Many women on antipsychotics who try to conceive are surprised to find it harder than expected. The most common reason is prolactin elevation — a side effect of certain antipsychotics that can suppress ovulation. The good news is that prolactin-related fertility issues are usually reversible. With informed medication choice and patience, most women on antipsychotics can conceive when they want to.
Antipsychotics can reduce fertility — most often through prolactin elevation that suppresses ovulation — but the effect is generally reversible with medication choice and dose adjustment, and most women on antipsychotics can conceive with appropriate planning.
How antipsychotics affect fertility
Prolactin elevation
Antipsychotics block dopamine D2 receptors. In the pituitary gland, dopamine normally suppresses prolactin secretion. Block dopamine, and prolactin rises. High prolactin in turn suppresses gonadotropin-releasing hormone, which suppresses LH and FSH, which suppresses ovulation. The result: irregular or absent periods and reduced fertility.
Antipsychotics that most consistently elevate prolactin:
- Risperidone
- Paliperidone
- Haloperidol and other high-potency first-generation agents
- Amisulpride (where available)
Antipsychotics that minimally elevate or are prolactin-sparing:
- Aripiprazole, brexpiprazole, cariprazine (partial agonists)
- Olanzapine (mild)
- Quetiapine (mild)
- Clozapine (minimal)
- Lumateperone
See our hyperprolactinaemia article for more detail.
Weight and metabolic effects
Several antipsychotics drive weight gain that can in turn contribute to insulin resistance, polycystic ovary syndrome–like patterns, and reduced fertility independent of prolactin. Olanzapine and clozapine are the heaviest-hitting.
Sexual side effects
Reduced libido and arousal are common on multiple antipsychotics, though the impact on conception specifically is less direct.
Underlying schizophrenia itself
Schizophrenia is associated with somewhat lower fertility rates overall, partly due to medication effects, partly due to social factors (lower partnership rates, life disruption from illness). Studies in the era of long-acting injectable use have suggested that fertility patterns in women with schizophrenia have moved closer to general-population rates as treatment has improved.
How to evaluate fertility concerns
If you're trying to conceive on an antipsychotic and not succeeding after several months:
- Document your menstrual pattern
- Check a serum prolactin level (your psychiatrist or PCP can order this)
- Check thyroid function, which can also affect fertility
- Standard fertility evaluation — including partner evaluation — applies
If prolactin is elevated and connected to your antipsychotic, the conversation shifts to medication options.
Medication switches for fertility
If a prolactin-raising antipsychotic is keeping you stable but is interfering with fertility, options include:
- Switching to a prolactin-sparing antipsychotic (aripiprazole is commonly used for this)
- Reducing the dose if clinically possible
- Adding aripiprazole to lower prolactin while continuing the original agent (an off-label but well-supported strategy)
- In selected cases, dopamine agonists (cabergoline, bromocriptine) — but these can destabilise psychosis and are used with caution
Once prolactin normalises, ovulation often returns within weeks to a few months, and fertility recovers.
Conception planning
For women planning pregnancy, the same conversation supports several goals at once:
- Choose an antipsychotic with reasonable reproductive safety data — see our pregnancy and antipsychotics piece
- Choose an antipsychotic with low prolactin effect to allow conception
- Optimise stability and dose
- Begin folic acid
- Plan the postpartum
See preconception counselling.
Assisted reproductive technology
Women with schizophrenia who use IVF or other ART can do so safely with coordinated psychiatric and reproductive endocrinology care. The fertility hormones used in stimulation cycles can affect mood and sleep; the psychiatrist should be informed.
Men with schizophrenia
For partners who are men with schizophrenia, antipsychotics can also affect fertility — through prolactin elevation, sexual side effects, and effects on sperm parameters. The same principles apply: prolactin-sparing agents are preferable; switching to aripiprazole or adding it can help.
Discontinuing an antipsychotic to "give fertility a chance" carries serious relapse risk. Any change should be planned with your psychiatrist, ideally before active conception attempts.
Practical questions
- What is my prolactin level?
- Is there a prolactin-sparing antipsychotic that could work for me?
- How long after switching might fertility return?
- Should I see a reproductive endocrinologist?
- What is the plan for managing pregnancy and postpartum?
Resources
- ACOG infertility evaluation
- Reproductive Facts (American Society for Reproductive Medicine)
- MGH Center for Women's Mental Health
The bottom line
Antipsychotics can reduce fertility, but the effect is usually reversible. Most women who want to conceive can do so with the right medication choice, attention to prolactin, and coordinated care between psychiatry and reproductive medicine. The key is starting the conversation early — ideally before active attempts — so the path forward is planned, not improvised.
This article is for educational purposes only and is not medical advice, diagnosis, or treatment. Always consult a qualified mental health professional. If you or someone you know is in crisis, call or text 988 in the US, or your local emergency number.