Ze339 Ze339 Ze339 brand herbal extracts are taken from the leaves of a unique variety (Petzell) of the butterbur ("Petasites hybridus") plant. Petzell is grown on GAP-managed farms in Europe. In Switzerland, South Korea and Brazil, tablets containing Ze339 brand herbal extracts are marketed under the brand name Tesalin. Ze339 is marketed in the US as Zarbee's Naturals Seasonal Relief. Ze339 is indicated for seasonal allergic rhinitis (hay fever). The ingredient has been evaluated in placebo-controlled, double-blind clinical studies. Ze339 was shown to be as effective as the antihistamines cetirizine and fexofenadine. Against desloratadine, an improved version of loratadine, Ze339 had
Double Allergic space. Powderfinger spent less money producing "Double Allergic" than on their previous works. Previously, the band had worked with Tony Cohen, whom Fanning stated was expensive due to his success in the industry. For "Double Allergic" the band chose Tim Whitten, a less well known producer, and because the band knew what they intended to do as they entered the studio they managed to spend less despite the improved sound. Middleton commented on Whitten's capabilities in the recording studio, saying "He's what a band looks for in a producer/engineer, because he's got his own ideas", but stating that Whitten would