Jardiance is not a semaglutide. They are two completely different medications that belong to different drug classes, work through different mechanisms, and are taken in different ways. Jardiance is the brand name for empagliflozin, an SGLT2 inhibitor, while semaglutide is a GLP-1 receptor agonist sold under the brand names Ozempic, Wegovy, and Rybelsus. Both are used to treat type 2 diabetes, which is likely why they get confused, but they do very different things inside your body.
How Jardiance Works
Jardiance belongs to a class of medications called SGLT2 inhibitors. It works in the kidneys by blocking a protein that normally reabsorbs sugar back into your bloodstream. With that protein blocked, excess glucose leaves your body through urine instead. This kidney-based mechanism also has a mild diuretic effect, which helps lower blood pressure.
You take Jardiance as a daily pill (typically 10 mg or 25 mg). Beyond blood sugar control, it has an unusually wide range of FDA-approved uses: reducing the risk of cardiovascular death in adults with type 2 diabetes and heart disease, treating heart failure in adults regardless of whether they have diabetes, and slowing the progression of chronic kidney disease. That kidney and heart protection is a distinguishing feature of this drug class.
How Semaglutide Works
Semaglutide mimics a gut hormone called GLP-1 that your body naturally releases after eating. This hormone signals the pancreas to produce more insulin, tells the liver to release less sugar, slows stomach emptying, and acts on appetite centers in the brain to reduce hunger. The result is lower blood sugar and, for many people, significant weight loss.
Semaglutide comes in multiple forms. Ozempic is a once-weekly injection approved for type 2 diabetes. Wegovy is a higher-dose weekly injection approved for weight management and, as of 2024, for reducing the risk of heart attack, stroke, and cardiovascular death in adults with obesity or overweight who also have cardiovascular disease. Rybelsus is a daily oral tablet used for type 2 diabetes.
Side Effects Feel Very Different
Because these drugs work on entirely different systems, their side effects don’t overlap much. Jardiance’s most common issues stem from its kidney mechanism. Urinary tract infections affect 8 to 9 percent of users, vaginal yeast infections occur in 5 to 6 percent of women, and some people notice they urinate more frequently. These make sense: more sugar passing through the urinary tract creates a friendlier environment for bacteria and yeast.
Semaglutide’s side effects are almost entirely gastrointestinal. Nausea is the big one, affecting 16 to 20 percent of people on Ozempic. Diarrhea (9 percent), vomiting (5 to 9 percent), stomach pain (6 to 7 percent), and constipation (3 to 5 percent) round out the list. These tend to be worst during dose increases and often improve over time as your body adjusts.
Weight Loss and Blood Sugar: How They Compare
Both medications lower blood sugar, but semaglutide generally produces greater reductions in both HbA1c (a measure of average blood sugar over three months) and body weight. An 18-month study comparing the two found that patients on semaglutide lost more weight than those on empagliflozin. Jardiance does cause some weight loss through calorie loss in urine, but it’s more modest.
Where Jardiance pulls ahead is kidney protection. That same study found that markers of kidney damage reached significantly lower levels in the empagliflozin group compared to semaglutide, consistent with the well-documented kidney-protective properties of SGLT2 inhibitors. Jardiance also produced a greater drop in diastolic blood pressure, likely due to its diuretic effects.
Some People Take Both
Because these drugs work through completely independent pathways, doctors sometimes prescribe them together. The combination can be more effective than either drug alone. In clinical studies, combining an SGLT2 inhibitor with a GLP-1 agonist reduced HbA1c by about 2 percent and produced roughly 3.4 kg of weight loss, with both results beating what either medication achieved on its own. Blood pressure and fasting glucose also improved more with the combination.
In one retrospective study, patients who added an SGLT2 inhibitor to an existing GLP-1 regimen saw an additional blood pressure drop of 7 mmHg and further weight loss on top of what the GLP-1 had already achieved. Total weight loss in these patients reached about 10 kg. The combination may also offset certain risks: the small chance of ketoacidosis seen with SGLT2 inhibitors may be reduced when a GLP-1 agonist is on board.
Insurance Coverage Differs Significantly
Jardiance, as an established oral diabetes medication, generally faces fewer insurance hurdles than semaglutide. The coverage picture for semaglutide depends heavily on why it’s prescribed. Most insurance plans cover semaglutide for diabetes (Ozempic, Rybelsus), but coverage for the weight loss version (Wegovy) is far more restricted.
Medicare covers semaglutide for diabetes but is prohibited by federal law from covering it for weight loss. Out-of-pocket costs for GLP-1 medications on Medicare have risen sharply, with some plans nearly doubling monthly costs between 2024 and 2025. Prior authorization requirements have also surged, going from roughly 5 percent of Medicare beneficiaries in earlier years to nearly 100 percent by 2025. Medicaid coverage for weight loss versions varies by state, and only 13 states covered GLP-1s for weight loss in adults as of mid-2024, with some states actively pulling back coverage.
How to Take Each Medication
Jardiance is a once-daily pill, typically taken in the morning with or without food. The simplicity of a daily tablet is a practical advantage for people who prefer not to inject.
Semaglutide as Ozempic or Wegovy is a once-weekly injection you give yourself with a prefilled pen, usually in the abdomen, thigh, or upper arm. The oral version (Rybelsus) is a daily tablet, but it comes with specific instructions: you take it on an empty stomach with no more than 4 ounces of plain water and wait at least 30 minutes before eating, drinking, or taking other medications. That timing requirement can be inconvenient compared to Jardiance’s straightforward dosing.