| 31. | Premarin contains some of these estrogens.
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| 32. | The FDA in May refused to approve the Duramed product as a generic alternative to Premarin.
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| 33. | Panel members said Evista didn't appear as effective as Premarin in building bone density.
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| 34. | One study revealed that Premarin helps stop tooth loss in women, a symptom of osteoporosis.
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| 35. | -- Premarin, used for estrogen replacement, rose to $ 208 from $ 186.
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| 36. | Ayerst followed suit, with the introduction of Premarin ( conjugated equine estrogens ) in 1941.
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| 37. | Premarin replaced Emmenin due to the fact that it was easier and less expensive to produce.
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| 38. | Premarin was introduced by Ayerst in 1941
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| 39. | The other estrogens were labeled biproducts or impurities, and the agency limited their presence in Premarin.
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| 40. | The other estrogens were labeled byproducts or impurities, and the agency limited their presence in Premarin.
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