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GLP-1 Decoder

Rybelsus Heartburn: How Common, How Long It Lasts

The Rybelsus label names dyspepsia as a reported side effect but gives no trial rate for it.

In the label
Listed, no rate given
Label term
dyspepsia

Rybelsus: key facts

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, and about 3% remains after five half-lives (35 d).

Weight loss in its main trial
Rybelsus (PIONEER 1)3.7 kgPlacebo1.4 kg

In PIONEER 1, people with type 2 diabetes lost 3.7 kg over 26 weeks, compared with 1.4 kg on placebo.

Costs over time
20262027$1,027.51$0List priceSelf-pay

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

Sources: FDA label (DailyMed), healthsystemtracker.org, Novo Nordisk pricing, Novo Nordisk.

What the Rybelsus label includes instead

The Rybelsus label does not give a rate for heartburn or indigestion. The five side effects reported most often in the label appear below, each with a rate.

Table 2. Type 2 Diabetes Mellitus: Adverse Reactions in Placebo-Controlled Trials Reported in ≥5% of Semaglutide Tablets-Treated Patients
Side effectPlaceboRybelsus 7 mgRybelsus 14 mgMore than placebo, 14 mg
Nausea6%11%20%+14 points
Abdominal Pain4%10%11%+7 points
Diarrhea4%9%10%+6 points
Decreased appetite1%6%9%+8 points
Vomiting3%6%8%+5 points

Source: the Rybelsus label (DailyMed).

Rybelsus and other GLP-1s: Heartburn compared

Each label reports the trials it covers, and those trials used different groups of people. Treat it as a rough guide.

Heartburn and indigestion in GLP-1 labels
MedicineHighest rate in the labelDose groupPlaceboPeople in the trials
Foundayo16%9 mg4%Adults with obesity or overweight (weight management)
Zepbound10%15 mg4%Adults with obesity or overweight (weight management)
Saxenda9.6%all doses2.7%Adults with obesity or overweight (weight management)
Wegovy9%2.4 mg3%Adults with obesity or overweight (weight management)
Mounjaro8%5 mg3%Adults with type 2 diabetes
Victoza7%1.8 mg1%Adults with type 2 diabetes
Byetta6%all doses3%Adults with type 2 diabetes
Trulicity5.8%1.5 mg2.3%Adults with type 2 diabetes
OzempicListed, no rate given–––
RybelsusListed, no rate given–––

Sources: Wegovy label (DailyMed), Mounjaro label (DailyMed), Zepbound label (DailyMed), Foundayo label (DailyMed), Trulicity label (DailyMed), Saxenda label (DailyMed), Victoza label (DailyMed), Byetta label (DailyMed).

Source: the FDA label (DailyMed).

What may explain it?

These medicines slow how quickly the stomach empties. Heartburn and indigestion may develop when food stays in the stomach longer, especially after a big or fatty meal.

Source: health.clevelandclinic.org.

Details stated in the Rybelsus label

Heartburn and indigestion appear word for word in the label:

“7 mg once daily and placebo): abdominal distension (3%, 2% and 1%), dyspepsia (0.6%, 3%, 0.6%), eructation (2%, 0.6%, 0%,), flatulence (1%, 2%, 0%), gastroesophageal”

Source: the FDA label (DailyMed).

What helps, step by step

  1. For now, avoid spicy and fatty foods.
  2. After eating, stay upright instead of lying down.
  3. Choose smaller meals and stop eating when you feel full. With these medicines, the stomach empties more slowly.
  4. Eat slowly. Your brain needs time to notice that you are full.
  5. Keep fatty, greasy and sugary foods to a moderate amount, as they often bring symptoms on.
  6. Tell your prescriber if it does not ease. Another GLP-1 may be suggested by your prescriber, who may also slow the dose increases.

Check anything from the drugstore in the GLP-1 interactions checker before you take it.

Source: health.clevelandclinic.org.