Wegovy experiences: what users report and what your blood shows

Wegovy experiences vary a lot, but there is a clear pattern in them. Almost everyone reports that appetite drops within a week. The nausea usually arrives during titration, and the largest fall in weight takes well over a year.

Wegovy contains semaglutide, the same substance as Ozempic, but at a higher dose and with weight loss as its registered indication.

What no experience story contains is what happens in your blood meanwhile. That is a shame, because the pattern there is far less erratic than the one on the scale.

What do Wegovy users report?

Three things come up again and again. The first is that the constant thought of food disappears, often within a week. The second is nausea in waves around meals, usually in the first weeks of each new dose. The third is that taste changes: fatty and heavy food becomes less appealing.

People call that first point surprising more often than the weight loss itself.

The titration schedule explains much of those experiences. Wegovy steps up from 0.25 mg to 2.4 mg per week in four stages, four weeks apart. The Dutch Farmacotherapeutisch Kompas describes this schedule, and people who know it usually recognise their own complaints in it.

The step to a higher dose is often when complaints come back. That is not a relapse, but the same adjustment you went through in week one.

How fast does Wegovy work?

Appetite responds within days, weight within weeks, and the final result only after more than a year. In the STEP 1 trial participants lost an average of 14.9% of body weight after 68 weeks, against 2.4% on placebo. Half of them passed 15% (Wilding et al., 2021).

Those 68 weeks are rarely mentioned. Experience stories quote the end figure and drop the time attached to it, which makes week eight feel like failure.

To my mind that is the main reason people give up too early.

Which side effects do users report most?

Nausea, diarrhoea, constipation and reflux top the list. In STEP 1, 4.5% of participants stopped because of gastrointestinal complaints, against 0.8% on placebo. For most people the complaints were mild to moderate and temporary.

Rarer but more serious are problems with the pancreas and the gallbladder. Persistent severe abdominal pain radiating to the back is a reason to contact your GP, not a reason to wait it out.

The Dutch health information service Thuisarts advises contacting your GP about new or persistent abdominal complaints during medication use.

The full list of complaints, with what is measurable for each, sits in Ozempic side effects. Semaglutide is the same substance in both drugs, so that overview applies here too.

What does Wegovy cost and is it reimbursed?

For weight loss you pay yourself. Wegovy is not in the Dutch basic insurance package as a weight-loss drug, and costs in practice run to roughly 200 to 300 euro per month, depending on dose and pharmacy. Different rules apply for type 2 diabetes, but there a doctor usually prescribes Ozempic.

Prices and conditions change each year, so check this with your own insurer.

The full picture per drug sits in our article on weight-loss medication.

Which blood values move along?

The fastest response is in the sugar system. Fasting insulin and fasting glucose can fall within two to four weeks, simply because your intake drops. HbA1c only follows after eight to twelve weeks, because it measures an average over that period.

The rest comes later. Triglycerides and liver values usually move somewhere between month three and six. Storage values such as ferritin and vitamin B12 come last, because a lower intake needs months to become visible.

Lipase is the value rarely mentioned and still relevant with these drugs, because the pancreas is a known point of attention.

Our GLP-1 baseline panel records that starting point before the first injection changes what you measure, assessed by a BIG-registered doctor.

What happens if you stop Wegovy?

The weight largely comes back. In the STEP 1 extension participants regained roughly two thirds of the lost weight in the year after stopping, leaving a net 5.6% at week 120 (Wilding et al., 2022).

Continuing works differently. In STEP 4, participants who stayed on semaglutide lost a further 7.9%, while the group switched to placebo gained 6.9% (Rubino et al., 2021).

Blood pressure and sugar values usually drift back toward their old level too.

How the drug itself works is covered in GLP-1 injection.

What can you record yourself?

The starting point, and then a second measurement once the values have had time to move. For the sugar values that is after roughly three months. No schedule fits everyone, and your GP can think along about what makes sense in your situation.

What strikes me about the Dutch experience stories is how little gets measured. People track their weight to the hundred grams and have no idea what their liver or pancreas is doing.

If you are about to start, have your baseline values determined before you open the first pen.

References

• Wilding JPH et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity. N Engl J Med. 2021. PMID 33567185
• Wilding JPH et al. Weight regain and cardiometabolic effects after withdrawal of semaglutide: The STEP 1 trial extension. Diabetes Obes Metab. 2022. PMID 35441470
• Rubino D et al. Effect of Continued Weekly Subcutaneous Semaglutide vs Placebo on Weight Loss Maintenance. JAMA. 2021. PMID 33755728
• Farmacotherapeutisch Kompas, monograph for semaglutide (titration schedule).
• Thuisarts, information on abdominal complaints during medication use.

Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.