SSRIs (selective serotonin reuptake inhibitors) raise available serotonin in the brain, easing the depressed mood, anxiety, and sleep disruption of PPD over a few weeks. Sertraline (Zoloft) is often chosen first postpartum because it passes into breast milk in very low amounts.
Antidepressants typically take 2–6 weeks to reach full effect. Early side effects (nausea, headache, sleep changes) usually fade. The decision to start, switch, or stop should always be made with a prescriber—never abruptly.
Medication treats the biology; it works best alongside therapy, sleep protection, support at home, and nutrition rebuilding that replaces what birth depletes.
See how this fits alongside other options in our treatment overview, and the medications used for PPD in the medication guide.
Selected recent peer-reviewed studies, pulled live from the U.S. National Library of Medicine (PubMed). Counts and citations update automatically.
Sertraline (Zoloft) is the most commonly recommended first-line SSRI while breastfeeding due to very low levels in milk. Your clinician decides based on your history.
Often 6–12 months after symptoms improve, but this is individualized. Never stop abruptly—taper with your prescriber.
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