Products Dextrans are commercially available in the form of ophthalmic products. Structure and properties Mixture of polysaccharides. Types: Dextran 1, Dextran 40, Dextran 60 for the preparation of parenterals. Effects Dextran (ATC S01XA20) is a natural macromolecular polysaccharide. It forms a persistent film of moisture on the cornea, thereby counteracting the symptoms of mechanical corneal … Dextrane
Products Carmellose is commercially available in the form of eye drops and as an oral spray (e.g., Cellufluid, Glandosane, Optava). Structure and properties Carmellose is the calcium or sodium salt of a partially -carboxymethylated cellulose (carboxymethylcellulose calcium or carboxymethylcellulose sodium). Effects Carmellose (ATC S01XA20) forms an optically clear film on the eye, which approximates natural … Carmellose
Products Various eye drops and eye gels containing hyaluronic acid are commercially available. These are registered medicinal products (e.g., Lacrycon) and medical devices (e.g., Bepanthen eye drops). Structure and properties Hyaluronic acid is usually present in the preparations in the form of the sodium salt sodium hyaluronate. Sodium hyaluronate is a natural glycosaminoglycan composed of … Hyaluronic Acid Eye Drops
Products Hypromellose is commercially available in tear substitutes in the form of eye drops. It is also present in tablets as a pharmaceutical [excipient>]. Structure and properties Hypromellose (methylhydroxypropyl cellulose) is a partially -methylated and -(2-hydroxypropylated) cellulose. It exists as a white, yellowish white or grayish white powder or as granules and is practically insoluble … Hypromellose (Hydroxypropylmethylcellulose)
Products Povidone K 25 is commercially available in the form of eye drops in dropper bottles and as monodoses (Oculac, Protagent). It has been approved in many countries since 1990. Structure and properties Povidone consists of linear polymers of 1-ethenylpyrollidin-2-one. The different types of povidone are characterized by the viscosity of their solutions, expressed by … Povidone K 25