Wegovy 1g: Clarifying the Dose That Doesn't Quite Exist

The myth worth correcting: 1g is not a Wegovy dose format

A fair number of people arrive at this topic having seen "1g" written on a forum, a social media post or a reseller listing. Grams are the wrong unit. Wegovy is dosed in milligrams, and the quantities involved are small, fractions of a milligram at the start, a few milligrams at maintenance. If someone is offering you a "1g Wegovy pen", that is either a misunderstanding of units or, more worryingly, a sign that what's being sold is not a genuine licensed product at all.

The MHRA has been clear about the risks of semaglutide sold through unverified channels: fake pens have been seized in large quantities across the UK, some containing entirely different substances. Reporting anything suspicious is straightforward via the MHRA's Yellow Card scheme. That single check (looking up a pharmacy on the GPhC register before you hand over any payment) takes under a minute and tells you whether the business is legitimate.

So when someone says "Wegovy 1g", the most charitable reading is that they mean the 1.0mg weekly injection dose. That's a real step in the schedule, and it has a specific role.

Where 1.0mg sits on the titration ladder and why you probably won't stay there

Wegovy's titration exists to manage the gastrointestinal side effects that tend to be sharpest when semaglutide first enters your system. The 0.25mg starting dose is deliberately low, it lets your body adjust before the dose that actually does the metabolic heavy lifting arrives. The steps that follow (0.5mg, then 1.0mg) continue that process of steady acclimatisation.

At 1.0mg, many people notice the appetite-suppressing effect becoming more pronounced. But this is still below the doses used in the pivotal STEP 1 trial, where 2.4mg produced an average weight reduction of around 15% over 68 weeks. The NHS semaglutide medicines page sets out the schedule clearly: 1.0mg is a rung on the way up, typically held for four weeks before the prescriber decides whether to continue the climb.

Some people do stay at 1.0mg longer, tolerability varies, and a prescriber may judge that side effects need more time to settle before the next increase. That is a clinical decision, not a deviation from the plan. What matters is that the decision is made by someone who knows your picture, not by a generic protocol running on a timer.

For context on the 2.4mg maintenance dose and how the full schedule works, the Wegovy overview covers the licensed programme in detail.

Side effects at this dose range and what to watch for

Nausea is the side effect people mention most at 1.0mg, not because this step is uniquely harsh, but because it often coincides with the period when the medicine's effects become genuinely noticeable. Loose stools, indigestion, burping and occasional fatigue are also reported. For most people these settle within a week or two of a dose change.

More serious symptoms warrant prompt medical attention: severe, persistent stomach pain that travels toward the back can be a sign of pancreatitis, which is a known but uncommon risk with GLP-1 medicines. The MHRA highlighted this in a 2026 Drug Safety Update and advises seeking urgent care if that pattern of pain appears. Signs of an allergic reaction, significant dehydration from persistent vomiting or diarrhoea, and any sudden mood changes should also be discussed with a clinician without delay.

These are prescription medicines for a reason. The Wegovy side effects and safety page goes further on what to expect and when to act, and the semaglutide information page covers the wider clinical picture.

Private access, cost context and how a prescriber reviews progression

On the NHS, Wegovy is available through specialist weight management services under NICE guidance, but waiting lists are commonly long and eligibility criteria are strict. Private prescribing through a GPhC-registered pharmacy is the route most people take when they want to start without that wait, subject to a clinical assessment confirming suitability.

The cost of private Wegovy treatment varies by dose and provider. If you're comparing prices across services, the cost of Wegovy in the UK page explains what legitimate pricing typically covers and what to check before committing. One honest point: a prescription medicine priced far below every other provider is a reason to look harder at the source, not a reason to celebrate.

At nume, a GPhC-registered Independent Prescriber reads every consultation personally on the day it's submitted. There are no auto-renewals; each repeat order gets a fresh clinical review. If you're already on semaglutide at 1.0mg and considering your next steps, or if you're earlier in the process and weighing up your options, speaking to our prescribers is a sensible starting point. You can also read about the 2mg Wegovy step or the 5mg semaglutide discussion if those are relevant to where you are in treatment.