Hunting for the cheapest Wegovy 0.5mg in the UK? You've reached the second rung of the dose ladder — the point where the starter-month promo codes have usually run out and you're paying the real ongoing rate for the first time. That's exactly when the price gap between pharmacies bites hardest, and where a bit of comparison shopping saves you real money every four weeks.

The good news: the 0.5mg pen is one of the cheaper doses to shop around for. As of our last check (24 August 2026), the same 0.5mg Wegovy pen ranges from about £108.97 to £179 across regulated UK pharmacies — a spread of roughly £70 for an identical medicine. Here's who's cheapest today and how to keep your bill down as you climb.

Key takeaway: The cheapest ongoing Wegovy 0.5mg we track is ASDA Online Doctor at £108.97/4 weeks, with Chemist4U (£109), Simply Meds Online (£109.99) and Click2Pharmacy (£109) close behind. The priciest is around £179 — so choosing well saves you roughly £70 a month for the identical pen.

Cheapest Wegovy 0.5mg in the UK: price comparison

The 0.5mg dose is week 5 to 8 of the standard titration schedule. You've usually spent your first-month discount on the 0.25mg starter pen, so 0.5mg is where you meet the true ongoing price. Below are real ongoing 0.5mg prices from GPhC-registered pharmacies and CQC-regulated clinics we track.

Provider0.5mg / 4 weeksRegulation
ASDA Online Doctor£108.97CQC-regulated (ZAVA)
Chemist4U£109GPhC pharmacy
Click2Pharmacy£109GPhC pharmacy
Simply Meds Online£109.99GPhC pharmacy
Boots Online Doctor£119GPhC + CQC
Oxford Online Pharmacy£118.96GPhC pharmacy
Simple Online Pharmacy£119GPhC pharmacy
Superdrug Online Doctor£119GPhC + CQC
LloydsPharmacy / MedExpress / ZAVA£119.99GPhC / CQC
The Weight Clinic£125GPhC pharmacy
The Independent Pharmacy£129.99GPhC + CQC + NHS
Voy£169GPhC + CQC
Numan / Second Nature£179GPhC + CQC

Every provider above is a legitimate, regulated UK pharmacy or clinic. The differences are commercial, not clinical — the pen from the £108.97 supplier is the same licensed Wegovy as the £179 one.

Why the cheapest headline isn't always the cheapest overall

ASDA wins on the single 0.5mg pen, but a bit of caution before you switch on price alone: your total cost is the whole ladder, not one month. Wegovy titrates gradually over about 16 weeks — 0.25mg for four weeks, then 0.5, 1 and 1.7mg for roughly four weeks each, reaching the 2.4mg maintenance dose from around week 17.

That matters because some pharmacies are cheap at 0.5mg but expensive higher up. Click2Pharmacy, for example, charges £109 all the way from 0.25mg to 1mg — brilliant value across the early doses — but their 1.7mg jumps to £168.99. Others, like Cloud Pharmacy, start pricey but hold steady, so they become competitive at 2.4mg.

If you want to see the whole ladder mapped out before you commit, our Wegovy cost by dose guide breaks down budgeting from 0.25mg to 2.4mg, and the live homepage price table is refreshed regularly.

How to actually save on the 0.5mg month

1. Spend your code on the starter month, then reassess

Most first-month discount codes (like £35 off with NEWME) apply only to the 0.25mg starter pen. By the time you reach 0.5mg the promo has usually expired, so this is the month to compare ongoing rates properly. See every current code on our verified Wegovy discount codes page before you order.

2. Don't chase a saving into a scam

The genuine ongoing floor for early Wegovy doses sits around £100–£110. Anything dramatically below that — a maintenance pen for £25, say, sold via social media DMs with no prescriber — is a fake, not a bargain. Our guide to Wegovy scams to avoid lists the eight warning signs worth memorising.

3. Switching pharmacy is allowed

You are not locked in. If you started at one clinic on the 0.25mg dose and a cheaper one covers 0.5mg, you can switch — you'll just complete a fresh consultation with the new provider. For a full walkthrough of doing this without cutting corners, read how to save money on Wegovy.

4. Check what's included

A slightly higher headline price can still be the better deal if it bundles prescriber reviews, sharps bins and next-day delivery. Our recommended provider, The Weight Clinic, prices 0.5mg at £125 with monthly video reviews and a refund if the prescriber declines you — worth weighing against a bare-bones £109 pen if you value the ongoing support.

Is 0.5mg the right dose to be buying?

0.5mg is a titration step, not a maintenance dose. It's designed to ease your body up the ladder and reduce side effects like nausea (which affects around 40% of people early on) — not to deliver full results on its own. The headline efficacy figures — roughly 15% average body-weight loss over 68 weeks in the STEP 1 trial — refer to the 2.4mg maintenance dose taken alongside lifestyle changes.

A prescriber decides when you move up. If side effects are tough, some people stay on 0.5mg a little longer before increasing — which, incidentally, can also stretch your budget. Report any side effects through the MHRA Yellow Card scheme. This article is price and information only, not medical advice.

Ready to compare and order?

The Weight Clinic is our recommended provider: a GPhC-registered pharmacy with monthly video reviews and a refund if the prescriber declines your consultation. New patients get £35 off the first order with code NEWME.

Check eligibility at The Weight Clinic →

The bottom line on cheap 0.5mg Wegovy

ASDA Online Doctor is the cheapest single 0.5mg pen at £108.97, closely trailed by Chemist4U and Click2Pharmacy at £109. But because Wegovy is a ladder, the smartest move is to check the price of your next two or three doses too — a pharmacy that's cheap at 0.5mg can turn expensive at 1.7mg. Compare the whole journey on the price table, and never let a suspiciously low price tempt you away from a regulated pharmacy.