Basically, the drug has good tolerability
Local reactions: immediately after instillation of the drug, a rapid burning sensation, lacrimation, blurring of vision is possible.
With prolonged use (more than 2 weeks), an increase in intraocular pressure is possible; the development of glaucoma with optic nerve damage, reduced visual acuity and loss of visual fields, as well as the formation of posterior subcapsular cataract, and also the thinning and perforation of the cornea; very rarely - the spread of herpetic and bacterial infection.
In patients with hypersensitivity to dexamethasone or benzalkonium, chloride may develop allergic conjunctivitis and blepharitis.
Itching, palpebral erythema, or conjunctival erythema.
In the case of corneal or scleral ulcers, a corticosteroid may delay healing and promote re-infection.
With prolonged use, an increased risk of developing system side effects of glucocorticosteroids:
From the endocrine system: reduction of glucose tolerance, steroid diabetes mellitus or manifestation of latent diabetes mellitus, oppression of adrenal function, Itenko-Cushing syndrome.
From the digestive system: nausea, vomiting, increased or decreased appetite, exacerbation of chronic diseases of the gastrointestinal tract.
From the cardiovascular system: arrhythmias, bradycardia, increased blood pressure.
From the nervous system: increased intracranial pressure, nervousness or anxiety, insomnia, dizziness, headache.