1.   A synthetic form of melatonin can be bought over-the-counter at health food stores and many pharmacies.

2.   As part of its campaign, the society will publicise the fact that the active ingredient in bear bladders prized by traditional oriental medicine is available in synthetic form.

3.   The cloud in this particular silver lining is progestogen, a synthetic form of the hormone progesterone.

4.   Androstenedione is a synthetic form of a male hormone that occurs naturally in the body and is converted to testosterone.

5.   Andro is a synthetic form of a male hormone that occurs naturally in the body and is converted to testosterone.

6.   As a synthetic form of testosterone, those organizations put andro on the list of banned substance simply because they knew it had muscle-building properties.

7.   A synthetic form of the drug had to be developed to ensure adequate supplies for making the cancer drug.

8.   Estradiol is a synthetic form of the female hormone estrogen.

9.   For ethical reasons, the children were still given the old treatment for ADA deficiency, consisting of regular injections of a synthetic form of the enzyme.