# K201734: AllerBlock Junior

- Pathway: 510(k) (Traditional)
- Applicant: Nasaleze International, Ltd.
- Decided: Mar 26, 2021 after 274 days
- Product code: NUP (Cream, Nasal, Topical, Mechanical Allergen Particle Barrier)
- Device class: 2
- Regulation: 21 CFR 880.5045
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 7 generations back to K002338 (2001). 9 ancestors in all.
No later device cites it as a predicate yet.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K170848: Alzair Allergy Blocker, Nasaleze International, Ltd. (2017) Summary page 4.

## Indications for use
AllerBlock Junior is intended for use in adults and children (8 years or older) to treat hay fever and allergy sufferers by promoting alleviation of mild allergic symptoms (i.e., mild nasal irritation including itchy, runny, or congested nasal passages) triggered by the inhalation of various airborne allergens including indoor and outdoor environmental pollens, house dust, animal hairs, and dust mites. Application of AllerBlock Junior produces a mucous-like gel barrier that evenly coats the nasal membranes and acts to block inhaled allergens within the nasal cavity.

Source page: https://510kreport.com/device/K201734
Methodology: https://510kreport.com/methodology