اللاكتوز

Lactose is a natural sugar that's found in milk. It is a carbohydrate and it is made up of two sugars: glucose and galactose. Lactose is an important source of energy for babies, and it is also commonly used in food processing and pharmaceutical drug manufacturing.

• It acts as a filler: Sometimes the active ingredient in a drug is present in very small quantities. Fillers like lactose bulk up the drug, helping it flow better. Fillers also make it easier to measure the active ingredient in drugs.
• It acts as a binder: Lactose binds pills together by helping the other ingredients in a tablet mix and stick together.

Some of the characteristics of lactose that make it work well for these purposes are its blandness, chemical and physical stability, easy availability, compatibility with active ingredients, and ability to dissolve in water. 

Pharmaceutical-grade lactose is produced and processed to meet industry purity standards.