Current or history of CHD, heart failure, low BP; disturbances of heart rate eg, slow heartbeat; breathing problems, asthma or COPD; poor blood circulation disease (eg, Raynaud's disease or syndrome); diabetes; overactive thyroid gland; Prinzmetal angina; severe allergic reactions usually requiring hospital treatment; viral eye infection caused by HSV. Patients undergoing eye surgery including cataract surgery or history thereof; suffering from eye problems or dry eyes; wearing contact lenses. May affect some medicines used during anaesth. Remove contact lenses prior to instillation & wait 15 min before reinserting. If using w/ other eye drops, wait at least 5 min before using the other eye drops. Contains macrogolglycerol hydroxystearate. May affect ability to drive or use machines. Do not use during pregnancy & lactation. Not recommended in childn <18 yr.