What side effects can Timolol have?
Below you will find the most important information about possible known side effects of timolol.
These side effects do not occur, but you can. Because every person reacts differently to medication. Please also note that the type and frequency of side effects may vary depending on the drug formulation (eg tablet, syringe, ointment).
Uncommon side effects:
blurred vision such as double vision, conjunctivitis, drooping eyelid, dry eyes, corneal inflammation, lidentitis, decreased corneal sensitivity.
Side effects without frequency:
fatigue, weakness, nausea, temporary headache, dizziness; Hypersensitivity reactions (burning, itching, redness, hives, skin hives); in the lungs, spasms of the bronchi; cardiac arrhythmias and a slowing of the heartbeat, strengthening of heart muscle weakness, lowering of blood pressure; Mood changes like depression.
Using timolol in the form of eye drops may nevertheless result in general side effects such as difficulty in breathing, low blood pressure and cardiac arrhythmias. Older people, especially those with timolol eye drops, are at an increased risk of experiencing disorders of consciousness and falls.
What interactions does timolol show?
Please note that the interactions may vary depending on the drug formulation of a drug (eg tablet, syringe, ointment).
Timolol, together with adrenaline-containing eye drops, can trigger an enlargement of the pupil. If timolol is used together with adrenaline and pilocarpine-containing eye drops, the intraocular pressure lowering effect can be increased.
Together with insulin or other diabetes-related drugs, timolol may increase or prolong its effects. Warning signs of hypoglycaemia such as palpitations and tremors may be obscured or reduced. Therefore, regular blood glucose monitoring is required.
If timolol is used with other antihypertensive agents at the same time, it can lead to an increased blood pressure drop. Such agents are, for example, other beta-blockers and representatives of the groups tri- and tetracyclic antidepressants, hypnotics (barbiturates), active ingredients for water excretion (diuretics), blood vessel dilating agents (vasodilators) and anesthetics (narcotics).