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Ogen (Estropipate) - Summary




Close clinical surveillance of all women taking estrogens is important. Adequate diagnostic measures, including endometrial sampling when indicated, should be undertaken to rule out malignancy in all cases of undiagnosed persistent or recurring abnormal vaginal bleeding. There is no evidence that the use of "natural" estrogens result in a different endometrial risk profile than "synthetic" estrogens at equivalent estrogen doses. (See WARNINGS, Malignant neoplasms, Endometrial cancer.)


Estrogens with and without progestins should not be used for the prevention of cardiovascular disease. (See WARNINGS, Cardiovascular disorders.)

The Women's Health Initiative (WHI) study reported increased risks of myocardial infarction, stroke, invasive breast cancer, pulmonary emboli, and deep vein thrombosis in postmenopausal women (50 to 79 years of age) during 5 years of treatment with oral conjugated estrogens (CE 0.625 mg) combined with medroxyprogesterone acetate (MPA 2.5 mg) relative to placebo. (see CLINICAL PHARMACOLOGY, Clinical Studies.)

The Women's Health Initiative Memory Study (WHIMS), a substudy of WHI, reported increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 4 years of treatment with oral conjugated estrogens plus medroxyprogesterone acetate relative to placebo. It is unknown whether this finding applies to younger postmenopausal women or to women taking estrogen alone therapy. (See CLINICAL PHARMACOLOGY, Clinical Studies.)



estropipate tablets, USP

OGEN (estropipate tablets), (formerly piperazine estrone sulfate), is a natural estrogenic substance prepared from purified crystalline estrone, solubilized as the sulfate and stabilized with piperazine. It is appreciably soluble in water and has almost no odor or taste — properties which are ideally suited for oral administration. The amount of piperazine in OGEN is not sufficient to exert a pharmacological action. Its addition ensures solubility, stability, and uniform potency of the estrone sulfate.

OGEN is indicated in the:

  1. Treatment of moderate to severe vasomotor symptoms associated with the menopause.
  2. Treatment of moderate to severe symptoms of vulval and vaginal atrophy associated with the menopause. When prescribing solely for the treatment of symptoms of vulvar and vaginal atrophy, topical vaginal products should be considered.
  3. Treatment of hypoestrogenism due to hypogonadism, castration or primary ovarian failure.
  4. Prevention of postmenopausal osteoporosis. When prescribing solely for the prevention of postmenopausal osteoporosis, therapy should only be considered for women at significant risk of osteoporosis and for whom non-estrogen medications are not considered to be appropriate.
    The mainstays for decreasing the risk of postmenopausal osteoporosis are weight-bearing exercise, adequate calcium and vitamin D intake, and when indicated, pharmacologic therapy. Postmenopausal women require an average of 1500 mg/day of elemental calcium. Therefore, when not contraindicated, calcium supplementation may be helpful for women with suboptimal dietary intake. Vitamin D supplementation of 400–800 IU/day may also be required to ensure adequate daily intake in postmenopausal women.

See all Ogen indications & dosage >>


Media Articles Related to Ogen (Estropipate)

Moffitt researchers say androgen deprivation therapy may lead to cognitive impairment
Source: Neurology / Neuroscience News From Medical News Today [2015.05.16]
Cognitive impairment can occur in cancer patients who are treated with a variety of therapies, including radiation therapy, hormone therapy, and chemotherapy.

Exogenous microRNAs in maternal food pass through placenta, regulate fetal gene expression
Source: Genetics News From Medical News Today [2015.05.15]
In a new study published in the Protein & Cell, Chen-Yu Zhang's group at Nanjing University reports that small non-coding RNAs in maternal food can transfer through placenta to regulate fetal gene...

Cognitive Impairment Linked to Androgen Deprivation Therapy
Source: Medscape Hematology-Oncology Headlines [2015.05.14]
Men receiving androgen deprivation therapy for treating prostate cancer are likely to experience cognitive impairment, a new study suggests.
Medscape Medical News

Women with inherited KRAS-variant mutation may be at increased breast cancer risk due to acute estrogen withdrawal
Source: Breast Cancer News From Medical News Today [2015.05.14]
UCLA researchers have discovered that for women with a relatively common inherited mutation, known as the KRAS-variant, abrupt lowering of estrogen may increase their breast cancer risk and impact...

First cancer-promoting oncogenes discovered in rare brain tumor of children and adults
Source: Cancer / Oncology News From Medical News Today [2015.05.14]
St. Jude Children's Research Hospital researchers have identified the first genetic alterations responsible for the brain tumor choroid plexus carcinoma using an approach that could help find...

more news >>

Published Studies Related to Ogen (Estropipate)

A bi-functional anti-thrombosis protein containing both direct-acting fibrin(ogen)olytic and plasminogen-activating activities. [2011.03.14]
CONCLUSIONS: The study identified novel thrombolytic agent with prospecting clinical potential because of its bi-functional merits containing both plasmin- and PA-like activities and unique pharmacological kinetics in vivo.

A T cell-binding fragment of fibrinogen can prevent autoimmunity. [2010.06]
The C-terminal domain of the fibrinogen gamma chain (gammaC) has been shown to bind to the integrins alphaIIbbeta3, alphaMbeta2 and alphaVbeta3...

Suppression of the barley uroporphyrinogen III synthase gene by a Ds activation tagging element generates developmental photosensitivity. [2009.03]
Chlorophyll production involves the synthesis of photoreactive intermediates that, when in excess, are toxic due to the production of reactive oxygen species (ROS). A novel, activation-tagged barley (Hordeum vulgare) mutant is described that results from antisense suppression of a uroporphyrinogen III synthase (Uros) gene, the product of which catalyzes the sixth step in the synthesis of chlorophyll and heme.

Protective effects of plasmin(ogen) in a mouse model of Staphylococcus aureus-induced arthritis. [2008.03]
OBJECTIVE: To assess the functional roles of plasmin in a murine model of Staphylococcus aureus-induced bacterial arthritis... CONCLUSION: Our findings indicate that plasmin plays a pluripotent role in protecting against S aureus-induced arthritis by activating inflammatory cells, killing bacteria, removing necrotic tissue, and enhancing cytokine expression.

Fibrin(ogen) exacerbates inflammatory joint disease through a mechanism linked to the integrin alphaMbeta2 binding motif. [2007.11]
Fibrin deposition within joints is a prominent feature of arthritis, but the precise contribution of fibrin(ogen) to inflammatory events that cause debilitating joint damage remains unknown. To determine the importance of fibrin(ogen) in arthritis, gene-targeted mice either deficient in fibrinogen (Fib-) or expressing mutant forms of fibrinogen, lacking the leukocyte receptor integrin alphaMbeta2 binding motif (Fibgamma390-396A) or the alphaIIbbeta3 platelet integrin-binding motif (FibgammaDelta5), were challenged with collagen-induced arthritis (CIA)...

more studies >>

Clinical Trials Related to Ogen (Estropipate)

Phase 2a Randomized, Double-Blind Study of Oleoyl-Estrone in Male Morbidly Obese Adults [Active, not recruiting]

Phase 2a Obesity Study of Oral Doses of Oleoyl-Estrone (MP-101) [Active, not recruiting]
The purpose of this study is to evaluate the safety, preliminary efficacy, and pharmacokinetics of two 14-day cycles of escalating oral doses of MP 101 in 100 obese adult subjects.

A Study To Compare The Amount Of Premarin Components That Is Absorbed Into The Blood Of Japanese Healthy Postmenopausal Women Following Oral Administration Of Two Different Tablets Of Premarin Under Fast and Fed Conditions. [Recruiting]
The purpose of this study is to assess the bioequivalence and food effect for a new Premarin formulation compared with a Premarin reference tablet in Japanese healthy postmenopausal women.

Evaluation of Efficacy/Safety of EVE-PMS Skin Test Panel [Recruiting]
The EVE-PMS technology is intended for determination of intolerance or sensitivity to sex hormones, among women suffering from severe PreMenstrual Syndrome (PMS). The system includes skin testing panel for identification of hormones to which the patients might be sensitive. Tests are applied close to the ovulation period and the skin reaction is examined in 20 minutes, 48 hours and daily during the following month. Results of skin tests and patient's history will determine the value of EVE-PMS Skin-Test Panel as a diagnostic tool for severe PMS patients.

Evaluation of Safety/Efficacy of Diagnostic Skin Test Panel and Desensitization Hormone Kit for Treatment of Premenstrual Syndrome (PMS) [Recruiting]
The EVE-PMS technology is intended for determination of intolerance or sensitivity to sex hormones, among women suffering from severe PreMenstrual Syndrome (PMS) and desensitizes them with the relevant sex hormones in order to reduce PMS symptoms. The system includes skin testing panel for identification of hormones to which the patients might be sensitive. Tests are applied close to the ovulation period and the skin reaction is examined in 20 minutes, 48 hours and daily during the following month. Results of skin tests and patient's history will determine the eligibility of the patients to enter a desensitization protocol. During the desensitization period hormones to which the patient were found sensitive to, are injected intradermally three times (once a month) within the luteal phase in increasing doses. The end-point of the study is a statistically significant decrease, or elimination of PMS symptoms, compared to a solvent group.

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Reports of Suspected Ogen (Estropipate) Side Effects

Breast Cancer Female (6)Depression (5)Abdominal Pain (3)Fibrocystic Breast Disease (3)Dyspepsia (3)Chest Pain (3)Breast Hyperplasia (3)Breast Mass (3)Ovarian Cyst (3)Aortic Stenosis (2)more >>

Page last updated: 2015-05-16

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