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GLP-1 Decoder

Zepbound and Antidepressants: Is It Safe? Label, Studies

No antidepressant interaction is listed; ask your pharmacist about your specific medicine.

Verdict
Ask your prescriber first
Label names it
No
General caution
Pills absorbed more slowly

Check a GLP-1 interaction

Zepbound in brief

How long the drug stays in your body
100%50%25%0%05.5 d11 d16.5 d22 d27.5 d50%25%12.5%time after the dose

The half-life is 5 to 6 days. By 5.5 d, half has cleared, and about 3% remains once five half-lives are complete (27.5 d).

Weight drop seen in its main trial
SURMOUNT-1: 5 mg weekly15%SURMOUNT-1: 10 mg weekly19.5%SURMOUNT-1: 15 mg weekly20.9%Placebo3.1%

In SURMOUNT-1 over 72 weeks, body weight fell 20.9% versus 3.1% with placebo.

Cost over time
202420252026$1,086.37$0List priceSelf-pay

Monthly prices in US dollars include the list price and self-pay offers, all taken from the maker's price page.

Sources: FDA label (DailyMed), Eli Lilly 1 2, cnbc.com.

Zepbound and antidepressants: the verdict

Ask your prescriber first

Zepbound label: drug interactions section, quoted exactly:

“ZEPBOUND delays gastric emptying and thereby has the potential to impact the absorption of concomitantly administered oral medications. Caution should be exercised when oral medications”

Source: FDA label (DailyMed).

Details from the Zepbound label

No antidepressants are named in the Zepbound label. These statements still apply to it.

Drug interactions in the Zepbound label
Named in the labelThe riskWhat the label tells doctors
Oral medicinesPills absorbed differentlyThe medicine slows stomach emptying, so it can change how other pills are absorbed.

Source: Zepbound label (DailyMed).

What the studies show

Source: FDA label (DailyMed).

The practical rule

  1. Keep taking your antidepressant, and tell your prescriber if your mood changes or side effects get worse.
  2. Tell the person who prescribes your GLP-1 about every pill you take, including this one.
  3. Ask your pharmacist whether any of your pills need to stay at a steady blood level. Those may need checking when you start treatment or increase the dose.

Source: FDA label (DailyMed).

Antidepressants with other GLP-1s

None of the 10 GLP-1 labels names antidepressants in its drug interaction section. The same general caution for pills you swallow is included on every label, so the answer stays the same across the class.

That same question applies to Ozempic, Wegovy, Mounjaro.

Source: FDA label (DailyMed).