously enjoyable activities.
Anxiety can also interfere with sexual response by making it difficult to relax, stay present, or become absorbed in physical sensation.
Then an SSRI is introduced.
Mood may improve.
But sexual function may remain low or change in a different way.
The timeline can help.
| What changed? | What may be worth considering |
|---|---|
| Libido was already low before treatment | Depression, anxiety, stress, health, and relationship factors may already have been involved. |
| Sexual desire dropped clearly after starting the SSRI | The timing makes a medication effect worth discussing with the prescriber. |
| Desire remains but orgasm became difficult | The problem may be sexual response rather than libido itself. |
| Symptoms changed after a dose increase | This is useful information to give the prescriber. |
| Sexual interest changes mainly with relationship conflict | The SSRI may not explain the whole pattern. |
The most useful clue is often not simply that you take an SSRI, but what your sexual function was like before treatment and what changed afterwards.
For the broader medication picture, see Antidepressants and Low Libido: What Can Change Sexual Desire?.
How Can SSRIs Affect Sexual Function in Women?
Women may notice:
- less spontaneous sexual desire;
- less frequent sexual thoughts;
- slower physical arousal;
- reduced lubrication;
- changes in genital sensation;
- delayed orgasm;
- difficulty reaching orgasm.
This can be especially confusing when emotional attraction remains intact.
You may still love your partner.
You may still think they are attractive.
You may even want to want sex.
But the sexual response itself feels quieter or slower.
That does not automatically mean the relationship has changed.
It may mean the sexual response system is being affected by treatment, depression, anxiety, or several factors at once.
For the wider female libido picture, see Low Libido in Women: Why Sexual Desire Can Change.
How Can SSRIs Affect Sexual Function in Men?
Men may notice:
- lower sexual interest;
- erections taking longer to develop;
- difficulty maintaining an erection;
- delayed ejaculation;
- difficulty reaching orgasm;
- changes in sexual sensation.
This can easily become a relationship misunderstanding.
The partner may assume:
If he were attracted to me, his body would respond.
But erection is not a direct lie detector for attraction.
Medication, anxiety, cardiovascular health, hormones, diabetes, sleep, alcohol, and other factors can all affect erectile response.
If this is part of the pattern, see Erectile Dysfunction and Emotional Intimacy.
For male desire more broadly, see Low Libido in Men: Causes and Relationship Effects.
SSRI Sexual Side Effects Can Become a Relationship Problem Even When the Relationship Did Not Cause Them
This is where a physical side effect can start producing emotional consequences.
The person taking the SSRI may think:
Why don't I want sex anymore?
Why can't I orgasm?
Am I disappointing my partner?
Will they think I don't love them?
The partner may think:
Why don't they initiate?
Why does sex seem so difficult now?
Have they lost attraction?
If the medication effect is not recognised, both partners may invent explanations.
Then the original side effect can create:
- sexual pressure;
- guilt;
- rejection sensitivity;
- performance anxiety;
- resentment;
- avoidance;
- less affectionate touch.
The sexual change may have started with the SSRI, but repeated misunderstanding can create a second problem between the partners. Treating those as separate layers can make the situation easier to understand.
Why Can Pressure Make SSRI-Related Low Libido Worse?
If sexual response is already slower, pressure can add another barrier.
The person may begin thinking:
I need to get aroused.
I need to orgasm.
I need to prove I'm still attracted.
I need to make this work because my partner is upset.
Now sex has become a performance task.
That can make it harder to stay present or enjoy the experience.
Eventually, avoiding sex may feel safer than risking another difficult encounter.
The SSRI may slow sexual response. Pressure can then turn that slower response into anxiety and avoidance.
If this has started happening, see Performance Anxiety and Avoiding Sex.
If sex has become something you feel required to provide, see Why Sex Can Start Feeling Like an Obligation.
Can Responsive Desire Still Happen on an SSRI?
Yes.
Not feeling spontaneous desire does not automatically mean there is no capacity for sexual interest.
Some people experience responsive desire.
They may begin from a neutral but genuinely willing state and develop desire after affectionate or erotic stimulation begins.
That distinction can be useful when an SSRI has reduced spontaneous sexual thoughts.
No sexual interest
“I don't want sexual contact.” That boundary should be respected without trying to manufacture desire.
Neutral but open
“I'm not sexually excited yet, but I would enjoy kissing or touching and seeing whether desire develops.”
An SSRI may also mean arousal develops more slowly than before.
That can make longer, lower-pressure intimacy more useful than expecting immediate sexual response.
Do not use responsive desire as a reason to push through reluctance. It only applies when the person genuinely wants to begin some form of intimate contact and remains free to stop.
Read What Is Responsive Desire? and Why Don’t I Feel Desire Until Sex Has Already Started?
What Can Help With SSRI Sexual Side Effects?
There is no single solution that is appropriate for everyone.
The prescribing clinician may consider the severity of the side effects, how well the SSRI is treating the underlying condition, the dose, other medication, and your wider health.
Options that may be discussed include:
Waiting to see whether effects improve
Some side effects may become less noticeable as the body adjusts, although persistent problems deserve review.
Reviewing the dose
A clinician may consider whether the current dose remains appropriate. Do not change it yourself.
Considering another medication
Some antidepressants may have fewer sexual side effects for some people, but switching requires clinical guidance.
Addressing a specific sexual difficulty
Erection problems, painful sex, orgasm difficulties, anxiety, or lubrication concerns may sometimes need separate assessment.
Reviewing other contributors
Depression, anxiety, sleep, alcohol, hormones, physical illness, and other medicines may also be involved.
Reducing sexual pressure
A slower sexual response may be easier to work with when intimacy is not treated as a test of attraction or relationship health.
Mayo Clinic notes that clinician-guided approaches can include waiting, dose adjustment, switching antidepressants, or in some cases adding treatment aimed at sexual side effects.
Those decisions should be individualised rather than copied from somebody else's treatment plan.
What Information Should You Give Your Doctor?
The more specific you can be, the easier the pattern is to assess.
Useful details include:
- the name of the SSRI;
- the dose;
- when you started it;
- whether the problem began before or after treatment;
- whether symptoms changed after a dose increase;
- whether the problem is desire, arousal, erection, lubrication, orgasm, or sensation;
- whether masturbation is affected too;
- whether the sexual problem happens consistently;
- other prescription medicines or supplements you take;
- how well the SSRI is controlling the depression or anxiety;
- how much the sexual effects are affecting your relationship or quality of life.
“I still want sex, but since starting sertraline it takes much longer to reach orgasm” is more useful clinical information than simply saying “my libido is gone.”
Should You Stop an SSRI Because of Low Libido?
Not on your own.
Sexual side effects are a legitimate reason to request a medication review.
But abruptly stopping or changing an antidepressant can create problems.
Do not:
- skip doses before sex;
- reduce the dose without advice;
- stop the SSRI suddenly;
- switch antidepressants without the prescriber's involvement;
- add herbal sexual supplements without checking interactions.
Antidepressants can require gradual adjustment, and stopping treatment can also risk the return or worsening of the condition being treated.
If the effect is serious enough that you are thinking about stopping the medication, tell the prescribing clinician. Sexual health is a legitimate part of weighing the benefits and side effects of treatment.
What if the SSRI Works Extremely Well for Your Mental Health?
This can make the decision feel complicated.
You may think:
I finally feel like myself again mentally.
and at the same time:
I don't feel like myself sexually.
It is understandable not to want to destabilise treatment that is working.
The issue does not need to be framed as:
mental health versus sex.
A clinician can help weigh both.
That includes considering:
- how much the medication has helped;
- how disruptive the sexual effects are;
- whether the effects are improving;
- whether another contributor can be treated;
- whether changing treatment would create other risks or side effects.
You do not have to dismiss sexual side effects just because the medication is helping. You also do not have to abandon effective treatment because sex has changed.
How Can Couples Handle SSRI-Related Low Libido Without Blame?
Start by separating the medication effect from the emotional story around it.
The person taking the SSRI might say:
My sexual response has changed since starting treatment. I still care about you and I don't think this automatically means attraction is gone.
The partner might say:
I understand this may be medication-related. I still miss our sexual connection, but I don't want sex to become something you have to provide to reassure me.
That creates space for both people's experience.
The medication side effect is taken seriously.
The partner's sense of loss is taken seriously.
And neither is converted into pressure.
An SSRI-related sexual problem can affect both partners without either person causing it. Treating the situation as a shared problem can be more useful than deciding who should simply cope better.
For communicating about desire directly, see How to Talk to Your Partner About Low Libido.
If repeated rejection is creating resentment, see How to Handle Sexual Rejection Without Resentment.
When Low Libido Should Not Automatically Be Blamed on the SSRI
The medication may be important without explaining everything.
Other possible contributors include:
- ongoing depression;
- anxiety;
- chronic stress;
- sleep deprivation;
- menopause or other hormonal changes;
- pain during sex;
- vaginal dryness;
- low testosterone;
- diabetes;
- cardiovascular illness;
- thyroid problems;
- relationship conflict;
- resentment;
- performance anxiety;
- other medications.
If libido remains persistently low or the cause is unclear, see When a Change in Sexual Desire May Need Medical Support.
SSRI-Related Sexual Changes Are Not Proof That Attraction Is Gone
This is the point worth keeping clear.
Someone can still:
love their partner;
feel emotionally close;
find them attractive;
want physical affection;
and still experience less sexual desire or a different physical sexual response while taking an SSRI.
Attraction and medication side effects are not mutually exclusive.
If sexual function changed after starting an SSRI, do not use the bedroom alone to decide what your partner feels about you.
This article is part of the Sexual Intimacy and Desire in Relationships: Complete Guide.
For antidepressants more broadly, see Antidepressants and Low Libido: What Can Change Sexual Desire?.
For the main desire question, see Why Have I Lost Interest in Sex With My Partner?.
For separating attraction from libido, see Have I Lost Attraction or Is My Libido Just Low?.
FAQ: SSRIs and Low Libido
Can SSRIs cause low libido?
Yes. SSRIs can reduce sexual desire in some people and may also affect arousal, orgasm, erections, lubrication, or sexual sensation.
Which SSRIs can cause sexual side effects?
Sexual side effects can occur with commonly used SSRIs including sertraline, fluoxetine, citalopram, escitalopram, and paroxetine. The severity varies from person to person.
Can SSRIs make it harder to orgasm?
Yes. Delayed orgasm and difficulty reaching orgasm are recognised possible side effects of SSRIs.
Can SSRIs cause erectile dysfunction?
SSRIs can contribute to erection difficulties in some men, although anxiety, depression, physical health, hormones, alcohol, and other medications may also be involved.
How do I know if my low libido is from the SSRI?
The timeline can provide clues. A clear sexual change after starting the SSRI or increasing the dose is useful information, but depression, anxiety, health, and relationship factors may also contribute.
Should I stop taking my SSRI if my libido is low?
Do not stop or change an SSRI on your own. Discuss the side effect with the prescribing clinician, who can review the benefits, risks, dose, and possible alternatives.
Do SSRI sexual side effects improve with time?
Some people find sexual side effects become less troublesome as their body adjusts, while others continue to experience them. Persistent effects deserve discussion with the prescriber.
Does low libido on an SSRI mean I have lost attraction to my partner?
No. An SSRI can change sexual desire or response while emotional attachment and physical attraction remain intact.
Sources
- Mayo Clinic. Selective serotonin reuptake inhibitors (SSRIs). View source.
- Mayo Clinic. Antidepressants: Which cause the fewest sexual side effects? View source.
- National Institute of Mental Health. Mental Health Medications. View source.
- Mayo Clinic. Antidepressants: Get tips to cope with side effects. View source.
- Mayo Clinic. Low sex drive in women: Diagnosis and treatment. View source.
Editorial note: SSRI-related sexual changes can overlap with depression, anxiety, physical health, hormones, other medication, and relationship factors. Do not stop, skip, or alter prescription antidepressants without guidance from the prescribing clinician.
