ALLERGY BUNDLE RANGE: The Piri product range includes Piriton,, Pirinase and Pirinatural, with a range of nasal sprays including Otrizine, Pirinase and Pirnatural. Allergy Relief Antihistamine Tablets 60 & Pirinase Hayfever Once Daily Nasal Spray Bundle - Hayfever Tablets with Cetirizine - Hayfever Nasal Spray - Allergy Tablet & Sinus Relief.