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Nobody wakes up excited about injecting themselves. Let’s face it. But when you have tried every diet under the sun – the keto, the 5:2, the cabbage soup one (yes, really) – and the scales just won’t budge, weight loss injections start to look pretty appealing.
I get it. I really do.
But here is the thing those glossy Instagram posts won’t show you. The side effects. The cost. The slightly awkward conversation with your GP when you ask about “those jabs everyone is talking about.”
So before you reach for your credit card, let me walk you through what actually happens when you start Mounjaro, or Wegovy, or Saxenda. The good bits. The rubbish bits. And whether PPRX is the right place for you.
Fair warning – this is not one of those fluffy blog posts that promises miracles. Because there are no miracles. There is just good medicine, sensible support, and a bit of grit.
Please note: By proceeding you understand and accept our order process below.
Right. Let’s get the unpleasant stuff out of the way first.
You know how the patient information leaflet that comes inside the box is about twelve pages long, printed in tiny font, and lists everything from “mild nausea” to “spontaneous tooth loss”? Okay, not tooth loss. But you get my point.
The most common side effects of Mounjaro, Ozempic and Wegovy are basically your digestive system staging a small protest. About one in ten people – actually, more than one in ten, according to the Boots clinical team – get nausea. Some people vomit. Some get the opposite problem and cannot stop running to the loo. And constipation? Very common. Like, annoyingly common.
Here is what happened to one of our patients (anonymous, obviously, I am not breaking confidentiality). Sarah – let us call her Sarah – started on 2.5mg of Mounjaro. First week, fine. Second week, she said she felt “like I had eaten a Christmas dinner that I never actually ate.” Full. Bloated. A bit sick. By week three, her body had figured out what was happening, and the nausea just… went away. Poof. Gone.
That is the pattern for most people. Rough two weeks. Then it settles.
But there are rarer things to watch for. Gallstones, for example. Sounds scary, right? But here is the nuance – gallstones happen because of rapid weight loss, not because of the injection itself. Lose weight too fast (more than 1.5kg a week) and your gallbladder gets grumpy. The solution? Don’t crash diet alongside the injection. Eat properly. Small meals. Steady loss.
And thyroid cancer? I know you have seen the headlines. Let me be absolutely clear – those studies were in rats. Not humans. Not even monkeys. The human data, and we are talking tens of thousands of patients now, has shown no link between these medications and thyroid cancer. The NHS says this. Boots says this. I am saying it too.
If you ever get severe abdominal pain that goes through to your back, and you cannot stop vomiting, call 111 or go to A&E. That could be pancreatitis. It is rare – uncommon, the official wording – but it is serious. Do not mess about with that.
This is the question nobody wants to answer. Because the answer is a bit uncomfortable.
When you stop the injections, your appetite comes back. Obviously. You are no longer taking a medicine that slows down your stomach and tells your brain “hey, you are full.” So yes, most people regain weight. Studies suggest about two-thirds of what you lost comes back within a year.
Depressing, right?
I am going to be blunt with you.
Unless you are very, very unwell – and I mean a BMI over 40 plus at least three other health conditions like diabetes, high blood pressure, and sleep apnoea – the NHS will not prescribe these injections for you.
The NICE guidelines are crystal clear. You need to be referred to a specialist weight management service (Tier 3, if you know the jargon). Then you wait. And wait. Some areas have waiting lists of eighteen months. Eighteen months!
Even then, the rollout is phased. The NHS itself says that initially, only patients with the highest clinical need – BMI of 40 or more AND four weight-related diseases – will get Mounjaro through their GP.
So if you are a 45-year-old teacher in Manchester with a BMI of 34 and knee pain that is making your life miserable, the NHS cannot help you. That is not me being critical of the NHS – they have limited resources and they are prioritising the sickest patients. Fair enough. But it does leave a lot of people stranded.
That is where private providers like PPRX come in. We use clinical judgment, not rigid thresholds. If your BMI is 30 or above, or 27 with a weight-related condition, and you have genuinely tried diet and exercise, you are likely eligible.
Free. No Obligation. No Pressure.
I am not a salesperson. I am not going to pretend these are perfect.
Disadvantage one: the cost. It is not cheap. A private prescription costs real money. At PPRX, we start at £194.99 for the 2.5mg dose. That gets you a four-week pen. As your dose goes up – and it needs to go up, because your body gets used to the lower doses – the price increases. 5mg is £214.99. 7.5mg is £274.99. 10mg is £304.99. 12.5mg is £324.99. And the top dose, 15mg, is £349.99 per month.
Over six months, you are looking at £1,500 to £2,200. That is a holiday. That is a new sofa. That is not pocket change.
Disadvantage two: the side effects. I covered these already, but they deserve repeating. Nausea is not fun. Neither is diarrhoea. Some people quit in the first month because they cannot handle it. That is not weakness – that is just biology. Everyone responds differently.
Disadvantage three: the commitment. You have to inject yourself every week. You have to remember to order your next pen before you run out. You have to check in with your clinician. It is not a one-and-done thing.
Disadvantage four: the rebound risk. I said it before and I will say it again – if you stop without a plan, the weight comes back. That is just reality.
So why do people still do it? Because for the ones who tolerate it, the benefits are huge. Twenty percent weight loss on Mounjaro. That is not a typo – twenty percent. For a 100kg person, that is 20kg gone. Your knees stop hurting. Your blood pressure drops. You might come off your diabetes medication entirely.
You have to weigh the disadvantages against that. Only you can decide.
Let me tell you how I think about this.
Say you spend £2,000 on a year of treatment. That sounds like a lot. But what is the alternative?
If you have prediabetes now, and you do nothing, you might develop full type 2 diabetes in five years. The lifetime cost of diabetes – medication, GP appointments, potential complications like retinopathy or kidney disease – runs into tens of thousands of pounds. Not to mention the toll on your quality of life.
Or take joint pain. If you are 20kg overweight and your knees are screaming every time you climb stairs, you might need a knee replacement in ten years. On the NHS, that costs the taxpayer about £8,000. Privately, triple that. Avoiding that surgery by losing weight now is not just healthier – it is financially smarter.
I am not saying weight loss injections are right for everyone. They are not. But for the right patient – someone who has tried everything, who understands the risks, who can afford the investment, and who is willing to change their lifestyle – yes, they are absolutely worth it.
One of our patients put it this way: “I spent £300 a month on takeaways and wine. Swapping that for a Mounjaro prescription and healthier food – I am actually saving money. And I have lost four stone.”
Your mileage may vary. But that is a pretty compelling story.
I hate hidden fees. You hate hidden fees. Everyone hates hidden fees.
So here is exactly what you pay at PPRX, dose by dose, no small print trickery.
Starting dose: 2.5mg – £194.99 per pen (four weeks)
Next step up: 5mg – £214.99
Getting serious: 7.5mg – £274.99
Halfway there: 10mg – £304.99
High dose: 12.5mg – £324.99
Maximum strength: 15mg – £349.99
You start on 2.5mg for four weeks. That is the “getting used to it” phase. Then, if you are tolerating it well, you move up to 5mg. And so on. Some people never need the top doses – they lose all their weight at 10mg or 12.5mg. That is fine. We do not push you up just for the sake of it.
Compare that to Boots, where the 7.5mg dose is £267.97. We are £274.99 – slightly more, yes, but our clinical support is more hands-on. You get a real person to message, not a chatbot. That matters when you are feeling rough at 2am and cannot work out if your nausea is normal or not.
I have done this consultation hundreds of times. Here is what people really want to know.
One. Do these injections have long-term side effects? The longest studies we have are about four years. No unexpected problems yet. Gallbladder issues are the main risk, and again, that is from fast weight loss, not the drug itself.
Two. Which is the best weight loss injection in the UK? Mounjaro works best – 20% weight loss on average. Wegovy has more safety data because it has been around longer. Both are good. Saxenda is older and less effective, so we rarely use it now.
Three. Can I get this on the NHS? Almost certainly not unless you are very severely unwell. I am sorry, but that is the truth.
Four. How much does private treatment cost? At PPRX, from £194.99 to £349.99 a month, depending on your dose.
Five. What if I miss a dose? Take it as soon as you remember, as long as it is within four days. Otherwise, skip it and take the next one on schedule. Do not double up.
Six. Can I drink alcohol? Yes, but go easy. Alcohol + nausea = bad time. Also, dehydration makes side effects worse, and alcohol dehydrates you. So moderate.
Seven. Will my hair fall out? Rapid weight loss from any cause – surgery, illness, or injections – can cause temporary hair shedding. It grows back. Annoying but temporary.
Eight. Do I need a special diet? You need a reduced-calorie, high-protein diet. The injection suppresses appetite, but it does not magically make broccoli taste like chocolate. You still have to make good choices.
Nine. How do I report a serious side effect? The Yellow Card Scheme. Run by the MHRA. Google it. Also tell us immediately so we can stop your treatment if needed.
Ten. Is PPRX actually legit? Yes. GPhC registered. Real pharmacists. Real consultations. Not some dodgy online operation selling knock-off pens from abroad.
Look, I am not here to pressure you into anything.
Weight loss injections are a tool. A powerful one, yes, but still just a tool. They work best when combined with honest effort on your part – eating better, moving more, sleeping properly, managing stress.
If you are ready for that, and you understand the side effects and the cost, then PPRX is here to help. Safely. Ethically. With no judgment and no nonsense.
Start your consultation today. Or just browse. Or bookmark this page and come back next week when you are feeling braver. Whatever works for you.
But whatever you do, do not let fear of side effects – or fear of the unknown – keep you stuck where you are. You deserve better than that.
Medical disclaimer: Weight loss injections are prescription-only medicines. A full clinical assessment is required before treatment. Side effects should be reported via the MHRA Yellow Card Scheme. Always consult a healthcare professional before starting any new medication. PPRX is a registered GPhC pharmacy.
Wegovy represents a significant advancement in medical weight loss. Yet, the most important question remains:
Is the treatment aligned with your health profile, goals, and expectations?
Through expert-led consultations and comprehensive care, PPRX ensures that each patient receives not just medication, but a structured pathway toward sustainable transformation.
