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REPORTED SIGNALS

semaglutide

Ozempic · Wegovy · Rybelsus

Registration status unknownDrugglp-1Novo Nordisk Pharmaceutical Industries, LP
ORAL

1 INDICATIONS AND USAGE RYBELSUS and OZEMPIC tablets are indicated: • as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. • to reduce the risk of major adverse cardiovascular (CV) events (CV death, non-fatal myocardial infarction or non-fatal stroke) in adults with type 2 diabetes mellitus who are at high risk for these events. RYBELSUS and OZEMPIC tablets are glucagon-like peptide-1 (GLP-1) receptor agonists indicated: • as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. ( 1 ) • to reduce the risk of major adverse cardiovascular events (cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke) in adults with type 2 diabetes mellitus who are at high risk for these events. ( 1 )

Mechanism. 12.1 Mechanism of Action Semaglutide is a GLP-1 analogue with 94% sequence homology to human GLP-1. Semaglutide acts as a GLP-1 receptor agonist that selectively binds to and activates the GLP-1 receptor, the target for native GLP-1. GLP-1 is a physiological hormone that has multiple actions on glucose, mediated by the GLP-1 receptors. The principal mechanism of protraction resulting in the long half-life of semaglutide is albumin binding, which results in decreased renal clearance and protection from metabolic degradation. Furthermore, semaglutide is stabilized against degradation by the DPP-4 enzyme. Semaglutide reduces blood glucose through a mechanism where it stimulates insulin secretion and lowers glucagon secretion, both in a glucose-dependent manner. Thus, when blood glucose is high, insulin secretion is stimulated and glucagon secretion is inhibited. The mechanism of blood glucose lowering also involves a minor delay in gastric emptying in the early postprandial phase.

FDA BOXED WARNING

FDA requires a boxed warning on this label. See full prescribing information.

Read full label →
82,911
reports (FAERS)
53.7%
reported as serious
1,355
fatal reports (1.6%)
29
signals above threshold
2017
first approved
2026-07
last updated
TIMELINE · FDA MILESTONES
Approved
2017
Class II recall
2021
2016
2026
SIGNAL RANKING · ROR

What stands out in the reports.

On the labelNew signalUnknown & frequent
Symptom
0.1110100
ROR [95% CI]
Impaired Gastric Emptying
92.1 [88.396.0]
Eructation
17.2 [16.218.3]
Glycosylated Haemoglobin Increased
11.9 [11.212.6]
Intestinal Obstruction
7.7 [7.28.1]
Pancreatitis
7.5 [7.17.9]
Blood Glucose Decreased
Intended effect
7.1 [6.77.5]
Constipation
6.3 [6.16.4]
Decreased Appetite
Intended effect
5.8 [5.76.0]
Illness
5.1 [4.95.3]
Flatulence
5.0 [4.75.3]
Dyspepsia
4.8 [4.65.0]
Vomiting
4.7 [4.64.8]
Dehydration
4.4 [4.34.6]
Nausea
4.4 [4.34.5]
Abdominal Distension
4.4 [4.24.6]

ROR = reporting odds ratio (log scale). A value above 1 means the symptom is reported more often for this product than for all other products combined. This measures how much it stands out in reports — not cause, not risk.

INTERPRETATION
Auto-generated

Semaglutide reports show disproportional signals for impaired gastric emptying, intestinal obstruction, pancreatitis, and constipation. These are logical, as semaglutide slows digestion. Decreased blood glucose and appetite are also disproportionately reported, which is expected as these are intended effects of the medication. Remember, "frequently reported" does not mean "frequently caused." This does not replace medical advice.

This does not replace medical advice.

LABEL VERSUS REPORT
On the label

No signals currently mapped to the label.

Newly reported
Impaired Gastric Emptying
Eructation
Glycosylated Haemoglobin Increased
Intestinal Obstruction
Pancreatitis
Blood Glucose Decreased
Constipation
Decreased Appetite
REPORTS OVER TIME

Report volume per quarter.

20172018201920202022
RECALL HISTORY · 1 ON RECORD
DateClassReasonFirm
Mar 15, 2021IICGMP Deviations: Intermittent exposure to temperature excursion during storage.Cardinal Health Inc.

Class I = reasonable probability of serious harm · Class II = temporary or reversible · Class III = unlikely to cause harm. Source: openFDA enforcement.

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SOURCE & CITATION
HealthProves. semaglutide — reported signals. Retrieved 2026-07-04. Source: openFDA (FAERS). healthproves.com/semaglutide/
FAERS82,911 records
Retrieved2026-07-04
MethodROR / disproportionality