For me, loratadine was ineffective, and I can't distinguish cetirizine and fexofenadine - both are maybe 50-60% effective with no notable side effects, and alle

For me, loratadine was ineffective, and I can't distinguish cetirizine and fexofenadine - both are maybe 50-60% effective with no notable side effects, and allergy season means extra fatigue no matter what. Cetirizine does have the shortest half life.