Clozapine oro-dispersible tablets

Warning

Criteria

Patients meeting the following criteria are considered eligible for treatment with clozapine oro-dispersible:

  1. As an alternative for patients already established on clozapine suspension.
  2. To support establishment of clozapine treatment for patients reluctant to swallow tablets.
  3. To aid compliance monitoring in patients with a known history of oral non-compliance.
  4. Patients with a diagnosed swallowing difficulty who cannot swallow tablets.
  5. A non-formulary request has been submitted to and approved by the Prescribing Management Group (PMG(MH).

Note: the standard tablets are the preparation of choice. Patients, where possible, should be switched to standard tablets at the earliest opportunity.

Procedure

If use of clozapine oro-dispersible tablets is approved the following process must be completed before clozapine oro-dispersible can be prescribed:

  1. The consultant psychiatrist, treatment location and patient must be registered with ZTAS
  2. Confirmation of this registration must be received by pharmacy and the consultant psychiatrist before clozapine oro-dispersible is prescribed.
  3. Inpatient- new clozapine initiation: Prescribe the appropriate titration regime on HEPMA and inform Leverndale pharmacy via telephone or email. If a paper titration form is being used then this should be emailed to Leverndale Pharmacy (Leverndale.Pharmacy@ggc.scot.nhs.uk) and prescribed on HEPMA as ‘clozapine loading regime- as charted’.
  4. Inpatient- formulation change: Prescribe appropriately on HEPMA and inform Leverndale Pharmacy of the change via telephone or email.
  5. For outpatients: Prescribe appropriately on a clozapine outpatient prescription form and email the prescription to Leverndale Pharmacy (Leverndale.Pharmacy@ggc.scot.nhs.uk) This should be a new entry on the prescription form and NOT oro-dispersible added to existing clozapine.
  6. Amend the clozapine warning on EMIS to highlight the use of oro-dispersible tablets.

Cost comparison

Clozapine Preparation

Cost per unit dose (£)

25mg standard tablets

0.05

100mg standard tablets

0.19

12.5mg oro-dispersible tablets

0.12

25mg oro-dispersible tablets

0.23

50mg oro-dispersible tablets

0.44

100mg oro-dispersible tablets

0.97

200mg oro-dispersible tablets

1.92

50mg/ml suspension

0.40

Editorial Information

Last reviewed: 29/11/2024

Next review date: 01/10/2027

Author(s): PMG-MH.

Version: 1

Author email(s): PrescribingManagementGroup.MentalHealth@ggc.scot.nhs.uk.

Approved By: PMG-MH

Reviewer name(s): Lead Clinical Pharmacist, Clinical Effectiveness Pharmacist.