Risperidone caused me to lactate and stopped my period.

Posted by tesslikespink @tesslikespink, Dec 18, 2021

Has this happened to anyone else? And if so, how long did it take for your period to become regular again after stopping medication?

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Hello @tesslikespink and welcome to Mayo Clinic Connect. I wasn't familiar with this so did some research and it appears to be a possible side effect, indeed. See the information I found and link to some additional information.

Reference Information:
Risperdal blocks dopamine’s action on the pituitary gland and can cause the levels of prolactin to increase and reach abnormal levels.

In women, prolactin stimulates breast development and breast milk production.

– Risperdal Side Effects:
https://www.drugwatch.com/risperdal/side-effects/#:~:text=Risperdal%20blocks%20dopamine's%20action%20on,development%20and%20breast%20milk%20production.
How long have you been taking Risperdal and did your physician share with you this possible side effect?

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