Can I take tirzepatide? What the eligibility criteria actually mean

You meet the BMI number, but that's the beginning, not the end

Picture this: you've checked the BMI threshold on the Mounjaro BMI guide and you clear it. You might reasonably assume that's the green light. It's actually the opening question, not the answer.

The UK licence for tirzepatide covers adults with a BMI of 30 or above, or a BMI of 27 to 29.9 alongside at least one weight-related comorbidity. That second route matters to a lot of people. Conditions that count include type 2 diabetes, hypertension, dyslipidaemia, obstructive sleep apnoea, and cardiovascular disease, among others. So if your BMI sits at 28 and your GP has flagged high blood pressure, the licence may well cover you, whereas a BMI of 28 with no qualifying condition would put you outside it. The NHS tirzepatide medicines page sets this out clearly.

The ethnic-background adjustment is equally important and frequently overlooked. For people of South Asian, Chinese, Middle Eastern, Black African or African-Caribbean heritage, the relevant thresholds are 2.5 kg/m² lower, so 27.5 instead of 30, and 24.5 instead of 27. This reflects UK guidance on the relationship between body composition and metabolic risk at lower BMIs in these groups.

None of this produces an automatic yes or no. A prescriber reads the whole picture (current medications, relevant history, the reason you're seeking treatment) before deciding whether tirzepatide is appropriate for you specifically.

Situations that can put tirzepatide off the table

Knowing who can take tirzepatide also means knowing who should not. Our page on who cannot take tirzepatide covers this in detail, but the key points are worth stating plainly here.

Tirzepatide is not recommended during pregnancy, while breastfeeding, or if you are actively trying to conceive. It is not licensed for anyone under 18. A personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia type 2 (MEN2) is a contraindication. A history of pancreatitis, or certain serious gastrointestinal conditions, requires careful prescriber discussion before treatment begins.

Some medications interact with tirzepatide in ways a prescriber needs to weigh up. Women using oral contraceptives need to know that tirzepatide can reduce the pill's absorption, NHS guidance recommends adding a non-oral contraceptive method for the first four weeks of treatment and for four weeks after each dose increase. This is a practical point, not a reason to avoid treatment, but it does need a conversation.

The prescriber also looks at whether a previous attempt at tirzepatide produced an adequate response. NICE's appraisal (TA1026) recommends that continuing treatment is reviewed if weight loss falls below 5% after six months at the highest tolerated dose. That clinical checkpoint applies in private care too.

What the consultation actually involves, and why timing matters

At nume's Mounjaro service, the consultation is the mechanism by which a GPhC-registered Independent Prescriber works through everything above with you. There is no algorithm making that call. Your answers, your health history, your current medications, a real clinician reads them the same day.

The process also includes photo-ID verification and live weight confirmation by video. This isn't bureaucracy for its own sake. Tirzepatide's dosing is calibrated to body weight and individual response; accurate baseline data is part of safe prescribing. For people transferring from another provider or requesting a dose increase, evidence of current treatment or recent weight progress is required before the prescription moves forward.

Repeat prescriptions follow the same pattern. Unlike a subscription that auto-renews, every reorder at our pharmacy triggers a fresh clinical review. That matters because suitability can change, new medications, a change in health status, or a planned procedure all affect whether continuing is appropriate. If you're curious about the cost side before booking, our Mounjaro cost page covers what private treatment pricing includes and why a single transparent price is the cleaner model.

Timing your injection: a separate but related question

Once a prescriber confirms you can take tirzepatide and treatment begins, a common follow-up is what to do if the weekly schedule doesn't quite line up. Life happens. For practical guidance on the windows around your injection day, our pages on taking tirzepatide a day early and on a six-day interval address those questions directly. The short version: small adjustments are generally manageable, but your prescriber and the Patient Information Leaflet are the right references for your specific dose and situation. Dosing decisions belong with your clinical team, not a forum thread.

If you want to explore all the treatment options available through a regulated UK pharmacy, the weight-loss treatments overview is a good place to start.