Vexol

Uses

Vexol ophthalmic suspension is used for the treatment of postoperative inflammation following ocular surgery and in the treatment of anterior uveitis.

Vexol is also used to associated treatment for these conditions: Anterior Uveitis (AU), Ocular Inflammation

How Vexol works

Vexol is a glucocorticoid receptor agonist. The antiinflammatory actions of corticosteroids are thought to involve lipocortins, phospholipase A2 inhibitory proteins which, through inhibition of arachidonic acid, control the biosynthesis of prostaglandins and leukotrienes. By binding to the glucocorticoid receptor, this drug ultimately leads to changes in genetic transcription involving the lipocortins and prostaglandins.

Dosage

Vexol dosage

Post-Operative Inflammation: Apply one to two drops of Vexol1% Ophthalmic Suspension into theconjunctivalsac of the affected eye four times daily beginning 24 hours after surgery and continuing throughout the first 2 weeks of the postoperative period.

Anterior Uveitis: Apply one to two drops of Vexol1% Ophthalmic Suspension into the conjunctival sac of the affected eye every hour during waking hours for the first week, one drop every two hours during waking hours of the second week, and then taper until uveitis is resolved.

Side Effects

Reactions associated with ophthalmic steroids include elevated intraocular pressure, which may be associated with optic nerve damage, visual acuity and field defects, posterior subcapsular cataract formation, secondary ocular infection from pathogens including herpes simplex, and perforation of the globe where there is thinning of the cornea or sclera.

Ocular adverse reactions occurring in 1 - 5% of patients in clinical studies of Vexol 1% (rimexolone ophthalmic suspension) included blurred vision, discharge, discomfort, ocular pain, increased intraocular pressure, foreign body sensation, hyperemia and pruritus.

Other ocular adverse reactions occurring in less than 1% of patients included sticky sensation, increased fibrin, dry eye, conjunctival edema, corneal staining, keratitis, tearing, photophobia, edema, irritation, corneal ulcer, browache, lid margin crusting, corneal edema, infiltrate, and corneal erosion.

Non-ocular adverse reactions occurred in less than 2% of patients. These included headache, hypotension, rhinitis, pharyngitis, and taste perversion.

Toxicity

Symptoms of overdose include retinal toxicity, glaucoma, and subcapsular cataract.

Precaution

Fungal infections of the cornea are particularly prone to develop coincidentally with long-term local steroid application. Fungal invasion must be considered in any persistent corneal ulceration where a steroid has been or is in use.

For ophthalmic use only. Use of the same bottle for both eyes is not recommended with topical eye drops that are used in association with surgery.

The initial prescription and renewal of the medication order beyond 14 days should be made by a physician only after examination of the patient with the aid of magnification, such as slit lamp biomicroscopy and where appropriate, fluorescein staining. If signs and symptoms fail to improve after two days, the patient should be reevaluated. If this product is used for 10 days or longer,intraocular pressure should be monitored even though it may be difficult in children and uncooperative patients

Interaction

No information provided

Food Interaction

Elimination Route

Systemically absorbed.

Half Life

The serum half-life of rimexolone could not be reliably estimated due to the large number of samples below the quantitation limit of the assay (80 pg/mL). However, based on the time required to reach steady-state, the half-life appears to be short (1-2 hours).

Elimination Route

Following IV administration of radio-labelled rimexolone to rats, greater than 80% of the dose is excreted via the feces as rimexolone and metabolites.

Pregnancy & Breastfeeding use

Pregnancy Category C. Vexol has been shown to be teratogenic and embryotoxic in rabbits following subcutaneous administration at the lowest dose tested (0.5 mg/kg/day, approximately 2 times the recommended human ophthalmic dose). Corticosteroids are recognized to cause fetal resorptions and malformations in animals. There are no adequate and well-controlled studies in pregnant women. Vexol 1% (rimexolone ophthalmic suspension) should be used in pregnant women only if the potential benefit to the mother justifies the potential risk to the fetus.

Nursing Mothers: It is not known whether topical ophthalmic administration of corticosteroids could result in sufficient systemic absorption to produce detectable quantities in human breast milk. Nevertheless, caution should be exercised when topical corticosteroids are administered to a nursing woman; a decision should be made whether to discontinue nursing or discontinue therapy, taking into consideration the importance of the drug to the mother.

Contraindication

Vexol 1% (rimexolone ophthalmic suspension) is contraindicated in epithelial herpes simplex keratitis (dendritic keratitis), vaccinia, varicella, and most other viral diseases of the cornea and conjunctiva; mycobacterial infection of the eye; fungal diseases of the eye; acute purulent untreated infections which, like other diseases caused by microorganisms, may be masked or enhanced by the presence of the steroid; and in those persons with hypersensitivity to any component of the formulation.

Special Warning

Pediatric Use: Safety and effectiveness in pediatric patients have not been established.

Geriatric Use: No overall differences in safety or effectiveness have been observed between elderly and younger patients.

Storage Condition

Store upright between 2-25° C. Do not freeze. Shake well before use.

Innovators Monograph

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