"Researchers at the National Eye Institute (NEI) have found a unique cell type that, in tests on mice, can protect against uveitis—a group of inflammatory diseases that affect the eye and can cause vision loss.
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In clinical trials, the use of BETAGAN® (levobunolol) ophthalmic solution has been associated with transient ocular burning and stinging in up to 1 in 3 patients, and with blepharoconjunctivitis in up to 1 in 20 patients. Decreases in heart rate and blood pressure have been reported (see CONTRAINDICATIONS and WARNINGS).
Decreased corneal sensitivity has been noted in a small number of patients. Although levobunolol has minimal membrane-stabilizing activity, there remains a possibility of decreased corneal sensitivity after prolonged use.
The following additional adverse reactions have been reported either with BETAGAN® (levobunolol) ophthalmic solution or ophthalmic use of other beta-adrenergic receptor blocking agents:
BODY AS A WHOLE: Headache, asthenia, chest pain. CARDIOVASCULAR: Bradycardia, arrhythmia, hypotension, syncope, heart block, cerebral vascular accident, cerebral ischemia, congestive heart failure, palpitation, cardiac arrest. DIGESTIVE: Nausea, diarrhea. PSYCHIATRIC:Depression, confusion, increase in signs and symptoms of myasthenia gravis, paresthesia. SKIN: Hypersensitivity, including localized and generalized rash, alopecia, Stevens-Johnson Syndrome. RESPIRATORY: Bronchospasm (predominantly in patients with pre-existing bronchospastic disease), respiratory failure, dyspnea, nasal congestion. UROGENITAL: Impotence. ENDOCRINE: Masked symptoms of hypoglycemia in insulin-dependent diabetics (see WARNINGS). SPECIAL SENSES: Signs and symptoms of keratitis, blepharoptosis, visual disturbances including refractive changes (due to withdrawal of miotic therapy in some cases), diplopia, ptosis.
Other reactions associated with the oral use of non-selective adrenergic receptor blocking agents should be considered potential effects with ophthalmic use of these agents.
Read the Betagan (levobunolol) Side Effects Center for a complete guide to possible side effects
Although BETAGAN® (levobunolol) ophthalmic solution used alone has little or no effect on pupil size, mydriasis resulting from concomitant therapy with BETAGAN® (levobunolol) and epinephrine may occur.
Close observation of the patient is recommended when a beta-blocker is administered to patients receiving catecholamine-depleting drugs such as reserpine, because of possible additive effects and the production of hypotension and/or marked bradycardia, which may produce vertigo, syncope, or postural hypotension.
Patients receiving beta-adrenergic blocking agents along with either oral or intravenous calcium antagonists should be monitored for possible atrioventricular conduction disturbances, left ventricular failure and hypotension. In patients with impaired cardiac function, simultaneous use should be avoided altogether.
The concomitant use of beta-adrenergic blocking agents with digitalis and calcium antagonists may have additive effects on prolonging atrioventricular conduction time.
Phenothiazine-related compounds and beta-adrenergic blocking agents may have additive hypotensive effects due to the inhibition of each other's metabolism.
Risk of anaphylactic reaction: While taking beta-blockers, patients with a history of severe anaphylactic reactions to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction.
Animal Studies: No adverse ocular effects were observed in rabbits administered BETAGAN® (levobunolol) ophthalmic solution topically in studies lasting one year in concentrations up to 10 times the human dose concentration.
Read the Betagan Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 10/20/2008
This monograph has been modified to include the generic and brand name in many instances.
Additional Betagan Information
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