The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Temporary blurry vision
- Temporary burning or stinging in the eye after using
Less Common Side Effects
- Red eyes
- Crusty lashes
- Eye pain
- Feeling like there's something in your eye
- Itchy eyes
- More tears than usual
- Headache
- Dizziness
- Common cold symptoms
Timolol serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Trouble breathing: shortness of breath, wheezing, chest tightness
- Heart failure: shortness of breath; fatigue; swelling in the legs, ankles and feet
- Allergic reactions: rash around your eyes or face, closing of the throat, hives, swelling
Source: DailyMed
More on Timolol side effects

The following Timolol side effects have also been reported
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
More common
Chest pain or discomfort
lightheadedness, dizziness, or fainting
shortness of breath
slow or irregular heartbeat
unusual tiredness
Rare
Noisy breathing
small clicking, bubbling, or rattling sounds in the lung when listening with a stethoscope
swelling of hands, ankles, feet, or lower legs
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Blurred vision
continuing ringing or buzzing or other unexplained noise in ears
headache
hearing loss
nervousness
pounding in the ears
sweating
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Rare
Acid or sour stomach
belching
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
decreased interest in sexual intercourse
feeling of constant movement of self or surroundings
inability to have or keep an erection
indigestion
lack or loss of strength
loss in sexual ability, desire, drive, or performance
sensation of spinning
stomach discomfort, upset, or pain
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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