Dragon Pharma have borrowed the original Roche trade name for their isotretinoin and supply it in bulk — 100 tablets at 20 mg, rather than the ten-capsule strips the pharmacy brands use.
Isotretinoin belongs to the retinoid class, structurally close to vitamin A, and its effect on the skin comes from shutting down sebaceous gland activity and normalising follicular keratinisation. Dragon Pharma is a steroid-market manufacturer rather than a dermatology house, and this listing shows it: the container is sized for long uninterrupted courses instead of for pharmacy dispensing in strips.