Starting from
per month
Average weight loss
of body weight over 72 weeks
Strengths available: 2.5 mg | 5 mg | 7.5 mg | 10 mg | 12.5 mg | 15 mg
Select a time online or call. Complete a health questionnaire and bring a list of your medications.
Our pharmacist measures height, weight, BMI, and blood pressure, reviewing your medical history and current medications for suitability.
Collect your pen at the pharmacy, where we demonstrate its use. Schedule your four-week review before leaving.
Mounjaro contains tirzepatide. It copies two gut hormones, GIP and GLP-1, which both play a part in appetite and blood sugar control.
Most other weight loss injections act on GLP-1 alone. Tirzepatide works on both receptors. This is likely why it shows bigger results in clinical trials. For example, in SURMOUNT-1, participants lost an average of 15% to 21% of their body weight over 72 weeks.
The medicine slows how quickly your stomach empties, so you feel full sooner and stay full for longer. It also quiets food thoughts between meals.
Appetite reduction is the mechanism. The weight comes off because you eat less, not because the drug burns fat.
We run this as a managed treatment programme, not a one-off sale. Every supply follows a clinical check.
Your first appointment takes around 20 minutes in a private room on the premises. There is no video call and no online form standing in for a consultation.
Our independent prescriber works in the pharmacy, which means decisions about starting, holding or stepping up your dose happen face-to-face.
We also keep your GP informed with your consent, so your weight management sits alongside the rest of your care.
Mounjaro is injected once a week, on the same day each week, at any time of day, with or without food. If changing your injection day, ensure at least 3 days (72 hours) have elapsed between doses.
The 2.5 mg dose is a starting step, not a treatment dose. It gives your digestive system time to adjust.
We leave at least four weeks between increases. If side effects are troubling you, we hold you at your current dose rather than pushing on. Treatment progress is evaluated at 6 months; if at least 5% of initial body weight has not been lost, treatment suitability will be reassessed and may be discontinued.
Many people settle at 10 mg and stay there. There is no clinical benefit in reaching 15 mg if a lower dose is working.
You may be eligible if you are aged between 18 and 84 years and:
Cardiometabolic risk starts at a lower BMI in individuals of South Asian, Chinese, Black African, African-Caribbean or Middle Eastern family backgrounds. Eligibility will be evaluated during your clinical assessment.
Mounjaro delays gastric emptying, which carries a risk of pulmonary aspiration during surgery or procedures requiring general anaesthesia or deep sedation. Always inform your anaesthetist or surgical team that you are taking Mounjaro prior to any procedure.
One point people often miss: Mounjaro can reduce how well the oral contraceptive pill is absorbed. We will discuss a non-oral method or a barrier method for four weeks after starting and after each dose increase.
Each price covers one pen, which holds four weekly doses. Your consultation, dose reviews and ongoing pharmacist support are included at no extra charge.
There is no joining fee, no subscription and no charge for your follow-up appointments.
You pay for the strength you are actually on. Most people start at £195 and move up gradually.
Mounjaro produces the largest average weight loss of the three, which is why most patients choose it.
Wegovy is a well-established alternative with a longer track record and a smaller injection volume. It suits people who have already responded to semaglutide.
Foundayo is new to the UK and is taken as a daily tablet rather than an injection. It avoids needles, but the average result is lower.
Speak to our pharmacist about which of the three fits your health history and your preference. All three are prescription-only.
Allow around 20 minutes. The appointment happens in our consultation room, away from the shop floor.
We start with measurements: height, weight, BMI, waist and blood pressure. These become your baseline for every later review.
We’ll review your medical history, current medications, past weight loss efforts, and any issues you’ve faced.
Expect questions about gallstones, pancreas problems, thyroid history and bowel conditions. These are the ones that change the decision.
We will also talk about what you eat and when. Protein intake matters more than people expect, because appetite suppression can cost you muscle as well as fat.
If you are suitable, you leave with your pen, your dose schedule and a review date. If you are not, we explain why and discuss other options.
Most side effects are digestive and most settle within a few weeks. They are usually strongest in the first days after a dose increase.
Get medical help the same day if you have severe stomach pain spreading to your back, cannot keep fluids down, or notice yellowing of the skin or eyes.
Report any suspected side effect through the MHRA Yellow Card scheme. Call 111 for advice, or 999 if symptoms are severe.
Additional clinical cautions: Patients with diabetic retinopathy, active gallstones or gallbladder disease, or those experiencing severe vomiting/diarrhoea (which can lead to dehydration and acute kidney injury) should be monitored carefully.
Your four-week review is where the treatment gets adjusted to you. Without it, dose increases become guesswork.
We check whether you are losing weight at a safe rate. Around 0.5 kg to 1 kg a week is the target, and faster is not better.
We also check what you are losing. Rapid loss with low protein intake takes muscle with it, and that works against you long term.
Reviews catch problems early. Persistent vomiting, gallbladder symptoms or a blood pressure change all need action before your next pen.
Dose increases are a clinical decision, not an automatic step. Some patients do better held at 5 mg or 10 mg for months.
Patients who attend every review keep more of their weight off. Skipping them is the most common reason treatment stalls.
Prescribing decisions are made in the pharmacy by a prescriber who has met you, not by a remote online questionnaire.
We weigh you and take your blood pressure at every visit, so dose changes rest on real numbers rather than self-reported figures.
You see the same familiar faces each month on Hornsey Road, which makes spotting changes in your health far easier.
Consultations, reviews, needles and ongoing support are included in the pen price. You pay for the strength you are on.
If Mounjaro is wrong for you, we say so and suggest something better. We would rather decline than mismanage.
Blood pressure checks, B12, travel vaccines and other services sit alongside your weight management under one roof.
No courier delays and no waiting for deliveries. Your pen is handed to you across the counter.
Open six days a week, Chemitex Pharmacy is here to support your health. Call us, send an email, or visit our accessible pharmacy near Finsbury Park for all your healthcare needs.
Come and see why families in Islington have trusted Chemitex Pharmacy with their health for over 40 years. We're here for you.
Yes, parking is available right outside the pharmacy.
There's a bus stop just around the corner.
Trusted by generations of families in Islington.
Got some friendly and super quick travel vaccines here as I realised 5 days before travel. The pharmacist was soooo lovely and made the whole appointment easy. She was very informed and answered all my questions with confidence. Will be coming back for any future vaccine needs for sure as the price was much cheaper than the other ones in the area
I came into the chemist on Friday and I was very impressed by your colleague Fiona and how skilled she is with customers, particularly those who are vulnerable. She offered reassurance, was informative, and showed kindness and patience. She is an asset to your business.
Great little local pharmacy with wide selection and convenient hours, always has what I need in stock. Great customer service and advice from a lovely bubbly young woman who works on the till. Would recommend.
I needed to get a Covid and Flu vaccination together, before traveling, and Chemitex were able to give me a next day appointment and a good price.
The service was excellent and friendly.
I thoroughly recommend.
Inject it within four days of your usual day. If more than four days have passed, skip it and take the next scheduled dose.
Keep unused pens in the fridge between 2°C and 8°C (do not freeze). Once you start using the pen, you can store it at room temperature under 30°C for 30 days. After that, you must throw it away, even if there’s still medicine left. Putting it back in the fridge won’t help.
Yes. Carry it in hand luggage with a cool pack, bring your pharmacy label and ask us for a travel letter before you fly.
From Wegovy (weekly): Start 2.5 mg Mounjaro 7 days after your final Wegovy injection. From Saxenda (daily): Start 2.5 mg Mounjaro 24 to 48 hours after your final Saxenda injection (as Saxenda clears from the body much faster)
NHS England is gradually rolling out tirzepatide to specialist services and GP practices. Access is mainly for patients with the highest clinical need. This includes those with a BMI of 35–40+ and at least four weight-related health issues. If you don’t meet NHS eligibility or face long waits, our private clinic provides quick clinical assessments.
Expert tips from your local clinical team.
The most common travel vaccination mistakes are booking too late, skipping boosters, and forgetting the
Yes, in most cases. A drink or two will not stop your jabs from working.
Yes, most travel vaccines while breastfeeding are safe for you and your baby. Inactivated vaccines,
Visit a travel clinic before you go abroad. This helps customise your health plan for
Yes, older travellers can have travel vaccines, and most of them are just as safe
Yes, babies can have travel vaccinations, but the starting age is different for every vaccine.
Chemitex Pharmacy is located at 332 Hornsey Road, London, N7 7HE. It’s just a short walk from Holloway Road and Finsbury Park stations. You’ll also find it near the Emirates Stadium. Book online using the link below, or call our team directly.
