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Antidepressants

People taking SSRI or SNRI antidepressants, compared with people who don't.

2 studies · newest 2026
New: Natasha 2026, 1,802 people

What's here so far

No field note has been written for antidepressants yet, so this page doesn't describe what studies found. It lists the 2 studies with results for antidepressants microbe by microbe, which a field note will draw on.

People take these medicines for reasons that can also go with different gut microbes.

Who's been studied

WhereGermany · Netherlands

How many2 studies · 3,685 people

HowEach person measured once

The studies

● measured once■ followed the same people▲ a trialsize = people

The effect of SSRI/SNRI antidepressant treatment on the gut microbiota of patients with major depressive disorder Communications Medicine · 2026 · Natasha 2026 · PubMed ↗ 1,802 people · 2 cohorts · Germany, Netherlands
Each person measured once · 16S sequencing (genus level)
Per-microbe tables open · CC BY 4.0 Competing interests None declared.

Impact of commonly used drugs on the composition and metabolic function of the gut microbiota Nature Communications · 2020 · Vich Vila 2020 · PubMed ↗ 1,883 people · 3 cohorts · Netherlands
Each person measured once · Shotgun sequencing
Per-microbe tables open · CC BY 4.0 Competing interests None declared.