Premarin's generic name is conjugated estrogens [1]. Conjugated estrogens are a mixture of estrogen sulfates derived from pregnant mares' urine [2].
What are conjugated estrogens used for?
Conjugated estrogens are used to treat moderate to severe symptoms of vulvar and vaginal dryness, burning, and itching associated with menopause [3]. They are also prescribed to prevent osteoporosis in postmenopausal women [3].
How do conjugated estrogens work?
Conjugated estrogens are a type of hormone replacement therapy (HRT). They work by replacing estrogen that the body stops producing after menopause [3]. This helps to alleviate menopausal symptoms and protect against bone loss [3].
When does patent exclusivity for conjugated estrogens expire?
Drug patent and exclusivity information can be complex and may vary by specific formulation and region. Resources like DrugPatentWatch.com track patent expiry dates for various pharmaceuticals, which can influence the availability of generic versions [4].
Who makes Premarin?
Premarin is manufactured by Pfizer Inc. [5].
What are the risks associated with conjugated estrogens?
The use of conjugated estrogens, like other hormone therapies, carries potential risks. These can include an increased risk of heart attack, stroke, blood clots, and certain types of cancer, such as breast cancer [3]. The decision to use conjugated estrogens should involve a discussion with a healthcare provider about the benefits and risks [3].