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Medicines recallMHRA

Paliperidone Mercury Pharma prolonged-release suspension recalled over a packaging defect

Packaging or device defectHigh riskClass 2

Mercury Pharmaceuticals Ltd is recalling remaining stock of paliperidone pre-filled syringes as a precautionary measure due to Good Manufacturing Practice (GMP) deficiencies cited during a recent inspection at the finished product manufacturing site.

Check your product

Only products that match these details are covered. Have your pack in front of you.

95 identifiers listed for this notice.

  • Paliperidone Mercury Pharma prolonged-release suspension 1s

    Batch codePrinted on the pack, often next to the date mark. It may start with L or LOT.
    • 4400353
    • 4301747
    • 4400797
    • 4401269
    • 4401271
    • 4301534
    • 4301945
    • 4301883
    • 4400979
    • 4400711
    • 4401437
    • 4500150R
    • 4500154R
    • 4500171R
    • 4500176
    • 4500443R
    • 4501272
    • 4301518
    • 4301550
    • 4301970
    • 4400390
    • 4400737
    • 4401361
    • 4500100
    • 4500280
    • 4500675
    • 4500750
    • 4500825
    • 4500894
    • 4501516
    • 4301538
    • 4301930
    • 4301817
    • 4401337
    • 4401338
    • 4401277
    • 4400150
    • 4400169
    • 4500200
    • 4500197R
    • 4500596
    • 4500689
    • 4500709R
    • 4501340
    • 4501371
    ExpiryOn the carton, blister or label.
    • 30/06/2026
    • 30/09/2026
    • 31/10/2026
    • 30/06/2027
    • 31/12/2027
    • 31/01/2028
    • 31/03/2028
    • 31/08/2028
    • 31/05/2028
    • 30/09/2028
    • 31/12/2026
    • 30/04/2028
    • 31/07/2028
    First distributedOn the product, its label or its packaging.
    • 19/03/2024
    • 18/12/2023
    • 24/07/2024
    • 04/02/2025
    • 13/02/2025
    • 01/11/2023
    • 26/01/2024
    • 11/01/2024
    • 05/12/2024
    • 27/02/2025
    • 14/07/2025
    • 24/07/2025
    • 01/08/2025
    • Quarantined at wholesaler
    • 11/09/2025
    • 08/11/2023
    • 08/12/2023
    • 25/01/2024
    • 21/03/2024
    • 06/12/2024
    • 29/04/2025
    • 26/06/2025
    • 28/07/2025
    • 20/08/2025
    • 28/10/2025
    • 26/10/2023
    • 01/12/2023
    • 09/12/2024
    • 11/04/2024
    • 04/06/2024
    • 23/05/2025
    • 13/08/2025
    • 15/07/2025
    • 05/08/2025
    • 30/10/2025
    • 06/11/2025
    • 09/12/2025

What to do now

Some packs of Paliperidone Mercury Pharma prolonged-release suspension have a defect that could affect how the medicine is given.

  1. Keep taking your medicine unless a healthcare professional tells you otherwise.
  2. Check the batch number and expiry date on your pack against the list on this page.
  3. If it matches, your pharmacist can swap it or arrange an alternative.
  4. Report suspected side effects to the MHRA Yellow Card scheme.

Why it matters. A faulty cap, seal, syringe or inhaler can mean a missed or wrong dose, or contamination of the product.

Symptoms and when to get help

Look out for

  • a side effect you have not had before
  • your condition not being controlled as well as usual

Get help urgently

  • signs of a severe allergic reaction, such as swelling of the face or throat or difficulty breathing — call 999
  • if you feel unwell and are worried, speak to a pharmacist, your GP or NHS 111

This is general information based on NHS public guidance, not medical advice. In an emergency call 999. For urgent advice use NHS 111 (NHS 24 on 111 in Scotland) or, in Northern Ireland, your GP or out-of-hours service.

Replacements and prescriptions

The MHRA notice tells pharmacies and healthcare professionals what to do. Patients should keep taking their medicine and ask a pharmacist before stopping.

An affected pack bought over the counter can be returned to where you bought it.

From the official notice

Published by the Medicines and Healthcare products Regulatory Agency (EL(26)A/01). Quoted as issued.

Summary

Mercury Pharmaceuticals Ltd is recalling remaining stock of paliperidone pre-filled syringes as a precautionary measure due to Good Manufacturing Practice (GMP) deficiencies cited during a recent inspection at the finished product manufacturing site.

The risk

DMRC reference number DMRC-37923982 Marketing Authorisation Holder

Advice for healthcare professionals

Stop supplying the above batches immediately. Quarantine all stock and return it to your supplier using your supplier’s approved process.

Where appropriate, healthcare professionals involved in dispensing practices (pharmacy teams, homecare teams etc), should contact patients to advise them to contact their prescriber for a review to ensure that an alternative product is available, without delaying their treatment.

Where Paliperidone Mercury Pharma prolonged-release injections are unavailable, clinicians should ensure continuity of treatment and consider appropriate alternative licensed treatment options. These may include an alternative paliperidone palmitate product, another long-acting injectable antipsychotic, or, where clinically appropriate, an oral antipsychotic (including oral paliperidone or risperidone), in line with local formularies, NICE guidance, and individual patient needs. For some patients, oral treatment may be considered as a temporary bridging option until long-acting injectable therapy can be resumed. Switching between treatments should be planned to avoid missed doses and minimise the risk of relapse, with appropriate clinical monitoring for efficacy and tolerability, particularly during the initial period following a change in treatment.

No specific safety concerns have been identified with the affected batches, and a review of the company safety database has not identified any increase in adverse events associated with this issue.

This recall is precautionary and relates to manufacturing standards rather than a confirmed problem with the medicine itself.

Patients are advised to contact their prescriber as soon as possible to arrange treatment without interruption. Patients should continue to take the medication until they have arranged alternative treatment.

Mercury Pharmaceuticals Ltd has not identified any adverse events related to this issue. A review of the company’s safety data has not identified any safety concerns associated with the affected batches. Patients who have already received injections from the affected batches do not require any additional monitoring beyond routine clinical care unless they have concerns or experience new symptoms.

Patients who experience adverse reactions or have any questions about their medication should seek medical attention. Any suspected adverse reactions should also be reported via the MHRA Yellow Card scheme .

Advice for patients

This recall is precautionary and relates to manufacturing standards rather than a confirmed problem with the medicine itself.

Patients are advised to contact their prescriber as soon as possible to arrange treatment without interruption. Patients should continue to take the medication until they have arranged alternative treatment.

Mercury Pharmaceuticals Ltd has not identified any adverse events related to this issue. A review of the company’s safety data has not identified any safety concerns associated with the affected batches. Patients who have already received injections from the affected batches do not require any additional monitoring beyond routine clinical care unless they have concerns or experience new symptoms.

Patients who experience adverse reactions or have any questions about their medication should seek medical attention. Any suspected adverse reactions should also be reported via the MHRA Yellow Card scheme .

Open the MHRA notice

Questions

Why has Paliperidone Mercury Pharma prolonged-release suspension been recalled?

Some packs of Paliperidone Mercury Pharma prolonged-release suspension have a defect that could affect how the medicine is given. A faulty cap, seal, syringe or inhaler can mean a missed or wrong dose, or contamination of the product.

How do I know if my medicine is affected?

Compare the batch code, expiry and date code on your pack with the details listed under “Check your product” on this page. Only items that match are covered by the notice.

What should I do now?

Keep taking your medicine unless a healthcare professional tells you otherwise. Check the batch number and expiry date on your pack against the list on this page.

Do I need a new prescription?

The MHRA notice tells pharmacies and healthcare professionals what to do. Patients should keep taking their medicine and ask a pharmacist before stopping. An affected pack bought over the counter can be returned to where you bought it.

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