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Summary of Sialanar's® safety profile

Sialanar® is an anticholinergic medicine, therefore is associated with typical class effects of anticholinergics. The side effects associated with Sialanar® may be dose dependent and difficult to assess in a disabled child.

Please see the guidance below regarding dose titration and adverse event management:

• In the event of a known anticholinergic adverse reaction occurring when the dose is increased, the dose should be reduced to the previous lower dose and the event monitored.

• The carer should stop treatment and seek advice from the prescriber in the event of:

  • Constipation
  • Urinary retention
  • Pneumonia
  • Allergic reaction
  • Pyrexia
  • Very hot weather
  • Changes in behaviour
After evaluating the event, the prescriber will decide if treatment should remain stopped or if this should continue at a lower dose.

• Younger children may be more susceptible to adverse reactions and this should be kept in mind when any dose adjustments are carried out.

Following the dose titration period, the child’s sialorrhoea should be monitored, in conjunction with the carer at no longer than 3 monthly intervals, to assess changes in efficacy and/or tolerability over time, and the dose adjusted accordingly.
 
Continued use of Sialanar has been evaluated in children and adolescents aged 3 years and older for up to 9 months. With long-term continued use, Sialanar should be evaluated on a regular basis e.g 3 - 6 monthly.

For comprehensive information on Sialanar, please refer to the SmPC.1

Resources

Visit the resources section to find product support materials for patients/carers and educational resources for healthcare professionals.

References

  1. Sialanar® SmPC (August 2026) https://www.medicines.org.uk/emc/product/2301 
  2. Parr JR, Todhunter E, Pennington L, et al. Drooling Reduction Intervention randomised trial (DRI): comparing the efficacy and acceptability of hyoscine patches and glycopyrronium liquid on drooling in children with neurodisability. Arch Dis Child 2017;0: 1-6. DOI: 10. 1136/archdischild-2017-313763
  3. Reid S M, et al.; Anticholinergic medications for reducing drooling in children with developmental disability. Developmental Medicine & Child Neurology, 2019 Mac Keith Press. DOI: 10.111/dmcn.14350

Accessed August 2026

UK-SIA-26-0027 | August 2026

Adverse Event Reporting Information

UK: Adverse events should be reported. Reporting forms and information can be found at: www.mhra.gov.uk/yellowcard

Adverse events should also be reported to Proveca Limited. Phone: +44 333 200 1866 E-Mail: medinfo@proveca.com

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