Intramuscular (IM) Injections in London
Doctor-Led Medical Injectable Therapies at Marylebone Diagnostic Centre
Looking to Correct a Confirmed Deficiency, or Explore What's Appropriate for You
Looking to correct a confirmed vitamin deficiency or explore whether injectable treatment may be appropriate for you?
At Marylebone Diagnostic Centre, we provide safe, doctor-led Intramuscular (IM) Injections and Medical Injectable Therapies from our Central London clinic.
Unlike oral supplements, IM injections are administered directly into the muscle, allowing vitamins or prescribed substances to be absorbed without relying on the digestive system.
Every patient receives an individual medical assessment before treatment. Our priority is not simply to administer an injection, but to ensure that the treatment is appropriate, evidence-based and suited to your medical needs.
Evidence Before Treatment
At Marylebone Diagnostic Centre, patient safety is always our highest priority.
We do not routinely administer Vitamin B12 or Vitamin D3 injections without an appropriate medical assessment and, where indicated, recent blood test results confirming deficiency or showing that treatment is medically appropriate.
Patients may:
- Bring recent blood test results from another healthcare provider
- Arrange the required blood tests at MDC before treatment
Please note: A recent blood test (within the last 3 months) is required before your appointment. If you do not have one, please book the relevant blood test first. Patients attending without appropriate blood test results may be unable to receive treatment.
This approach helps avoid unnecessary supplementation, reduces the risk of overtreatment and ensures that treatment recommendations are based on medical evidence rather than symptoms alone.
Relevant blood tests: Vitamin B12 (Active) · Vitamin B12 (Total) · Vitamin D · Vitamins Profile
Choose Your Treatment
Each therapy below includes a medical assessment before treatment. Where blood testing is required, we can arrange this at MDC or review recent results from another provider.
Vitamin B12 supports:
- Normal red blood cell formation
- Healthy nervous system function
- DNA synthesis
- Normal energy metabolism
- Normal psychological function
- Reduction of tiredness and fatigue where deficiency is present
A recent Vitamin B12 blood test is normally required before treatment unless there is an existing confirmed diagnosis or another medically appropriate reason for treatment.
The dose and frequency of treatment are determined by a doctor following review of your symptoms, blood test results, medical history and the underlying cause of deficiency.
Long-term maintenance depends on the cause of the deficiency and ongoing medical review.
High-dose Vitamin D3 replacement may be suitable for patients with confirmed Vitamin D deficiency.
A recent Vitamin D blood test is required before treatment.
Before recommending treatment, clinical staff will review:
- Your Vitamin D result
- Relevant medical history
- Current medication
- Previous Vitamin D treatment
- Any relevant risk factors
- Whether additional blood tests are needed
The need for repeat treatment depends on follow-up blood results, your response to treatment and medical assessment.
Repeat injections are not provided automatically.
Glutathione is a naturally occurring antioxidant found throughout the body.
Some patients choose Glutathione injections as part of a wider health and wellbeing programme.
Routine blood testing is not usually required before treatment, although every patient receives a medical assessment to confirm that the injection is suitable.
The number and frequency of treatments will depend on your individual goals, medical history and response to treatment.
Which Injection Is Right for You?
Symptoms such as fatigue, low energy, muscle weakness, poor concentration, hair loss or reduced recovery can have many different causes, including:
- Vitamin B12 deficiency
- Vitamin D deficiency
- Iron deficiency
- Folate deficiency
- Thyroid disorders
- Hormonal imbalance
- Chronic illness
- Medication effects
- Lifestyle factors
Rather than simply treating symptoms, our doctors aim to identify the underlying cause wherever possible. Where appropriate, blood tests may be recommended before treatment so that any Medical Injectable Therapy is based on evidence rather than assumptions.
Why Choose an IM Injection?
- Administered directly into muscle for reliable absorption
- Avoids reliance on digestive absorption
- Suitable for some patients with absorption difficulties
- Short appointment time
- Medical assessment before treatment
- Administered by experienced healthcare professionals
- Treatment delivered in a safe clinical environment
Before, During & After Treatment
Before treatment, our medical team will:
- Review your medical history
- Review recent blood test results where required
- Check allergies and current medication
- Assess possible contraindications
- Explain the expected benefits
- Discuss possible risks and side effects
- Explain alternative options where appropriate
- Answer your questions
- Obtain informed consent
The injection is administered into an appropriate muscle, usually the upper arm or buttock. Most patients experience only brief discomfort or a mild stinging sensation.
Aftercare
Most patients can return to normal daily activities immediately after treatment. Temporary side effects may include:
- Mild soreness
- Bruising
- Redness
- Tenderness
- Swelling at the injection site
These effects usually settle within a few days. Please contact the clinic if you experience unexpected or persistent symptoms.
Seek urgent medical advice if you develop severe swelling, increasing redness, difficulty breathing, fever or any signs of a serious reaction.
Investigation Before Injection
Marylebone Diagnostic Centre is a doctor-led diagnostic clinic. We believe Medical Injectable Therapies should form part of a wider medical assessment rather than being offered routinely to everyone.
Our doctors consider whether further investigation may be appropriate before recommending treatment. Where necessary, we can arrange blood testing for:
- Vitamin B12
- Vitamin D
- Iron
- Ferritin
- Folate
- Thyroid function
- Full blood count
- Other relevant health markers
Our aim is to provide safe, evidence-based medical care that identifies the underlying cause whenever possible rather than simply treating symptoms.
Why Choose Marylebone Diagnostic Centre?
- Doctor-led medical assessment
- Experienced healthcare professionals
- Blood testing and treatment in one location
- Evidence-based medical care
- Personalised treatment recommendations
- Safe clinical environment
- Central London location
- Flexible appointments
- Clear aftercare guidance
- Focus on identifying the underlying cause
Frequently Asked Questions
Book Your Medical Injectable Therapy in Central London
Whether you have a confirmed vitamin deficiency, have been advised to receive injectable treatment or would like a medical assessment before treatment, our experienced team is here to help. If you're unsure which treatment is appropriate, we can arrange the necessary blood tests and recommend the most suitable option based on your medical history and results.
Book Your IM Injection Today
