Plain answers about GLP-1 medicines

Mounjaro, Wegovy and Foundayo explained in clear English. Doses, side effects, NHS access and what changes from one country to the next. Every guide links to its sources.

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228 guides

197 linked sources

32 country guides

Updated 11 October 2026

Pick your medicine

All medicines

Weekly injection

Mounjaro

tirzepatide

Licensed in the UK for weight management and type 2 diabetes. Doses, side effects, NHS access and switching.

36 guides Weekly injection

Wegovy injection

semaglutide

The weekly semaglutide pen. Dose steps from 0.25 mg, heart evidence, storage and missed doses.

38 guides Daily tablet

Wegovy pill

oral semaglutide

The daily semaglutide tablet. How to take it on an empty stomach and how it differs from the pen.

20 guides Daily tablet

Foundayo

orforglipron

The daily non-peptide tablet with no fasting rules. UK licence, doses and precautions.

20 guides

Also covered: Ozempic, Rybelsus, Saxenda, Trulicity and newer medicines in trials.

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Day-to-day life on treatment

Food, protein, sleep, alcohol, exercise and the side effects people ask about most. Practical answers you can use this week.

All living-with-treatment guides

Pen or tablet?

Side-by-side comparisons of the main medicines, with the trial figures and daily routine for each.

Buying or travelling abroad

Licences, prescriptions and import rules differ by country. Each guide names the regulator to check before you buy or pack your pen.

United Kingdom Ireland Spain France Portugal Italy Germany Greece Turkey United States Canada Australia United Arab Emirates Japan

See all 32 countries

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Read the trials yourself

The studies behind the headline weight loss figures: who took part, how long they ran and what the numbers mean for you.