Lopreeza estradiol/norethindrone acetate 1 mg; .5 mg Tablet, Film Coated
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Radioactive Diagnostic Agent class.
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🩺 Clinical
- Great question. The estradiol (the estrogen part) is what actually relieves your hot flashes, night sweats, and vaginal dryness by replacing the estrogen your body stopped making a...
- What exactly is this medicine doing for me — why do I need both an estrogen and a progestin?
- Most women notice things like breast tenderness, some spotting or light bleeding, headaches, or nausea — especially in the first few months. Those are common and usually settle dow...
- What are the most important side effects I should actually watch out for?
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🧪 Inactive Ingredients / Excipients
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Lopreeza 1 mg/1; .5 mg 69238-1610-06 | Amneal | 28 tablets | $1.085 | AB | FDA listed | — |
| Lopreeza 1 mg/1; .5 mgthis 69238-1251-08 | Amneal | 28 tablets | — | AB | FDA listed | — |
| Activella 1 mg/1; .5 mg 60846-0232-01 | Amneal | 28 tablets | — | AB | FDA listed | — |
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The FDA lists approved generic versions of this medicine, but that does not always mean a pharmacy can get one today. Patent rules, launch agreements, supply and pricing can affect when generics actually arrive.
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 69238-1251-08 You're viewing this | 5 CARTON in 1 CELLO PACK (69238-1251-8) / 1 DIALPACK in 1 CARTON (69238-1251-6) / 28 TABLET, FILM COATED in 1 DIALPACK | 2014-10-01 | Active |
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| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | — Not published for this NDC No photo available yet for this listing. |
| Inactive ingredients (structured) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available. |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: CARDIOVASCULAR DISORDERS, BREAST CANCER, ENDOMETRIAL CANCER AND PROBABLE DEMENTIA Estrogen Plus Progestin Therapy Cardiovascular Disorders and Probable Dementia Estrogen plus progestin therapy should not be used for the prevention of cardiovascular disease or dementia [see Warnings and Precautions (5.1 , 5.3 ) , and Clinical Studies (14.5, 14.6) ] . The Women’s Health Initiative (WHI) estrogen plus progestin substudy reported increased risks of deep vein thrombosis (DVT), pulmonary embolism (PE), stroke and myocardial infarction (MI) in postmenopausal women (50 to 79 years of age) during 5.6 years of treatment with daily oral conjugated estrogen (CE) [0.625 mg] combined with medroxyprogesterone acetate (MPA) [2.5 mg], relative to placebo [see Warnings and Precautions (5.1), and Clinical Studies (14.5) ] .
The WHI Memory Study (WHIMS) estrogen plus progestin ancillary study of the WHI reported an increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 4 years of treatment with daily CE (0.625 mg) combined with MPA (2.5 mg), relative to placebo. It is unknown whether this finding applies to younger postmenopausal women [see Warnings and Precautions (5.3), Use in Specific Populations (8.5), and Clinical Studies (14.6) ] . Breast Cancer The WHI estrogen plus progestin substudy also demonstrated an increased risk of invasive breast cancer [see Warnings and Precautions (5.2), and Clinical Studies (14.5) ] .
In the absence of comparable data, these risks should be assumed to be similar for other doses of CE and MPA and other combinations and dosage forms of estrogens and progestins. Estrogens with or without progestins should be prescribed at the lowest effective doses and for the shortest duration consistent with treatment goals and risks for the individual woman. Estrogen-Alone Therapy Endometrial Cancer There is an increased risk of endometrial cancer in a woman with a uterus who uses unopposed estrogens.
Adding a progestin to estrogen therapy has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. Adequate diagnostic measures, including directed or random endometrial sampling when indicated, should be undertaken to rule out malignancy in postmenopausal women with undiagnosed persistent or recurring abnormal genital bleeding [see Warnings and Precautions (5.2) ] . Cardiovascular Disorders and Probable Dementia Estrogen-alone therapy should not be used for the prevention of cardiovascular disease or dementia [see Warnings and Precautions (5.1, 5.3) , and Clinical Studies (14.5, 14.6) ] .
The WHI estrogen-alone substudy reported increased risks of stroke and DVT in postmenopausal women (50 to 79 years of age) during 7.1 years of treatment with daily oral CE (0.625 mg)-alone, relative to placebo [see Warnings and Precautions (5.1) , and Clinical Studies (14.5) ] . The WHIMS estrogen-alone ancillary study of the WHI reported an increased risk of developing probable dementia in postmenopausal women 65 years of age or older during 5.2 years of treatment with daily CE (0.625 mg)-alone, relative to placebo.
It is unknown whether this finding applies to younger postmenopausal women [see Warnings and Precautions (5.3) , Use in Specific Populations (8.5) , and Clinical Studies (14.6) ] . In the absence of comparable data, these risks should be assumed to be similar for other doses of CE and other dosage forms of estrogens. Estrogens with or without progestins should be prescribed at the lowest effective doses and for the shortest duration consistent with treatment.
See full prescribing information for complete boxed warning Estrogen Plus Progestin Therapy Estrogen plus progestin therapy should not be used for the prevention of cardiovascular disease or dementia (5.1, 5.3) The Women’s Health Initiative (WHI) estrogen plus progestin substudy reported increased risks of deep vein thrombosis (DVT), pulmonary embolism (PE), stroke and myo…
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Lopreeza is an estrogen and progestin combination indicated in a woman with a uterus for: Lopreeza 1 mg/0.5 mg and 0.5 mg/0.1 mg are indicated in a woman with a uterus for: Treatment of Moderate to Severe Vasomotor Symptoms due to Menopause (1.1) Prevention of Postmenopausal Osteoporosis (1.3) Lopreeza 1 mg/0.5 mg is also indicated in a woman with a uterus for: Treatment of Moderate to Severe Symptoms of Vulvar and Vaginal Atrophy due to Menopause (1.2)
1.1 Treatment of Moderate to Severe Vasomotor Symptoms due to Menopause
1.2Treatment of Moderate to Severe Symptoms of Vulvar and Vaginal Atrophy due to Menopause Limitation of Use When prescribing solely for the treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause, topical vaginal products should be considered.
1.3Prevention of Postmenopausal Osteoporosis Limitation of Use When prescribing solely for the prevention of postmenopausal osteoporosis, therapy should only be considered for women at significant risk of osteoporosis and non-estrogen medication should be carefully considered.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Use of estrogen-alone, or in combination with a progestin, should be with the lowest effective dose and for the shortest duration consistent with treatment goals and risks for the individual woman. Postmenopausal women should be re-evaluated periodically as clinically appropriate to determine if treatment is still necessary. One tablet to be taken once daily (2)
2.1Treatment of Moderate to Severe Vasomotor Symptoms due to Menopause Lopreeza therapy consists of a single tablet to be taken once daily for the treatment of moderate to severe vasomotor symptoms due to menopause. Lopreeza 1 mg/0.5 mg Lopreeza 0.5 mg/0.1 mg
2.2Treatment of Moderate to Severe Symptoms of Vulvar and Vaginal Atrophy due to Menopause Lopreeza therapy consists of a single tablet to be taken once daily for the treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause. Lopreeza 1 mg/0.5 mg
2.3Prevention of Postmenopausal Osteoporosis Lopreeza therapy consists of a single tablet to be taken once daily for the prevention of postmenopausal osteoporosis. Lopreeza 1 mg/0.5 mg Lopreeza 0.5 mg/0.1 mg
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Lopreeza tablets are available in two strengths: Each tablet of Lopreeza 1 mg/ 0.5 mg contains 1 mg of estradiol and 0.5 mg of norethindrone acetate.The tablets are white, round, bi-convex, film-coated tablets engraved with NOVO 288 on one side and the APIS bull on the other. Each tablet of Lopreeza 0.5 mg/ 0.1 mg contains 0.5 mg of estradiol and 0.1 mg of norethindrone acetate.The tablets are white, round, bi-convex, film-coated tablets engraved with NOVO 291 on one side and the APIS bull on the other.
Lopreeza (estradiol/norethindrone acetate) 1 mg/0.5 mg tablet (3) Lopreeza (estradiol/norethindrone acetate) 0.5 mg/0.1 mg tablet (3)
⛔ Contraindications ▾
4 CONTRAINDICATIONS Lopreeza is contraindicated in women with any of the following conditions: Undiagnosed abnormal genital bleeding Known, suspected, or history of breast cancer Known, past or suspected estrogen-dependent neoplasia Active DVT, PE, or history of these conditions Active arterial thromboembolic disease (for example stroke and MI), or a history of these conditions Known anaphylactic reaction or angioedema or hypersensitivity to Lopreeza Known liver impairment or disease Known protein C, protein S, or antithrombin deficiency, or other known thrombophilic disorders Known or suspected pregnancy Undiagnosed abnormal genital bleeding (4) Known, suspected, or history of breast cancer (4, 5.2) Known or suspected estrogen-dependent neoplasia (4, 5.2) Active DVT, PE, or history of these conditions (4, 5.1) Active arterial thromboembolic disease (for example, stroke and MI), or a history of these conditions (4, 5.1) Known anaphylactic reaction or angioedema or hypersensitivity to Lopreeza (4) Known liver impairment or disease (4, 5.10) Known protein C, protein S, or antithrombin deficiency, or other known thrombophilic disorders (4) Known or suspected pregnancy (4, 8.1)
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Estrogens increase the risk of gall bladder disease (5.4) Discontinue estrogen if severe hypercalcemia, loss of vision, severe hypertriglyceridemia or cholestatic jaundice occurs (5.5, 5.6, 5.9, 5.10) Monitor thyroid function in women on thyroid replacement therapy (5.11, 5.18)
5.1Cardiovascular Disorders An increased risk of PE, DVT, stroke and MI has been reported with estrogen plus progestin therapy. An increased risk of stroke and DVT has been reported with estrogen-alone therapy. Should any of these occur or be suspected, estrogen with or without progestin therapy should be discontinued immediately.
Risk factors for arterial vascular disease (for example, hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (VTE) (for example, personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. Stroke In the WHI estrogen plus progestin substudy, a statistically significant increased risk of stroke was reported in women 50 to 79 years of age receiving daily CE (0.625 mg) plus MPA (2.5 mg) compared to women in the same age group receiving placebo (33 versus 25 per 10,000 women-years) [see Clinical Studies (14.5) ] .
The increase in risk was demonstrated after the first year and persisted. 1 Should a stroke occur or be suspected, estrogen plus progestin therapy should be discontinued immediately. In the WHI estrogen-alone substudy, a statistically significant increased risk of stroke was reported in women 50 to 79 years of age receiving daily CE (0.625 mg)-alone compared to women in the same age group receiving placebo (45 versus 33 per 10,000 women-years).
The increase in risk was demonstrated in year 1 and persisted [see Clinical Studies (14.5) ] . Should a stroke occur or be suspected, estrogen-alone therapy should be discontinued immediately. Subgroup analyses of women 50 to 59 years of age suggest no increased risk of stroke for those women receiving CE (0.625 mg)-alone versus those receiving placebo (18 versus 21 per 10,000 women-years).
1 Coronary Heart Disease In the WHI estrogen plus progestin substudy, there was a statistically non-significant increase risk of coronary heart disease (CHD) events (defined as nonfatal MI, silent MI, or CHD death) reported in women receiving daily CE (0.625 mg) plus MPA (2.5 mg) compared to women receiving placebo (41 versus 34 per 10,000 women-years). 1 An increase in relative risk was demonstrated in year 1, and a trend toward decreasing relative risk was reported in years 2 through 5 [see Clinical Studies (14.5) ] .
In the WHI estrogen-alone substudy, no overall effect on CHD events was reported in women receiving estrogen-alone compared to placebo 2 [see Clinical Studies (14.5) ]. Subgroup analyses of women 50 to 59 years of age suggest a statistically non-significant reduction in CHD events (CE [0.625 mg]-alone compared to placebo) in women with less than 10 years since menopause (8 versus 16 per 10,000 women-years). 1 In postmenopausal women with documented heart disease (n=2,763), average 66.7 years of age, in a controlled clinical trial of secondary prevention of cardiovascular disease (Heart and Estrogen/Progestin Replacement Study [HERS]), treatment with daily CE (0.625 mg plus MPA (2.5 mg) demonstrated no cardiovascular benefit.
During an average follow-up of 4.1 years, treatment with CE plus MPA did not reduce the overall rate of CHD events in postmenopausal women with established CHD. There were more CHD events in the CE plus MPA-treated group than in the placebo group in year 1, but not during the subsequent years. Two thousand, three hundred and twenty‑one (2,321) women from the original HERS trial agreed to participate in an open label extension of HERS, HERS II.
Average follow-up in HERS II was an additional 2.7 years, for a total of 6.8 years overall. Rates of CHD events were comparable among women in the CE plus MPA group and the pl…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Cardiovascular Disorders [see Boxed Warning , Warnings and Precautions (5.1) ] Malignant Neoplasms [see Boxed Warning , Warnings and Precautions, (5.2) ] Most common adverse reactions (incidence ≥ 5 percent) are back pain, headache, pain in the extremity, nausea, diarrhea, gastroenteritis, insomnia, emotional lability, upper respiratory tract infection, sinusitis, nasopharyngitis, weight increase, breast pain, post-menopausal bleeding, uterine fibroid vaginal hemorrhage, ovarian cyst, endometrial thickening, viral infection, moniliasis genital, and accidental injury.
(6.1) To report SUSPECTED ADVERSE REACTIONS, contact Novo Nordisk Inc. at 1-888-824-4336 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Adverse reactions reported with Lopreeza 1 mg/0.5 mg by investigators in the Phase 3 studies regardless of causality assessment are shown in Table 1. TABLE 1 ALL TREATMENT-EMERGENT ADVERSE REACTIONS REGARDLESS OF RELATIONSHIP REPORTED AT A FREQUENCY OF ≥ 5 PERCENT WITH LOPREEZA 1 MG/0.5 MG Endometrial Hyperplasia Study (12-Months) Vasomotor Symptoms Study (3-Months) Osteoporosis Study (2-Years) Lopreeza 1 mg/0.5 mg 1 mg E 2 Lopreeza 1 mg/0.5 mg Placebo Lopreeza 1 mg/0.5 mg Placebo (n=295) (n=296) (n=29) (n=34) (n=47) (n=48) Body as a Whole Back Pain 6% 5% 3% 3% 6% 4% Headache 16% 16% 17% 18% 11% 6% Digestive System Nausea 3% 5% 10% 0% 11% 0% Gastroenteritis 2% 2% 0% 0% 6% 4% Nervous System Insomnia 6% 4% 3% 3% 0% 8% Emotional Lability 1% 1% 0% 0% 6% 0% Respiratory System Upper Respiratory Tract Infection 18% 15% 10% 6% 15% 19% Sinusitis 7% 11% 7% 0% 15% 10% Metabolic and Nutritional Weight Increase 0% 0% 0% 0% 9% 6% Urogenital System Breast Pain 24% 10% 21% 0% 17% 8% Post-Menopausal Bleeding 5% 15% 10% 3% 11% 0% Uterine Fibroid 5% 4% 0% 0% 4% 8% Ovarian Cyst 3% 2% 7% 0% 0% 8% Resistance Mechanism Infection Viral 4% 6% 0% 3% 6% 6% Moniliasis Genital 4% 7% 0% 0% 6% 0% Secondary Terms Injury Accidental 4% 3% 3% 0% 17%* 4%* Other Events 2% 3% 3% 0% 6% 4% * including one upper extremity fracture in each group Adverse reactions reported with Lopreeza 0.5 mg/0.1 mg by investigators during the Phase 3 study regardless of causality assessment are shown in Table 2.
TABLE 2 ALL TREATMENT-EMERGENT ADVERSE REACTIONS REGARDLESS OF RELATIONSHIP REPORTED AT A FREQUENCY OF ≥ 5 PERCENT WITH LOPREEZA
0.5MG/0.1 MG Lopreeza 0.5 mg/0.1 mg Placebo (n=194) (n=200) Body as a Whole Back Pain 10% 4% Headache 22% 19% Pain in extremity 5% 4% Digestive System Nausea 5% 4% Diarrhea 6% 6% Respiratory System Nasopharyngitis 21% 18% Urogenital System Endometrial thickening 10% 4% Vaginal hemorrhage 26% 12% 6 . 2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of Lopreeza. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Genitourinary System Changes in vaginal bleeding pattern and abnormal withdrawal bleeding or flow; breakthrough bleeding; spotting; dysmenorrhea, increase in size of uterine leiomyomata; vaginitis, including vaginal candidiasis; change in amount of cervical secretion; changes in cervical ectropion; pre-menstrual-like syndrome; cystitis-like syndrome; ovarian cancer; endometrial hyperplasia; endometrial cancer. Breast Tenderness, enlargement, pain, nipple discharge, galactorrhea; fibrocystic breast changes; breast cancer.
Cardiovascular Deep and superficial venous thrombosis; pulmonary embolism; thrombophlebitis; myocardial infarction, stroke; increase…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Coadministration of estradiol with norethindrone acetate did not elicit any apparent influence on the pharmacokinetics of norethindrone acetate. Similarly, no relevant interaction of norethindrone acetate on the pharmacokinetics of estradiol was found within the NETA dose range investigated in a single dose study. Inducers and/or inhibitors of CYP3A4 may affect estrogen drug metabolism (7.1)
7.1Metabolic Interactions Estradiol In-vitro and in-vivo studies have shown that estrogens are metabolized partially by cytochrome P450 3A4 (CYP3A4). Therefore, inducers or inhibitors of CYP3A4 may affect estrogen drug metabolism. Inducers of CYP3A4 such as St.
John’s wort ( Hypericum perforatum ) preparations, phenobarbital, carbamazepine, and rifampin may reduce plasma concentrations of estrogens, possibly resulting in a decrease in therapeutic effects and/or changes in the uterine bleeding profile. Inhibitors of CYP3A4 such as erythromycin, clarithromycin, ketoconazole, itraconazole, ritonavir and grapefruit juice may increase plasma concentrations of estrogens and result in side effects. Norethindrone Acetate Drugs or herbal products that induce or inhibit cytochrome P-450 enzymes, including CYP3A4, may decrease or increase the serum concentrations of norethindrone.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Nursing Mothers: Estrogen administration to nursing women has been shown to decrease the quantity and quality of breast milk (8.3) Geriatric Use: An increase risk of probable dementia in women over 65 years of age was reported in the Women’s Health Initiative Memory ancillary studies of the Women’s Health Initiative (5.3, 8.5)
8.1Pregnancy Lopreeza should not be used during pregnancy [see Contraindications (4) ]. There appears to be little or no increased risk of birth defects in children born to women who have used estrogens and progestins as an oral contraceptive inadvertently during early pregnancy.
8.3Nursing Mothers Lopreeza should not be used during lactation. Estrogen administration to nursing women has been shown to decrease the quantity and quality of the breast milk. Detectable amounts of estrogen and progestin have been identified in the breast milk of women receiving estrogen plus progestin therapy. Caution should be exercised when Lopreeza is administered to a nursing woman.
8.4Pediatric Use Lopreeza is not indicated in children. Clinical studies have not been conducted in the pediatric population.
8.5Geriatric Use There have not been sufficient numbers of geriatric women involved in clinical studies utilizing Lopreeza to determine whether those over 65 years of age differ from younger subjects in their response to Lopreeza. The Women’s Health Initiative Studies In the WHI estrogen plus progestin substudy (daily CE [0.625 mg] plus MPA [2.5 mg] versus placebo), there was a higher relative risk of nonfatal stroke and invasive breast cancer in women greater than 65 years of age [see Clinical Studies (14.5) ] . In the WHI estrogen-alone substudy (daily CE [0.625 mg]-alone versus placebo), there was a higher relative risk of stroke in women greater than 65 years of age [see Clinical Studies (14.5) ] .
The Women’s Health Initiative Memory Study In the WHIMS ancillary studies of postmenopausal women 65 to 79 years of age, there was an increased risk of developing probable dementia in women receiving estrogen plus progestin or estrogen-alone when compared to placebo. It is unknown whether this finding applies to younger postmenopausal women [see Warnings and Precautions (5.3) , and Clinical Studies (14.6) ] . Since both ancillary studies were conducted in women 65 to 79 years of age, it is unknown whether these findings apply to younger postmenopausal women 8 [see Warnings and Precautions (5.3) , and Clinical Studies (14.6) ] .
8.6Renal Impairment The effect of renal impairment on the pharmacokinetics of Lopreeza has not been studied.
8.7Hepatic Impairment The effect of hepatic impairment on the pharmacokinetics of Lopreeza has not been studied.
🤰 Pregnancy ▾
8.1Pregnancy Lopreeza should not be used during pregnancy [see Contraindications (4) ]. There appears to be little or no increased risk of birth defects in children born to women who have used estrogens and progestins as an oral contraceptive inadvertently during early pregnancy.
🧒 Pediatric Use ▾
8.4Pediatric Use Lopreeza is not indicated in children. Clinical studies have not been conducted in the pediatric population.
🧓 Geriatric Use ▾
8.5Geriatric Use There have not been sufficient numbers of geriatric women involved in clinical studies utilizing Lopreeza to determine whether those over 65 years of age differ from younger subjects in their response to Lopreeza. The Women’s Health Initiative Studies In the WHI estrogen plus progestin substudy (daily CE [0.625 mg] plus MPA [2.5 mg] versus placebo), there was a higher relative risk of nonfatal stroke and invasive breast cancer in women greater than 65 years of age [see Clinical Studies (14.5) ] . In the WHI estrogen-alone substudy (daily CE [0.625 mg]-alone versus placebo), there was a higher relative risk of stroke in women greater than 65 years of age [see Clinical Studies (14.5) ] .
The Women’s Health Initiative Memory Study In the WHIMS ancillary studies of postmenopausal women 65 to 79 years of age, there was an increased risk of developing probable dementia in women receiving estrogen plus progestin or estrogen-alone when compared to placebo. It is unknown whether this finding applies to younger postmenopausal women [see Warnings and Precautions (5.3) , and Clinical Studies (14.6) ] . Since both ancillary studies were conducted in women 65 to 79 years of age, it is unknown whether these findings apply to younger postmenopausal women 8 [see Warnings and Precautions (5.3) , and Clinical Studies (14.6) ] .
🆘 Overdosage ▾
10 OVERDOSAGE Overdosage of estrogen plus progestin may cause nausea, vomiting, breast tenderness, abdominal pain, drowsiness and fatigue, and withdrawal bleeding may occur in women. Treatment of overdose consists of discontinuation of Lopreeza therapy with institution of appropriate symptomatic care.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Endogenous estrogens are largely responsible for the development and maintenance of the female reproductive system and secondary sexual characteristics. Although circulating estrogens exist in a dynamic equilibrium of metabolic interconversions, estradiol is the principal intracellular human estrogen and is substantially more potent than its metabolites, estrone and estriol, at the receptor level. The primary source of estrogen in normally cycling adult women is the ovarian follicle, which secretes 70 to 500 mcg of estradiol daily, depending on the phase of the menstrual cycle.
After menopause, most endogenous estrogen is produced by conversion of androstenedione, secreted by the adrenal cortex, to estrone in the peripheral tissues. Thus, estrone and the sulfate-conjugated form, estrone sulfate, are the most abundant circulating estrogens in postmenopausal women. Estrogens act through binding to nuclear receptors in estrogen-responsive tissues.
To date, two estrogen receptors have been identified. These vary in proportion from tissue to tissue. Circulating estrogens modulate the pituitary secretion of the gonadotropins, luteinizing hormone (LH), and FSH through a negative feedback mechanism.
Estrogens act to reduce the elevated levels of these hormones seen in postmenopausal women. Progestin compounds enhance cellular differentiation and generally oppose the actions of estrogens by decreasing estrogen receptor levels, increasing local metabolism of estrogens to less active metabolites, or inducing gene products that blunt cellular responses to estrogen. Progestins exert their effects in target cells by binding to specific progesterone receptors that interact with progesterone response elements in target genes.
Progesterone receptors have been identified in the female reproductive tract, breast, pituitary, hypothalamus, and central nervous system.
12.2Pharmacodynamics There are no pharmacodynamic data known for Lopreeza tablets.
12.3Pharmacokinetics Absorption Estradiol Estradiol is absorbed through the gastrointestinal tract. Following oral administration of Lopreeza tablets, peak plasma estradiol concentrations are reached within 5 to 8 hours. The oral bioavailability of estradiol following administration of Lopreeza 1 mg/0.5 mg when compared to a combination oral solution is 53%.
Administration of Lopreeza 1 mg/0.5 mg with food did not modify the bioavailability of estradiol. Norethindrone Acetate After oral administration, norethindrone acetate is absorbed and transformed to norethindrone. Norethindrone reaches a peak plasma concentration within 0.5 to 1.5 hours after the administration of Lopreeza tablets.
The oral bioavailability of norethindrone following administration of Lopreeza 1 mg/0.5 mg when compared to a combination oral solution is 100%. Administration of Lopreeza 1 mg/0.5 mg with food increases norethindrone AUC 0-72 by 19% and decreases C max by 36%. The pharmacokinetic parameters of estradiol (E 2 ), estrone (E 1 ), and norethindrone (NET) following oral administration of 1 Lopreeza 1 mg/0.5 mg or 2 Lopreeza 0.5 mg/0.1 mg tablet(s) to healthy postmenopausal women are summarized in Table 3.
TABLE 3 PHARMACOKINETIC PARAMETERS AFTER ADMINISTRATION OF 1 TABLET OF LOPREEZA 1 MG/0.5 MG OR 2 TABLETS OF LOPREEZA
0.5MG/0.1 MG TO HEALTHY POSTMENOPAUSAL WOMEN 1 x Lopreeza 1 mg/0.5 mg (n=24) 2 x Lopreeza 0.5 mg/0.1 mg (n=24) Mean a (%CV) b Mean a (%CV) b Estradiol c (E 2 ) AUC 0-t (pg/mL*h) 766.5 (48) 697.3 (53) C max (pg/mL) 26.8 (36) 26.5 (37) t max (h): median (range) 6.0 (0.5-16.0) 6.5 (0.5-16.0) t 1/2 (h) d 14.0 e (29) 14.5 f (27) Estrone c (E 1 ) AUC 0-t (pg/mL*h) 4469.1 (48) 4506.4 (44) C max (pg/mL) 195.5 (37) 199.5 (30) t max (h): median (range) 6.0 (1.0-9.0) 6.0 (2.0-9.0) t 1/2 (h) d 10.7 (44) g 11.8 (25) g Norethindrone (NET) AUC 0-t (pg/mL*h) 21043 (41) 8407.2 (43) C max (pg/mL) 5249.5 (47) 2375.4 (41) t max (h) : median (range) 0.7 (0.7-1.25) 0.8 (0.7-1.3)…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Endogenous estrogens are largely responsible for the development and maintenance of the female reproductive system and secondary sexual characteristics. Although circulating estrogens exist in a dynamic equilibrium of metabolic interconversions, estradiol is the principal intracellular human estrogen and is substantially more potent than its metabolites, estrone and estriol, at the receptor level. The primary source of estrogen in normally cycling adult women is the ovarian follicle, which secretes 70 to 500 mcg of estradiol daily, depending on the phase of the menstrual cycle.
After menopause, most endogenous estrogen is produced by conversion of androstenedione, secreted by the adrenal cortex, to estrone in the peripheral tissues. Thus, estrone and the sulfate-conjugated form, estrone sulfate, are the most abundant circulating estrogens in postmenopausal women. Estrogens act through binding to nuclear receptors in estrogen-responsive tissues.
To date, two estrogen receptors have been identified. These vary in proportion from tissue to tissue. Circulating estrogens modulate the pituitary secretion of the gonadotropins, luteinizing hormone (LH), and FSH through a negative feedback mechanism.
Estrogens act to reduce the elevated levels of these hormones seen in postmenopausal women. Progestin compounds enhance cellular differentiation and generally oppose the actions of estrogens by decreasing estrogen receptor levels, increasing local metabolism of estrogens to less active metabolites, or inducing gene products that blunt cellular responses to estrogen. Progestins exert their effects in target cells by binding to specific progesterone receptors that interact with progesterone response elements in target genes.
Progesterone receptors have been identified in the female reproductive tract, breast, pituitary, hypothalamus, and central nervous system.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING
16.1How Supplied Lopreeza 1 mg/0.5 mg is a white, film-coated tablet, engraved with NOVO 288 on one side and the APIS bull on the other. It is round, 6mm in diameter and bi-convex. (NDC 69238-1251-6).
It is supplied as 28 tablets in a calendar dial pack dispenser. Lopreeza 0.5 mg/0.1 mg is a white, film-coated tablet, engraved with NOVO 291 on one side and the APIS bull on the other. It is round, 6mm in diameter and bi-convex.
(NDC 69238-1252-6). It is supplied as 28 tablets in a calendar dial pack dispenser.
16.2Storage and Handling Store in a dry place protected from light. Store at 20°C to 25°C (68°F to 77°F), excursions permitted to 15°C to 30°C (59°F to 86°F).
📋 Description ▾
11 DESCRIPTION Lopreeza 1 mg/0.5 mg is a single tablet for oral administration containing 1 mg of estradiol and 0.5 mg of norethindrone acetate and the following excipients: lactose monohydrate, starch (corn), copovidone, talc, magnesium stearate, hypromellose and triacetin. Lopreeza 0.5 mg/0.1 mg is a single tablet for oral administration containing 0.5 mg of estradiol and 0.1 mg of norethindrone acetate and the following excipients: lactose monohydrate, starch (corn), hydroxypropylcellulose, talc, magnesium stearate, hypromellose and triacetin.
Estradiol (E 2 ), an estrogen, is a white or almost white crystalline powder. Its chemical name is estra-1, 3, 5 (10)-triene-3, 17β-diol hemihydrate with the empirical formula of C 18 H 24 O 2 ,½ H 2 O and a molecular weight of 281.4. The structural formula of E 2 is as follows: Estradiol Norethindrone acetate (NETA), a progestin, is a white or yellowish-white crystalline powder.
Its chemical name is 17β-acetoxy-19-nor-17α -pregn-4-en-20-yn-3-one with the empirical formula of C 22 H 28 O 3 and molecular weight of 340.5. The structural formula of NETA is as follows: Norethindrone Acetate estradiol chem structure noreth acetate chem structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION See FDA-approved patient labeling ( Patient Information )
17.1Abnormal Vaginal Bleeding Inform postmenopausal women of the importance of reporting abnormal vaginal bleeding to their healthcare provider as soon as possible [see Warnings and Precautions (5.2) ] .
17.2Possible Serious Adverse Reactions with Estrogen Plus Progestin Therapy Inform postmenopausal women of possible serious adverse reactions of estrogen plus progestin therapy including Cardiovascular Disorders, Malignant Neoplasms, and Probable Dementia [see Warnings and Precautions (5.1, 5.2, 5.3) ] .
17.3Possible Less Serious but Common Adverse Reactions with Estrogen Plus Progestin Therapy Inform postmenopausal women of possible less serious but common adverse reactions of estrogen plus progestin therapy such as headache, breast pain and tenderness, nausea and vomiting. Rx Only Lopreeza ® is a registered trademark owned by Amneal Pharmaceuticals ©2016 Amneal Pharmaceuticals Rev. 11-2017-03 For information contact: Amneal Pharmaceuticals 1-877-835-5472 www.amneal.com Manufactured by: Novo Nordisk A/S 2880 Bagsvaerd, Denmark Distributed by: Amneal Pharmaceuticals LLC Bridgewater, NJ 08807