Prevalin Allergy - 140 sprays

20 ML

Pharmacy product

In order to buy non-prescription medicines you must be a registered user of our site as we are obliged to record your transaction history. We also ask that you complete our questionnaire so our pharmacy team can check that this product is suitable for you to buy.

Will you be claiming the VAT back?

Disabled or chronically sick people can claim VAT relief on purchases for personal or domestic use that are applicable to their disability or sickness.

Maximum quantity reached

Add to basket
Check store stock

You must be at least 18 years old to purchase this product. By adding this item to your basket you confirm you are 18 years or over.

Collect 48 Boots Advantage Card points with this purchase

Arrow Product details

Prevalin Allergy  - 140 sprays

Acts 5 x faster than hay fever tablets




  • Drug free
  • Non-drowsy
  • Clinically proven efficacy

140 sprays

Good safety profile.

Drug free solution.

Steroid & antihistamine free.

Prevalin™ allergy is clinically proven to provide fast and effective allergy relief against:
  • Sneezing
  • Runny nose
  • Nasal congestion
  • Itchy/watery eyes

Prevalin™ allergy both treats and protects by:
  • Defusing pollen rapidly
  • Supporting fast clearance
  • of allergens
  • Forming a microgel barrier to
  • prevent against further irritation

Prevalin™ allergy contains a unique Thixotropic formula which when shaken becomes fluid for easy dispersion, then settles back onto the nasal lining as a gel to block allergen contact.

Thixotropic Formula
Gel at rest, liquid when shaken.

Suitable for

Adults and children over 12 years. Suitable for athletes, pregnant & breast feeding women.

How to use

Read package insert.

Use only as directed.

Use Prevalin™ allergy as soon as you feel the first symptoms, before
the allergic reaction has fully developed.


Prevalin™ allergy gets to work in 3 minutes. Use at the start of an allergic reaction 2 - 3 times a day (works up to 6 hours).


Shake vigorously 4 times upright & 4 times upside down before use.


2. Prime the pump before initial use.


3. Apply 1 to 2 sprays into each nostril.


Hazards and Cautions

Keep out of the sight and reach of children.


Store in a cool dry place.

Do not store above 27°C (80,6°F).

Do not refrigerate or freeze


Bentonite veegum, xanthan gum, glycerol monostearate, potassium phosphate, dipotassium phosphate, glycerin, sesame oil, water, spearmint oil, preservatives. more less

Delivery options

Order & Collect
€2.50 or free if you spend €25 or more from your choice of 85 Boots stores

Standard Delivery
€5 or free when you spend €50 or more

For more information see our delivery help or view our returns policy.

Prevalin Allergy - 140 doses 2.6 5 36 36
Good results from the onset This seems to work well in conjunction with antihistamine tablets. The effects only seem to last a couple of hours, rather than the advertised 6, but the fact that it doesn't contain a steroid is a definite plus. Seems relatively pricey, but again, being a more natural product, I think worth it. Would recommend to others. April 2, 2012
works well I suffer from hayfever and sometimes my pet cats hair can really aggravate my allergies causing itchy puffy eyes. I'm beginning to find tablets don't work as quickly and efficiently as they used to, stronger ones makes me drowsy and eye drops make my eyes go red n watery. Prevalin really got to work fast, after a few minutes my nose cleared and the gritty feeling in my eyes began to ease off. Within half an hour it was as if I had no allergies at all! You're supposed to re-use it every few hours but I find one dose sees me through the day making it good value for money too! It has a pleasant minty taste too unlike most nasal sprays which taste salty or chemically. Would definitely recommend and buy again. April 8, 2013
Useless I suffer terrible hayfever and was recommended this nasal spray..... when I used it it actually made me so much worse...when I felt the hayfever starting I thought I would give prevalin a try, well 2 squirts up each nostril and straight away my nose was constantly running like a tap you can't switch off and sneezing more than I normally do with Hayfever....I feel I am probably allergic to this stuff quite ironic really ..... April 13, 2013
  • 2017-01-24 T07:59:46.787-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_36, tr_36
  • loc_en_US, sid_1209123, prod, sort_default
2 3 4 5 ... 12 next>>
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • LOCAL, getReviews, 2ms
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;