No, Brimonist does not cause pupil dilation. On the contrary, in very rare cases, it may cause pupil constriction, also called miosis. If you experience miosis, you may have night vision difficulty, halos and glare. Contact your doctor if you experience these symptoms.

Brimonist may cause low or high blood pressure. Before taking Brimonist, inform your doctor if you are already taking any medicines to lower blood pressure. Moreover, keep a regular check on your blood pressure while you are taking Brimonist.

Yes, Brimonist may cause drowsiness and may also cause fatigue which may impair the ability to drive or use machinery. It may also cause blurred or abnormal vision which could cause difficulty in driving or using machinery, especially at night or in reduced lighting. You should avoid driving or using machinery until these symptoms have subsided.

No, Brimonist is not a beta blocker. It is an alpha adrenergic agonist which means it acts on alpha adrenergic receptor present in the eye. This medicine reduces the high pressure in the eye by decreasing the amount of fluid in the eyes. It has minimal effect on heart and lungs.