Corvental-D Capsules are hard gelatin capsules containing either 100 mg, 200 mg or 500 mg Theophylline Ph.Eur. in a sustained release ``Divido' presentation. The capsules are coloured and sized, according to active ingredient content

Corvental-D 100 mg: blue and white (small capsule)

Corvental-D 200 mg: green (small capsule)

Corvental-D 500 mg: green (large capsule)