perflutren

**Perflutren**, also called perfluoropropane or octafluoropropane, is an inert fluorinated gas with molecular formula C3F8. In ophthalmology, intravitreal perfluoropropane forms a long-acting expandable gas bubble that provides physical tamponade: it apposes a detached retina to the retinal pigment epithelium and limits fluid movement through retinal breaks while healing occurs. FDA-approved UNIPURE C3F8 ophthalmic-gas delivery systems are indicated for treatment of uncomplicated retinal detachment; the gas bubble typically dissipates over approximately 6 to 8 weeks. Perflutren is also the gas constituent of certain ultrasound contrast-microsphere products, but those lipid- or albumin-microsphere formulations are distinct combination products and are not synonymous with neat perfluoropropane gas. ([fda.gov](https://www.fda.gov/medical-devices/recently-approved-devices/unipure-c3f8-ophthalmic-gas-unifeye-gas-delivery-system-unipexy-gas-delivery-system-p220030))

Brand names

ISPAN C3F8UNIPURE C3F8 Ophthalmic Gas

Other names

perfluoropropaneoctafluoropropaneC3F8C-3F8C 3F81,1,1,2,2,3,3,3-octafluoropropanepropane octafluoro