The certification process may be taken internally or externally.

The third step involves the use of medications which are taken internally by pill or injection.

The others are a deadly poison, if taken internally.

Alcohol, taken internally, seems to increase the tolerance to radioactivity.

It can be applied externally as well as taken internally.

Soon it will become white jade, which may be taken internally.

There have been relatively few studies about possible benefits of aloe gel taken internally.

Some very common oils like Eucalyptus are extremely toxic when taken internally.

Many of the oils are potent and can be dangerous if taken internally (swallowed).

This medicine can be taken internally or simply rubbed on the skin.