British law says that any new drug used for medicine must be tested on at least two different types of live mammal. One of these must be a large non-rodent type animal.
This is to make sure the drug works and doesn't hurt you.
Animal testing has also sometimes been used for developing:
- Household products
- Agricultural chemicals
- Industrial chemicals
- Food additives
In some countries animals are also used to test beauty products. But this is not allowed in Britain any more.