What is VIRALEZE™ Barrier Nasal Spray?

VIRALEZE™ is a barrier nasal spray that creates a moisturising and protective barrier in your nose. This barrier contains astodrimer sodium, which physically traps cold and respiratory viruses.

Shop VIRALEZE™ nasal spray

When can I use VIRALEZE™ Barrier Nasal Spray?

VIRALEZE™ Barrier Nasal Spray can be used on public transport, at your workplace, or other crowded places where you may be exposed to cold and respiratory viruses, and where nasal passages may become dry and irritated. You can take VIRALEZE™ with you wherever you go, and it doesn't need to be refrigerated.

How do I use VIRALEZE™ Barrier Nasal Spray?

VIRALEZE™ is a simple to use nasal spray suitable for adults and children aged 12 years and over. Simply apply one spray in each nostril while breathing in gently and you're ready to go. Make sure to wash your hands before and after use and for more detailed instructions, read the leaflet included in the product pack.

Frequently asked questions

  • How much is the VIRALEZE™ Barrier Nasal Spray?

    £9.99 and each bottle has approximately 80 sprays.

  • Who can use VIRALEZE™ Barrier Nasal Spray?

    • Adults
    • Children 12 years and over
  • Can I use this barrier nasal spray if I’m pregnant or breastfeeding?

    Speak to your doctor before using VIRALEZE™ if you’re pregnant, planning on becoming pregnant, breastfeeding or planning to breastfeed.

    • How does VIRALEZE™ Barrier Nasal Spray work?

      Your nasal cavity is the primary site where cold/respiratory virus infection becomes established. VIRALEZE™ contains astodrimer sodium (SPL7013) which has been shown in laboratory to physically trap cold/respiratory viruses.*

      “Spike” proteins on the surface of these viruses that meet VIRALEZE™ are trapped by astodrimer sodium. This interaction is “virucidal”, meaning that the virus can be trapped and can no longer infect cells. This provides a physical barrier to respiratory viruses. In the nasal cavity, trapped viruses would be cleared naturally through the nasal mucus.

    • What are the ingredients?

      VIRALEZE™ contains astodrimer sodium (also known as SPL7013), a compound that has been shown to physically trap cold/respiratory viruses.

      VIRALEZE™ Barrier Nasal Spray creates a moisturising and protective barrier containing astodrimer sodium on the inside surface of your nose that physically traps cold/respiratory viruses. Viruses are naturally removed in the nasal mucus. 

      Astodrimer sodium is included in other products approved in >40 countries, which are available for sale in UK, Europe, Japan, South east Asia, Australia, and New Zealand.

    • Does nasal spray have side effects?

      Astodrimer sodium in VIRALEZE™ is a large molecule that acts locally at site of application and does not enter the bloodstream. Astodrimer sodium has been marketed for more than 7 years in other products. If you experience nasal irritation, a nosebleed, or nasal congestion, stop using the product and speak to a healthcare professional.

    • How many times a day can I use it?

      You can use one spray in each nostril up to 4 times a day. If you blow your nose after spraying VIRALEZE™, you will need to reapply.

    • Can I use VIRALEZE™ with a hay fever or allergy nasal spray?

      If you do need to use an allergy nasal spray and also wish to use VIRALEZE™, you should use the allergy nasal spray first, then wait 2-4 hours before using VIRALEZE™.


    * Gallay et al., Top Antiv Med, 2022, 30(1s), 478 Paull JRA et al., Antivir Res, 2021, 191, 105089 Paull JRA et al., Viruses, 2021, 13, 1656.
    See https://www.viraleze.co.uk for additional information.
    Contains astodrimer sodium.
    This product is a medical device. 
    Always read the label. Ask our pharmacist for advice.