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GLP-1 Decoder

Took Too Much Semaglutide? Symptoms, What to Do, When to Call

If you took more semaglutide than prescribed, call Poison Control at 1-800-222-1222 or your prescriber now. The risks to watch are severe vomiting, dehydration and, if you also take insulin or a sulfonylurea, low blood sugar.

Poison Control
1-800-222-1222
FDA-approved since
2017
People in its major trials
44,905

A quick look at Wegovy

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

The half-life is about 1 week. Once 7 d pass, half is gone, and by five half-lives (35 d), about 3% remains.

Weight loss in the main trial
Wegovy (STEP 1)14.9%Placebo2.4%

Over 68 weeks, STEP 1 found a loss of 14.9% of body weight, compared with 2.4% on placebo.

What it costs over time
202520262027$1,349.02$0List priceSelf-pay

Prices each month are shown in US dollars. They include the list price and self-pay offers, read from the maker's price page.

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

Too much semaglutide: what to do

  1. Reach Poison Control by phone at 1-800-222-1222, or through the online tool on that site. The service is free and confidential.
  2. Call 911 if there is a seizure, breathing trouble, fainting, or if the person cannot stay awake.
  3. Keep the vial, pill pack or pen with you so you can identify what was taken and how much.
  4. Until Poison Control or your prescriber gives you instructions, do not take your next dose.
  5. If you are vomiting, sip fluids, and if you have a meter, check your blood sugar.

Sources: FDA label, PubMed, poison.org.

Source: FDA label (DailyMed).

Possible effects the label warns about

Source: FDA label (DailyMed).

Serious side effects and how common they are

These rates come from the label trials, with placebo from the same trials beside them.

Serious side effects with semaglutide
ProblemLabelOn the drugOn placeboMore
Gallbladder problemsWegovy4% (2.4 mg)0%Not listed
Blood sugar that goes too lowWegovy6% (2.4 mg)2%Not listed
VomitingOzempic9.2% (1 mg)2.3%Read more

Sources: Ozempic label (DailyMed), Wegovy label (DailyMed), Rybelsus label (DailyMed).