Do You Need to See Your GP for Weight Loss Injections?
Do You Need to See Your GP for Weight Loss Injections?
If you are considering weight loss injections, you may be wondering whether you need to make an appointment with your GP before you can start treatment.
The short answer is no, not necessarily.
If you choose to access weight loss treatment privately, you can usually complete your assessment directly with the healthcare provider. You do not normally need to see your NHS GP first or obtain their permission.
However, weight loss injections are prescription-only medicines. This means a qualified healthcare professional must assess whether treatment is appropriate for you before a prescription can be issued.
Can I Get Weight Loss Injections Without Seeing My GP?
Yes.
Private weight management clinics can assess patients independently of their NHS GP, including through an online consultation where this is considered appropriate.
You will normally be asked to provide information such as:
- Your height and weight
- Your medical history
- Any current medications
- Allergies
- Relevant health conditions
- Previous weight loss treatments
The clinician then reviews your information and decides whether treatment is suitable.
The GMC allows medicines to be prescribed following remote consultations, provided the clinician has enough information to assess the patient and prescribe safely.
Do I Need My GP's Permission?
No.
If you are receiving weight loss treatment privately, your NHS GP does not normally need to approve the prescription.
The healthcare professional prescribing your treatment is responsible for deciding whether it is safe and appropriate for you.
There may, however, be circumstances where the private clinician needs additional medical information before they can prescribe.
For example, they may ask for your permission to contact your GP if they need to confirm something from your medical history.
GMC guidance states that clinicians who are not a patient's regular medical professional should ask for consent to contact their GP when further information or confirmation is required.
Why Does an Online Clinic Ask for My GP Details?
Providing GP details does not mean that you need to arrange an appointment with your GP.
Your private provider may request them so that relevant information can be obtained or shared where necessary.
This helps ensure that clinicians have an accurate picture of your health and any medicines you are already taking.
It also allows important information about your private treatment to be shared with your regular healthcare professionals where appropriate.
What Checks Are Needed Before Weight Loss Injections Can Be Prescribed?
Weight loss injections should not simply be supplied because someone requests them online.
An appropriate clinical assessment must take place first.
For example, NICE guidance for tirzepatide says an initial assessment can include:
- Medical history
- Current medications
- Weight-related health conditions
- Height
- Weight
- BMI
- Other assessments where clinically indicated
The exact information required will depend on the treatment and the individual patient.
Can the Whole Assessment Be Done Online?
In many cases, yes.
Private weight management services can use remote consultations where this provides enough information for the clinician to make a safe decision.
However, completing an online questionnaire does not guarantee that medication will be prescribed.
The clinician may:
- Approve treatment
- Request further information
- Ask for additional verification
- Recommend a different option
- Decide that treatment is not appropriate
The prescribing decision must always be made by the healthcare professional responsible for your care.
What If I Am Not Currently Registered With a GP?
Not being registered with a GP does not automatically prevent a private clinician from assessing you.
GMC guidance says that where someone does not have a regular prescriber, the clinician must be able to justify prescribing without that information and be satisfied that it is safe to do so.
If the clinician believes information from your medical records is necessary to prescribe safely, treatment may need to wait until that information can be obtained.
What If I Want Weight Loss Injections Through the NHS?
The process is different if you want treatment through the NHS rather than privately.
NHS access depends on the medicine, your clinical circumstances, eligibility requirements and the services available where you live.
In Northern Ireland, a new Regional Obesity Management Service was announced in 2026. Its first phase is focused on people with the highest clinical need, with access to weight loss medication where clinically appropriate and in line with NICE guidance.
Interestingly, the Department of Health has also confirmed that some routes into the new Northern Ireland service will include self-referral, meaning a GP referral will not always be required.
Is It Safe to Get Weight Loss Injections Online?
It can be, provided you use a legitimate healthcare provider and go through a proper clinical assessment.
The MHRA warns against obtaining GLP-1 weight loss medicines through unregulated sellers, including social media accounts and beauty salons.
These medicines should only be prescribed by an appropriate healthcare professional and supplied through legitimate pharmacy channels.
Be cautious of any website offering prescription weight loss medication:
- Without a medical assessment
- Without asking about your medical history
- Without a qualified prescriber
- Without explaining who supplies the medication
- Without appropriate patient support
If a website appears willing to sell prescription medication with virtually no checks, that should be a warning sign.
Starting Weight Loss Treatment With Keltoi
At Keltoi, you can complete your initial weight management assessment online.
You do not need to book a separate appointment with your GP before starting your Keltoi assessment.
You provide the information required for our clinical team to assess you, and your submission is then reviewed by a UK prescriber.
If further information is required before a prescribing decision can be made, we will let you know.
If treatment is considered appropriate, the next steps can then be arranged without requiring you to make a separate GP appointment first.
Treatment is always subject to clinical assessment and prescription.
Frequently Asked Questions
Do I need a GP referral for private weight loss injections?
Usually, no. You can generally approach a private weight management provider directly and complete their assessment.
Do I need to physically see a doctor?
Not necessarily. An assessment may be carried out remotely where the prescribing clinician considers this safe and appropriate.
Can an online clinic prescribe weight loss injections?
Yes, provided an appropriate assessment has taken place and a qualified prescriber is satisfied that treatment is appropriate.
Do I need my GP to agree to the prescription?
No. A private prescriber makes their own clinical decision. They may, however, need information from your GP in some circumstances.
What happens if the clinician needs more information?
The clinic may contact you for additional information or, with your consent, request relevant information from your GP before making a decision.
Can I buy weight loss injections without a prescription?
No. Medicines such as GLP-1 weight loss treatments are prescription-only medicines in the UK and should only be supplied following an appropriate healthcare consultation.
The Bottom Line
You do not normally need to see your GP before applying for weight loss injections through a private online clinic.
You also do not generally need your GP's permission.
What you do need is a proper clinical assessment by a qualified healthcare professional who can decide whether treatment is safe and suitable for you.
For many people, that means the first step can be completing an online assessment rather than trying to arrange a GP appointment.
Ready to find out whether treatment may be suitable for you? Start your Keltoi online assessment today.