Greater Glasgow and Clyde Medicines

Medicines Update

GGC Medicines Update is a series of blogs with important medicines related messages relevant to all healthcare professionals across GGC.

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 ggc.medicines.update@nhs.scot

Click here for a promotional poster on Medicines Update and here for an animation on the Communications subcommittee of ADTC responsible for the development of Medicines Update.

If you would like to contribute to Medicines Update, click here for a guide to blog writing. When you email the committee to discuss writing a blog, you will be sent a checklist to complete prior to submitting the blog for review.

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.
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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.
Read More...