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GLP-1 Decoder

Wegovy and Vyvanse: Is It Safe? Label, Studies

No interaction is listed, but both can curb appetite; ask your prescriber before combining.

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

Check a GLP-1 interaction

Wegovy in brief

How long it remains in the body
100%50%25%0%07 d14 d21 d28 d35 d50%25%12.5%time after the dose

Its half-life is about 1 week: after 7 d, half is gone, while about 3% remains once five half-lives (35 d) have passed

Body weight lost in its main trial
Wegovy (STEP 1)14.9%Placebo2.4%

In STEP 1, which lasted 68 weeks, body weight fell 14.9%, compared with 2.4% on placebo

Cost over time
202520262027$1,349.02$0List priceSelf-pay

Each month’s figures in US dollars cover the list price and self-pay offers, based on the maker's price page

Sources: FDA label (DailyMed), healthsystemtracker.org, prnewswire.com 1 2.

Wegovy and Vyvanse: the verdict

Ask your prescriber first

The Wegovy label gives this passage word for word in its drug interactions section:

“WEGOVY causes a delay of gastric emptying and thereby has the potential to impact the absorption of concomitantly administered oral medications. In clinical pharmacology trials”

The source is the DailyMed FDA label

What the Wegovy label says

The Wegovy label does not name Vyvanse. These lines still cover it.

Drug interactions in the Wegovy label
Named in the labelThe riskWhat the label tells doctors
Oral medicinesPills absorbed differentlyThe delay in stomach emptying can affect how other pills are absorbed by your body

Source: Wegovy label (DailyMed).

What the studies show

The source is the DailyMed FDA label

The practical rule

  1. Let your prescriber know that you take both, and report a racing heart or eating very little
  2. Tell the person who prescribes your GLP-1 about every pill you take, including this one.
  3. Ask your pharmacist whether your pills need to maintain a steady blood level. When you start or raise the dose, those may need to be checked.

The source is the DailyMed FDA label

Vyvanse with other GLP-1s

None of the 10 GLP-1 labels mentions Vyvanse in its drug interaction section. Each label gives the same general caution about swallowed pills, so the answer remains the same for this entire group.

The source is the DailyMed FDA label