Patients sensitive to any of the ophthalmic or systemic beta-adrenergic blocking agent may be sensitive to timolol also.
Regular visits to physician to check eye pressure during therapy.
Ophthalmic beta-adrenergic blocking agents may absorbed to systemic and cause the same adverse effects of systemic drugs (Infants may be especially sensitive to the effects of ophthalmic beta-adrenergic blocking agents. This may increase the chance of adverse effects during treatment.)