What is Rybelsus?

Rybelsus is semaglutide — the medicine in Ozempic — as a tablet you take once a day, for adults with type 2 diabetes. It is registered in Australia for adults whose type 2 diabetes is not well enough controlled, alongside diet and exercise: on its own when metformin is not suitable, or together with other diabetes medicines (healthdirect — Rybelsus). Rybelsus 3, 7 and 14 mg tablets have been on the Australian Register of Therapeutic Goods since 7 February 2022 (ARTG search), and it is a prescription-only medicine (Schedule 4).

Semaglutide is a GLP-1 receptor agonist. Medicines of this class increase the insulin you make after a meal, reduce the glucose your liver makes and help you feel full for longer after eating (healthdirect — Diabetes medicines). The other GLP-1 medicines are injections; in Rybelsus the semaglutide is combined with an absorption enhancer, salcaprozate sodium, so that it can be absorbed from the stomach (Rybelsus Product Information). That is why the way you take it matters so much.

How to take Rybelsus: the 30-minute rule

Take it on an empty stomach, swallowed whole with up to half a glass of water (120 mL), then wait at least 30 minutes before the first meal or drink of the day or any other tablets. Waiting less than 30 minutes may decrease the absorption of semaglutide (Rybelsus PI).

  • Empty stomach. Food taken with it reduces the amount of semaglutide absorbed, which is why most people take it on waking.
  • Whole. Do not split, crush or chew the tablet.
  • Other tablets wait too. In a trial where semaglutide was taken together with five other tablets, the amount absorbed fell by about a third — so take your other medicines at least 30 minutes after Rybelsus.
  • One tablet a day. If you miss a dose, skip it and take the next dose the following day.
  • Storage. Below 30°C, in the original blister pack, to protect the tablets from moisture and light.

Rybelsus dosage: 3 mg, then 7 mg, then 14 mg

Everyone starts on 3 mg once a day for one month, then moves to 7 mg; after at least a month on 7 mg, the dose can go up to 14 mg. 14 mg is the maximum single daily dose (Rybelsus PI). Your doctor decides when you step up and where you stay.

StrengthPlace in the labelWhen it applies
3 mgStarting doseThe first month only
7 mgMaintenance doseFrom the second month
14 mgHigher maintenance dose, the maximumAfter at least one month on 7 mg, if blood glucose needs more control

Two 7 mg tablets are not a 14 mg dose: taking two to get the effect of 14 mg has not been studied and is not recommended. If you also take a sulfonylurea (such as glimepiride) or insulin, your doctor may lower that dose when you start Rybelsus, to reduce the risk of hypoglycaemia. You do not need to test your blood glucose to adjust Rybelsus itself; testing is needed to adjust a sulfonylurea or insulin.

How much does Rybelsus cost, and is it on the PBS?

The price table at the top of this page is our current price list, in Australian dollars, with one tab for each strength — 3, 7 and 14 mg. Within a strength the price per tablet falls as the pack gets bigger, so compare the per-tablet column. Buy the strength your prescription names: 3 mg is only for the first month.

Rybelsus is not on the PBS. The PBS lists semaglutide for type 2 diabetes only as Ozempic injection pens, as Authority Required items (PBS — semaglutide 14844G, 14163K), and healthdirect's Rybelsus entry shows no PBS listing, while its Ozempic entry does (healthdirect — Ozempic). So a Rybelsus prescription carries no PBS subsidy wherever it is filled. Medicines prescribed for weight loss are not covered by Medicare either (healthdirect — Weight loss medicine).

Rybelsus, Ozempic or Wegovy: what is the difference?

All three are semaglutide; Rybelsus and Ozempic are for type 2 diabetes, Wegovy is for weight management. healthdirect: "Ozempic is approved in Australia for type 2 diabetes"; "Wegovy is approved for chronic weight management" (healthdirect).

RybelsusOzempicWegovy
Medicinesemaglutidesemaglutidesemaglutide
FormTablet, once a dayInjection pen, once a weekInjection
Approved in Australia forType 2 diabetesType 2 diabetesChronic weight management
On the PBSNoYes, for type 2 diabetes (Authority Required)Weight-loss medicines are not covered by Medicare
Sold by usYes — the price table aboveNoNo

Sources: ARTG search, healthdirect, PBAC public summary document, March 2021 (Ozempic "once weekly"). Switching between the tablet and the injection is not a like-for-like swap of doses; it is your doctor's decision. The other GLP-1 medicine we sell, Victoza (liraglutide), is an injection pen registered for type 2 diabetes. More on how semaglutide works: semaglutide for type 2 diabetes.

Does Rybelsus cause weight loss?

Rybelsus is not a weight-loss medicine: in Australia it is registered for type 2 diabetes only. Its label reports weight as a trial result in adults with type 2 diabetes. In a 26-week trial of Rybelsus on its own, average weight fell by 2.3 kg on 7 mg and 3.7 kg on 14 mg, against 1.4 kg on placebo, from a starting weight of about 88 kg; in the trials, weight fell more on Rybelsus than on the comparators studied (placebo, sitagliptin, empagliflozin and liraglutide) (Rybelsus PI).

Those are averages in people with diabetes over six months, not a promise. The semaglutide registered for chronic weight management is Wegovy, a different product at different doses, and we do not sell it. If weight is your main concern, that is a question for your GP.

Rybelsus side effects

The common side effects are in the gut: nausea in 15% of people, diarrhoea in 10% and vomiting in 7%. Most were mild to moderate and short-lived, they were reported most often in the first months, and they led 4% of people to stop treatment. Headache, constipation and a decreased appetite were also more common than on the comparators (Rybelsus PI).

  • Dehydration. Vomiting and diarrhoea can dehydrate you, which in rare cases can worsen kidney function — drink enough fluid while you have them.
  • Pancreatitis. Severe, persistent pain in the stomach area can be acute pancreatitis; if it is suspected, Rybelsus is stopped.
  • Hypoglycaemia. Low blood glucose is mainly a risk when Rybelsus is taken with a sulfonylurea or insulin; take care when driving in that case.
  • Eyes. If you have diabetic retinopathy, your eyes need monitoring: a rapid improvement in blood glucose has been linked with a temporary worsening.

Who should not take Rybelsus?

Anyone allergic to semaglutide or to anything else in the tablet — the one contraindication in the Australian label (Rybelsus PI). The label also says:

  • it is not for type 1 diabetes or for diabetic ketoacidosis;
  • it should not be used during pregnancy or breastfeeding; women who could become pregnant are advised to use contraception, and it should be stopped at least 2 months before a planned pregnancy;
  • it is not recommended with end-stage kidney disease or with the most severe heart failure (NYHA class IV), and care is needed after pancreatitis;
  • its safety in people under 18 has not been established.

On the thyroid: semaglutide caused thyroid C-cell tumours in rats and mice, a known effect of GLP-1 medicines in rodents. The Australian label considers the relevance for humans low, though it cannot be completely excluded. Tell your doctor about any thyroid condition.

Rybelsus and other medicines

The label names two medicines that need monitoring when you start Rybelsus: levothyroxine and warfarin. Rybelsus raised the exposure to thyroxine by about a third, so thyroid tests may be needed; with warfarin, your INR should be checked often at the start. Metformin, oral contraceptives, digoxin and furosemide showed no clinically relevant change (Rybelsus PI).

For every other tablet the rule is timing: take it at least 30 minutes after Rybelsus. The common painkiller question is answered in can ibuprofen be taken with Rybelsus? How Rybelsus fits among the other type 2 diabetes medicines is on our diabetes medicines page.

Counterfeit Rybelsus: the TGA warning

In June 2025 the TGA warned that counterfeit Rybelsus-labelled tablets had been stopped at the Australian border. The manufacturer, Novo Nordisk, confirmed that batch number PS6LA8S is not genuine; the TGA's advice is to stop using any tablets with that batch number and take them to a local pharmacy for safe disposal (TGA safety advisory, 25 June 2025). Check the batch number on every pack you receive, whoever you buy from.

Delivery to Australia

Every order is dispatched from India or Hong Kong, not from an Australian warehouse, and there is no shopfront. Express parcels take 5–9 days and regular parcels 10–14 days; orders from A$320 ship free. The full terms are on the delivery conditions page.

Sources