Triesence is a corticosteroid (a type of steroid) in a liquid suspension form that contains an active drug called triamcinolone acetonide at a concentration of 40 mg/mL. In simple terms, it’s a strong anti-inflammatory medicine designed specifically for use inside the eye.

What makes Triesence different from many other steroid medicines you may have heard of is the way it’s prepared and delivered. Rather than swallowing a pill or applying a cream, Triesence is injected into the eye or used during eye surgery to help reduce inflammation that hasn’t responded to other treatments and to help surgeons visualize structures inside the eye.

A key benefit of this product is that, because it’s formulated and approved for intraocular use, it is preservative-free. This reduces the risk of irritation or side effects that can happen if other substances are put inside the eye.

Right now, the version available for clinicians and patients is supplied as a single-use 1 mL vial containing the 40 mg/mL suspension. This means each vial is prepared for one injection or one surgical use only, which helps make sure dosing and handling are precise and safe.