He said that such a drug might be able to block the action of an enzyme needed for replication.

Trypsin is given to people who lack enzymes needed for digestion.

But give your body time to adapt and increase the digestive enzymes needed to break down fiber.

However, the human body already contains all the enzymes needed for digestion.

Patients with porphyria have a deficiency of certain enzymes needed for this process.

Drugs also are used to inhibit enzymes needed for the survival of pathogens.

The trade-off, however, is a loss of the enzymes needed for endurance activities.

Statins work by inhibiting an enzyme needed for the liver to produce cholesterol.

It is one of a series of enzymes needed to break down tyrosine.

We find that all the enzymes needed to accomplish the oxidation reactions are confined to certain tissues.