In a drug repurposing project, we have shown that the longitudinal (T1) and transverse (T2) relaxation experiments and the STD NMR spectroscopy detected the JNK3 binding of azelastine, which has an original indication for anti-allergy and anti-inflammation effects and proven that azelastine binds to ATP binding pocket of JNK3 via competition STD experiment with AMP-PNP [47]. This evidence concerns the gene MAPK10 and Allergy.