Semaglutide

About Semaglutide

Semaglutide mimics GLP-1, a gut hormone that raises insulin when blood sugar is high, slows stomach emptying and curbs appetite. With diet and exercise, Ozempic injection treats type 2 diabetes in adults, lowers the risk of heart attack, stroke and cardiovascular death in those with established cardiovascular disease and, since January 2025, of kidney failure, kidney decline and cardiovascular death in chronic kidney disease. Rybelsus and Ozempic tablets treat type 2 diabetes in adults and, since October 2025, lower cardiovascular risk in those at high risk. Wegovy injection treats obesity from age 12 and overweight with a related condition in adults, lowers that risk in adults with cardiovascular disease and excess weight, and since August 2025 (accelerated approval) treats MASH (a fatty liver disease) in adults with moderate to advanced scarring but no cirrhosis; Wegovy tablets (December 2025) cover the adult weight and heart uses. Doses rise about monthly, to at most 2 mg a week for Ozempic and usually 2.4 mg for Wegovy, or 7.2 mg (Wegovy HD, March 2026) for adults taking it for weight who tolerate 2.4 mg.

The boxed warning: semaglutide caused thyroid C-cell tumors in rodents, it is not known whether it does in people, and it must not be used with a personal or family history of medullary thyroid carcinoma or with multiple endocrine neoplasia type 2 (MEN 2). The labels also warn of pancreatitis, gallbladder disease, low blood sugar with insulin or a sulfonylurea, kidney injury from dehydration, severe stomach and bowel reactions, allergic reactions, worsening diabetic eye disease, a faster heart rate (Wegovy) and inhaling stomach contents under anesthesia or deep sedation. Nausea, vomiting, diarrhea, stomach pain and constipation are most common.

Ozempic tablets (a second Rybelsus formulation until renamed in January 2026) and Rybelsus tablets do not match milligram for milligram. The labels now include single-dose syringes and, since June 2026, a four-dose Wegovy FlexTouch pen; a Wegovy warning on suicidal behavior and ideation was removed in February 2026. As of October 2026 the FDA lists the semaglutide shortage as resolved. It says compounded semaglutide is not FDA-approved or reviewed for safety, effectiveness or quality, that some reported adverse events may be linked to dosing errors, and that it knows of no lawful basis for compounding with semaglutide sodium or acetate. The labels say to stop semaglutide at least two months before a planned pregnancy, and breastfeeding is not recommended with the tablets.

Taking Semaglutide

How to take it

Injections: once a week on the same day, with or without food, under the skin of the abdomen, thigh or upper arm, changing the spot each week. Tablets: one each morning on an empty stomach with up to 4 ounces of plain water, swallowed whole, then wait at least 30 minutes before eating, drinking or taking other oral medicines.

If you miss a dose

Ozempic injection: take it within 5 days, or skip it. Wegovy injection: take it if the next dose is more than 2 days away, or skip it; after two or more missed doses in a row, ask how to restart at a lower dose. Tablets: skip it and take the next one the next day.

Storage

Refrigerate unused pens and syringes in the carton; never freeze them. An Ozempic pen in use lasts 56 days at 59°F to 86°F or refrigerated; Ozempic single-dose syringes and Wegovy single-dose pens may be kept at 46°F to 86°F for up to 28 days. Keep tablets in their original bottle, in a dry place.

Interactions to know about

Insulin or a sulfonylurea raises the risk of low blood sugar, so those doses may be lowered. Slower stomach emptying can change how other oral medicines are absorbed, and the tablets can raise levothyroxine levels. Wegovy is not used with other semaglutide or GLP-1 medicines. Tell the care team before surgery or sedation.

This summarizes the official prescribing information. Your prescriber’s and pharmacist’s instructions, and the leaflet that comes with your medicine, take priority.

Why the cash price for Semaglutide differs from pharmacy to pharmacy

With no approved generic, every fill is priced as a brand. Packs differ (an Ozempic pen holds several weekly doses, a single-dose pen or syringe one, a Wegovy FlexTouch pen four), so compare quotes for the same product, strength and pack.

Ways to pay less for Semaglutide without insurance

• Ask the prescriber to write the exact product, form and strength; no brand or form can be swapped for another at the counter.
• Ask the maker whether a self-pay or savings program applies to someone paying cash; many copay cards require commercial insurance.
• Once your dose is stable, ask whether a prescription can cover more than a month, and compare pharmacies.
• Fill it only at a state-licensed pharmacy; the FDA has warned of counterfeit Ozempic in the US drug supply chain.
• Upload the prescription to Script Unlock so licensed pharmacies can quote their cash price. You pay the pharmacy directly.

Questions to ask your pharmacist about Semaglutide

1. 1.Is this the exact product, form and strength on my prescription?
2. 2.How long can my pen or syringe stay out of the refrigerator?
3. 3.Should my insulin, sulfonylurea or levothyroxine be checked?
4. 4.How should I time my tablet with breakfast and other medicines?

Related medications