Overview of Hms
Quick Facts
| Property | Description |
|---|---|
| Active ingredient | Medrysone (INN) |
| Form | Sterile ophthalmic suspension / solution |
| Pharmacological class | Corticosteroid (Synthetic glucocorticoid) |
| Origin | Synthetic (a progesterone derivative) |
| Route of administration | Topical ophthalmic |
What is the Composition and Class of Hms?
HMS is an ophthalmic medicine whose active component is the synthetic compound medrysone. This compound classifies the medicine as a corticosteroid—specifically, a synthetic glucocorticoid developed for highly localized use. Medrysone is a single-entity drug, chemically derived from progesterone, which places it structurally among the hormones that regulate inflammatory and immune responses. Unlike some earlier, more systemically active corticosteroids, medrysone was engineered to prioritize topical anti-inflammatory efficacy with a distinct molecular profile. Medrysone is categorized under the code S01BA08, designating it as an ophthalmic anti-inflammatory agent.
What Form is Hms and What is its General Purpose?
HMS is supplied as a sterile ophthalmic suspension or ophthalmic solution, formulated for topical ophthalmic administration. This dosage form consists of medrysone typically at a 1.0% concentration, finely dispersed within an aqueous sterile vehicle that includes stabilizing excipients like polyvinyl alcohol (Liquifilm) and hypromellose. The suspension form, distinct from simple solutions, is intended to facilitate extended contact time on the surface of the eye. The general purpose of HMS is to provide localized anti-inflammatory and anti-allergic activity. Medrysone acts to suppress symptoms like swelling and redness in the eye's anterior segment. This action means the medication works at the site of application to address inflammation associated with non-infectious conditions, providing relief for conditions involving the conjunctiva or cornea.
Regulatory References

