Greater Glasgow and Clyde Medicines

Medicines Update

For all healthcare professionals across NHSGGC both in primary care and the acute sector.

Please note, Medicines Update blogs are correct at the time of publication.

Medicines Update blogs remain on the website for 4 years. If you would like a copy of a blog published more than 4 years ago, please contact  medicines.update@ggc.scot.nhs.uk.

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06/09/2023 announcement

Accessing GGC Clinical Guidelines via Medicines Update blogs and the Adult Therapeutics Handbook 

GGC Clinical Guidelines have migrated to the Right Decisions for Health and Care platform. As a result of the migration, direct links to GGC guidelines within Medicines Update blogs (and the Adult Therapeutics Handbook, GGC Medicines App) currently go to the homepage and not individual guidelines. This change was out with our control. 
Please note, there is a message on the homepage highlighting intermittent issues with the search function, therefore, if you cannot find a guideline via the search box, select the relevant category from the homepage or if the guideline still can't be found, contact clinical.guidelines@ggc.scot.nhs.uk
An update will be provided in due course.

Clozapine supply and missed doses in acute

Posted: Friday, May 17, 2024

Category - Medicines Update

  • Acute hospital sites in NHSGGC do not stock clozapine.
  • Clozapine is generally supplied from Leverndale Pharmacy.
  • Leverndale Pharmacy should be contacted (including out of hours) when patients on clozapine are admitted to an acute hospital to inform of admission, confirm dose and arrange supply (if required). Leverndale Pharmacy should also be contacted when patients are discharged.
  • If a patient misses clozapine for more than 48 hours, it must be re-titrated to their original dose on advice of the mental health (MH) team.
Read More...

Clozapine and risk of life-threatening constipation

Posted: Friday, May 17, 2024

Category - Medicines Update

  • Constipation is a very common adverse effect of clozapine treatment
  • Mortality rates associated with complications from clozapine-induced constipation are higher than the risk of fatal agranulocytosis
  • The risk of clozapine-induced constipation is highest in the first few months of treatment
  • If symptoms suggestive of obstruction emerge, clozapine should be stopped and referral made to mental health services (MHS) for advice
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Clozapine and cytotoxic treatment

Posted: Friday, May 17, 2024

Category - Medicines Update

  • The side effect profile of clozapine means it is subject to mandatory processes and monitoring which are intended to ensure patient safety.
  • Concurrent use of medications known to cause neutropenia are contraindicated with clozapine.
  • In the event of an individual prescribed clozapine requiring cytotoxic treatment, a special treatment plan must be established to manage the contraindicated combination and allow clozapine treatment to continue.
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Updated Valproate Regulatory Measures

Posted: Thursday, May 16, 2024

Category - Medicines Update

An additional regulatory change in January 2024 for oral valproate medicines, means that:

  • Valproate must not be started in new patients (male or female) younger than 55 years, unless two specialists independently consider and document that there is no other effective or tolerated treatment, or there are compelling reasons that the reproductive risks do not apply.
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Key Medicine Shortages – April 2024

Posted: Thursday, May 2, 2024

Category - Medicines Update

Includes:

Diazepam 10mg/2.5ml rectal solution tubes, Guanfacine (Intuniv®) 2mg and 3mg modified release tablets, Fiasp® (insulin aspart) FlexTouch 100units/ml solution for injection 3ml pre-filled pens, Levemir InnoLet® (insulin detemir) 100units/ml solution for injection pre-filled disposable devices, Insulatard InnoLet® (insulin isophane human) 100units/ml suspension for injection 3ml pre-filled disposable devices, Monomil® XL (isosorbide mononitrate) 60mg modified release tablets, Methadone 5mg tablets, Pabrinex® IV and IM injections, and Salbutamol 2.5mg/2.5ml nebules

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