Generic name: Timolol maleate.

Other brand names: Blocadren Oral, Timoptic Ocudose, Timoptic-XE.

Timoptic is an anti-glaucoma ophthalmic solution/topical beta-blocker. It reduces eye pressure by decreasing eye fluid production and increasing the fluid outflow from the eye.

Quick Facts About Timoptic


Used to treat glaucoma.

Timoptic Dosage

Use exactly as prescribed. If using Ocudose, use immediately after opening individual unit and throw out leftover solution. If using Timoptic-XE, shake only 1 time before each use. If using other eye medications, apply at least 10 minutes before applying Timoptic-XE. Do not allow tip of dispenser to actually touch the eye.

  • Usual adult dose: Timoptic — 1 drop of 0.25% solution in the affected eye 2 times per day. Doctor may switch to 0.5% solution if you do not respond to the initial dose. Timoptic-XE — 1 drop of 0.25% or 0.5% solution in the affected eye once per day.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: if using once per day — apply as soon as possible, unless it is the next day. In that case, do not take missed dose; go back to regular schedule. If using more than once per day — apply as soon as possible, unless almost time for next dose. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Timoptic Side Effects

Overdose symptoms:

no specific information about Timoptic. However, beta-blocker overdose symptoms: extremely slow heart rate, low blood pressure, severe heart failure, wheezing. If you suspect an overdose, immediately seek medical attention.

More common side effects: allergic reactions, anxiety, chest pain, confusion, conjunctivitis (pinkeye), cough, depression, diarrhea, difficult or labored breathing, disorientation, dizziness, double vision, drooping eyelid, dry mouth, eye discharge, eye irritation and inflammation, eye itching and tearing, fainting, fatigue, fluid in the lungs, hair loss, hallucinations, headache, heart failure, high blood pressure, hives, impotence, inability to breathe, increase in signs or symptoms of myasthenia gravis (severe muscle weakness), indigestion, inflammation of the eyelid, irregular heartbeat, loss of appetite, low blood pressure, nausea, nervousness, pain, rash, sensation of a foreign body in the eye, sleepiness, slow heartbeat, stroke, stuffy nose, throbbing or fluttering heartbeat, tingling or pins and needles, upper respiratory infection, visual disturbances, weakness, wheezing, worsened anginal (crushing chest pain).

No known less common or rare Timoptic side effects.


Inform your doctor before combining Timoptic with:

epinephrine (EpiPen), catecholamine-depleting medications such as blood pressure medications containing reserpine (Serpasil), calcium antagonists such as Cardizem and Isoptin, digitalis (Lanoxin). Avoid using with other topical beta-blockers; use with caution if taking oral beta-blockers such as Inderal and Tenormin.

No known fbod/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Appears in breast milk; could affect a nursing infant

Seniors may have some sensitivity and should immediately report eye infection to your doctor.

Not generally prescribed for children.

  • Do not use if you have: bronchial asthma, history of bronchial asthma, or other serious breathing conditions such as emphysema; slow heartbeat, heart block, active heart failure, or inadequate blood supply to the circulatory system; or if sensitive or allergic to Timoptic.
  • May mask symptoms of overactive thyroid.
  • Antiglaucoma effect decreases if using medication for a prolonged period.
  • Medication is absorbed into the body and may affect other parts of the body.
  • Use with caution if you have poor cerebral circulation or history of heart failure.
  • Let your doctor know of any allergies.
  • May mask symptoms of low blood sugar; diabetics should inform their doctor of their condition.
  • Tell your doctor or dentist in medical emergency or before surgery that you are taking Timoptic.


HealthSurvey.org provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Timoptic side effects, please contact your healthcare provider