If you didn’t have a shot in a few months and you took a shot today, how long will it take for it to affect you?

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December 9, 2025
Long-Acting Injectable Antipsychotics for Schizophrenia: What To Know Read Article...
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How long does it take for a long-acting injectable antipsychotic to start working after a missed period?

Long-acting injectable (LAI) antipsychotics release medication slowly over time, which means they can take longer to work compared to pills. Because of this gradual release, it may take some time before you feel the Show Full Answer

How long does it take for a long-acting injectable antipsychotic to start working after a missed period?

Long-acting injectable (LAI) antipsychotics release medication slowly over time, which means they can take longer to work compared to pills. Because of this gradual release, it may take some time before you feel the full effects.

When restarting an LAI after missing doses for a few months, your healthcare provider may have you continue taking an oral antipsychotic medication temporarily. This helps maintain symptom control while the LAI builds back up in your system and fully kicks in.

In general, antipsychotic medications can make you feel calmer within a few hours, but it typically takes several days to weeks to see improvements in psychotic symptoms. For maximum effects, it might take four to six weeks.

Since you've had a gap in treatment, it's really important to talk with your healthcare team about what to expect. They can let you know if you need to take additional medication in the meantime and monitor how you're responding to the injection.

December 9, 2025
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