Regulations
| European Union | European Union - Regulations / Guidelines |
| United States | FDA regulations |
| Canada | Canadian pharmaceutical legislation |
| Greek legislation (SFEE) | FEK |
Scientific sites
| MEDLINE | Bibliography |
| Medscape | Topics of medical inerest |
| Health net | Health / Nutrition |
| Be well | Health / Nutrition |
Product - Raw materials
| Pharmaceutical on line | Raw materials |