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New Drug Delivery Systems |
| Section: NATURAL SCIENCE / AT THE EDGE |
| Author: Lee Katterman |
| Publication: The world & I online |
| Issue Date: 2/1/1986 |
| Size: 7,547 Words, 45,121 Characters |
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Emerging methods of administering medications may alter the course of therapeutic medicine.
The fall of 1961 marked the introduction of a new long-acting cold remedy proclaimed in early advertisements as "the capsule that thinks." Before long, the concept of "tiny time pills" that extend this medicine's effectiveness became familiar to millions of Americans--their first introduction to a class of drug products which remain active many hours after administration.
Contac is the product's name--from the phrase "continuous action." It only takes one capsule in the morning and one at night to hold at bay the coughing, sneezing, and runny nose of the common cold or allergies. No more two-tablets-every-four hours, or getting up in the middle of the night to take another dose.
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. . .
...ting these microspheres, a drug highly sensitive to radiation is pumped into the tumor region, and becomes incorporated into cell DNA.
When the radioactive microspheres then become lodged in tumor capillaries, they irradiate cellular DNA containing the drug, and disrupt further growth of these tumor cells. Ensminger hopes to begin studying this procedure in humans during early 1986. vbcrlf
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