CompositionTravoprost (0.004/0.5%w/v) SALT INFORMATIONTravoprost (0.004/0.5%w/v) TYPICAL USAGE Ocular hypertension. SIDE EFFECTS Dyspnea, blepharitis, brown pigmentation particularly in those with mixed-color irides, ocular irritation and pain, darkening, thickening, and lenghtening of eye lashes, periorbital and lid edema, transient punctate epithelial erosions, exacerbation of asthma, local skin reaction, macular edema. DRUG INTERACTION Tell your doctor of all prescription and nonprescription medication you may use. Do not start or stop any medicine without doctor or pharmacist approval. MECHANISM OF ACTION Travoprost free acid is a selective FP prostanoid receptor agonist and is believed to reduce intraocular pressure by increasing the drainage of aqueous humor, which is done primarily through increased uveoscleral outflow and to a lesser extent, trabecular outflow facility.