Olopatadine HCL Drops Side Effects List Olopatadine HCL Drops side effects by likelihood and severity.The following side effects are associated with olopatadine HCL Drops: Common side effects of olopatadine HCL Drops: Head PainLess Severe Infrequent side effects of olopatadine HCL Drops: Accumulation Of Fluid In The Tissues Of The EyelidLess Severe Blurred VisionLess Severe Cold SymptomsLess Severe Dry EyeLess Severe Eye IrritationLess Severe Eye ItchingLess Severe Feel Like Throwing UpLess Severe Feeling WeakLess Severe Increased Amount Of Blood In The Lining Of The EyeLess Severe Inflammation Of The Cornea Of The EyeLess Severe Inflammation Of The NoseLess Severe Pain In The EyeLess Severe Runny NoseLess Severe Sinus Irritation And CongestionLess Severe Taste ProblemsLess Severe Rare side effects of olopatadine HCL Drops: Hypersensitivity Drug ReactionSevere Throat IrritationLess Severe Throat PainLess Severe
