Provera 2.5mg Tablets

Manufacturer PFIZER Active Ingredient Medroxyprogesterone Tablets(me DROKS ee proe JES te rone) Pronunciation me DROKS ee proe JES te rone
WARNING: Hormone therapy (HT):Do not use this drug with an estrogen to prevent heart disease or dementia. A study of women taking an estrogen with a progestin showed a raised chance of heart attack, stroke, breast cancer, a blood clot, and dementia. Use this drug for the shortest time needed at the lowest useful dose. Your doctor will talk with you on a regular basis to see if you need to keep taking this drug. @ COMMON USES: It is used to lower the chance of endometrial changes after menopause in people who are getting estrogen therapy.It is used to treat uterine bleeding due to hormonal imbalance.It is used to treat people who do not have a monthly period cycle.It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Progestin
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Pharmacologic Class
Progestin
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Pregnancy Category
Category X
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FDA Approved
Sep 1959
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Medroxyprogesterone is a synthetic hormone similar to progesterone, which is naturally produced by the body. It's often used in women who are taking estrogen to help prevent problems with the lining of the uterus, or to help regulate menstrual cycles.
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How to Use This Medicine

Taking Your Medication Correctly
To get the most benefit from your medication, it's essential to use it as directed by your doctor. Carefully read all the information provided with your prescription, and follow the instructions closely. To maintain the effectiveness of your treatment, make every effort not to miss any doses.

Storing and Disposing of Your Medication
Keep your medication at room temperature in a dry location, avoiding storage in a bathroom. Ensure that all medications are stored in a safe place, out of the reach of children and pets. When disposing of unused or expired medication, do not flush it down the toilet or pour it down the drain unless specifically instructed to do so. Instead, consult with your pharmacist for guidance on the proper disposal method. You may also want to inquire about potential drug take-back programs in your area.

What to Do If You Miss a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. It's crucial to avoid taking two doses at the same time or taking extra doses, as this can increase the risk of adverse effects.
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Lifestyle & Tips

  • Maintain regular follow-up appointments with your doctor.
  • Report any unusual vaginal bleeding or other concerning symptoms immediately.
  • Discuss all medications, supplements, and herbal products you are taking with your doctor.
  • Do not smoke, especially if you are taking this medication for hormone therapy, as smoking increases the risk of blood clots and other serious side effects.
  • Engage in regular physical activity and maintain a healthy diet.
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Available Forms & Alternatives

Dosing & Administration

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Adult Dosing

Standard Dose: 2.5 mg orally once daily (for continuous combined hormone therapy)
Dose Range: 2.5 - 10 mg

Condition-Specific Dosing:

Postmenopausal Hormone Therapy (Continuous Combined): 2.5 mg orally once daily
Postmenopausal Hormone Therapy (Sequential): 5-10 mg orally once daily for 10-14 consecutive days of a 28-day cycle
Secondary Amenorrhea: 5-10 mg orally once daily for 5-10 days
Abnormal Uterine Bleeding (Dysfunctional): 5-10 mg orally once daily for 5-10 days
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Not established
Adolescent: Not established (except for specific indications like precocious puberty, not typically with 2.5mg dose)
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Dose Adjustments

Renal Impairment:

Mild: No specific adjustment recommended
Moderate: No specific adjustment recommended
Severe: No specific adjustment recommended
Dialysis: Not significantly dialyzable; no specific adjustment recommended

Hepatic Impairment:

Mild: Use with caution
Moderate: Use with caution; consider lower doses
Severe: Contraindicated in severe hepatic dysfunction

Pharmacology

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Mechanism of Action

Medroxyprogesterone acetate (MPA) is a synthetic progestin. It acts on the estrogen-primed endometrium, converting it from a proliferative to a secretory state. It also inhibits pituitary gonadotropin secretion (LH and FSH), which can prevent ovulation. In hormone therapy, it is used to counteract the estrogen-induced proliferation of the endometrium, thereby reducing the risk of endometrial hyperplasia and carcinoma.
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Pharmacokinetics

Absorption:

Bioavailability: 10-50%
Tmax: 2-4 hours
FoodEffect: Food may increase bioavailability

Distribution:

Vd: 20 Âą 3 L
ProteinBinding: Approximately 90% (primarily to albumin, not SHBG)
CnssPenetration: Limited

Elimination:

HalfLife: 12-17 hours (oral)
Clearance: Not available
ExcretionRoute: Primarily urine (as glucuronide conjugates), some fecal excretion
Unchanged: <1% (urine)
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Pharmacodynamics

OnsetOfAction: Hours to days (for endometrial effects)
PeakEffect: Days to weeks (for full therapeutic effect)
DurationOfAction: Approximately 24 hours (for daily dosing)

Safety & Warnings

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BLACK BOX WARNING

WARNING: CARDIOVASCULAR DISORDERS, BREAST CANCER, PROBABLE DEMENTIA

Estrogens and progestins should not be used for the prevention of cardiovascular disease or dementia.

Cardiovascular Disorders and Probable Dementia
The Women's Health Initiative (WHI) study reported increased risks of stroke, deep vein thrombosis (DVT), pulmonary embolism (PE), and myocardial infarction (MI) in postmenopausal women receiving daily oral conjugated estrogens (CE) plus medroxyprogesterone acetate (MPA) compared to placebo. The WHI Memory Study (WHIMS), a substudy of WHI, reported an increased risk of probable dementia in postmenopausal women 65 years of age or older receiving CE plus MPA compared to placebo. It is unknown whether these findings apply to younger postmenopausal women.

Breast Cancer
The WHI study reported an increased risk of invasive breast cancer in postmenopausal women receiving daily oral CE plus MPA compared to placebo.
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Side Effects

Serious Side Effects: Seek Medical Help Immediately

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek medical attention right away:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of liver problems, including:
+ Dark urine
+ Tiredness
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Neurological symptoms, such as:
+ Weakness on one side of the body
+ Trouble speaking or thinking
+ Change in balance
+ Drooping on one side of the face
+ Blurred eyesight
Eye problems, including:
+ Changes in vision or loss of vision
+ Bulging eyes
+ Changes in how contact lenses feel
Breast changes, such as:
+ A lump in the breast
+ Breast pain or soreness
+ Nipple discharge
Vaginal symptoms, including:
+ Itching or discharge
+ Abnormal vaginal bleeding
Mood changes, such as:
+ Depression
+ Other mood changes
Seizures
Fluid retention, which may cause:
+ Swelling
+ Weight gain
+ Trouble breathing
Signs of a blood clot, including:
+ Chest pain or pressure
+ Coughing up blood
+ Shortness of breath
+ Swelling, warmth, numbness, change of color, or pain in a leg or arm
+ Trouble speaking or swallowing
Signs of high blood pressure, such as:
+ Severe headache
+ Dizziness
+ Passing out
+ Changes in vision
Signs of gallbladder problems, including:
+ Pain in the upper right belly area, right shoulder area, or between the shoulder blades
+ Yellow skin or eyes
+ Fever with chills
+ Bloating
+ Severe upset stomach or vomiting
Signs of pancreatitis, such as:
+ Severe stomach pain
+ Severe back pain
+ Severe upset stomach or vomiting
Signs of low calcium levels, including:
+ Muscle cramps or spasms
+ Numbness and tingling
+ Seizures
Memory problems or loss
Feeling confused

Other Possible Side Effects

Like all medications, this drug can cause side effects. Many people experience no side effects or only mild ones. If you notice any of the following side effects, contact your doctor or seek medical attention if they bother you or do not go away:

Weight gain or loss
Headache
Dizziness
Drowsiness
Fatigue
Weakness
Nervousness
Excitability
Upset stomach or vomiting
Bloating
Changes in sex interest
Acne
Hair loss
Hair growth
Enlarged breasts
Tender breasts
Vaginal bleeding or spotting
Stomach pain
Trouble sleeping
Changes in menstrual cycle or absence of periods

Hormone Therapy (HT) Specific Side Effects

Stomach cramps
Joint pain
* Leg cramps

Reporting Side Effects

If you experience any side effects, you can report them to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch. You can also contact your doctor for medical advice about side effects.
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Seek Immediate Medical Attention If You Experience:

  • Sudden severe headache
  • Sudden vision changes (e.g., blurred vision, loss of vision)
  • Numbness or weakness in the face, arm, or leg, especially on one side of the body
  • Trouble speaking or understanding speech
  • Chest pain or heaviness
  • Shortness of breath
  • Coughing up blood
  • Pain, swelling, or warmth in the leg (especially calf or thigh)
  • Yellowing of the skin or eyes (jaundice)
  • Dark urine or light-colored stools
  • New breast lump or changes in existing breast lumps
  • Unusual or prolonged vaginal bleeding
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reaction you experienced, including the symptoms that occurred.
A history of certain health conditions, including:
+ Bleeding disorders
+ Blood clots or an increased risk of blood clots
+ Breast cancer or other types of cancer
+ Liver disease
+ Heart attack
+ Stroke
+ Tumors that are sensitive to estrogen or progesterone
Unexplained vaginal bleeding
If you are breastfeeding or plan to breastfeed
* If you are pregnant or think you may be pregnant. Note: This medication should not be taken during pregnancy.

Additionally, it is crucial to discuss all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. This will help ensure that it is safe to take this medication with your other medications and health conditions. Do not start, stop, or change the dose of any medication without first consulting your doctor.
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Precautions & Cautions

Important Warnings and Cautions

Before taking this medication, inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are using this drug. Your doctor may instruct you to stop taking this medication before certain surgical procedures. If you need to stop taking this medication, your doctor will advise you on when to resume treatment after your surgery or procedure.

Risk of Blood Clots

This medication may increase the risk of blood clots, which can be life-threatening. Blood clots can occur in the form of heart attack, stroke, or clots in the leg, lung, or eye. If you have a history of blood clots, inform your doctor. Additionally, if you will be immobile for an extended period, such as during long trips, bedrest after surgery, or illness, discuss this with your doctor, as it may increase your risk of blood clots.

Monitoring and Precautions

If you have diabetes, closely monitor your blood sugar levels. High triglyceride levels have been associated with this medication, so inform your doctor if you have a history of elevated triglycerides. Regularly undergo blood tests and bone density checks as directed by your doctor. Take calcium and vitamin D supplements as advised by your doctor.

Breast Cancer Risk

There may be an increased risk of breast cancer associated with this medication. Ensure you have regular breast exams, gynecology check-ups, and perform breast self-exams as instructed by your doctor.

Lab Tests and Skin Effects

This medication may affect certain laboratory tests, so inform all your healthcare providers and lab workers that you are taking this drug. Additionally, this medication may cause dark skin patches on your face, so avoid sun exposure, sunlamps, and tanning beds. Use sunscreen and protective clothing and eyewear to minimize sun exposure.

Special Considerations

If you are 65 or older, use this medication with caution, as you may be more susceptible to side effects.

Hormone Therapy (HT) Considerations

Drugs like this one have been associated with high blood pressure. Regularly check your blood pressure as directed by your doctor. Certain side effects, such as heart attack, stroke, breast cancer, and others, have been reported in people taking estrogen with progestin. The risk of these side effects may vary depending on factors like treatment duration, estrogen use with or without progestin, and other individual factors. Discuss the benefits and risks of using this medication with your doctor.
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Overdose Information

Overdose Symptoms:

  • Nausea
  • Vomiting
  • Drowsiness
  • Dizziness
  • Fatigue
  • Withdrawal bleeding

What to Do:

There is no specific antidote for medroxyprogesterone overdose. Treatment is symptomatic and supportive. In case of suspected overdose, contact a poison control center or emergency medical services immediately. Call 1-800-222-1222 for poison control.

Drug Interactions

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Major Interactions

  • Aminoglutethimide (may significantly decrease MPA plasma concentrations)
  • CYP3A4 inducers (e.g., Rifampin, Carbamazepine, Phenytoin, Phenobarbital, St. John's Wort - may decrease MPA efficacy)
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Moderate Interactions

  • CYP3A4 inhibitors (e.g., Ketoconazole, Itraconazole, Ritonavir, Clarithromycin - may increase MPA plasma concentrations)
  • Grapefruit juice (may increase MPA levels)
  • Corticosteroids (MPA may decrease corticosteroid clearance)
  • Cyclosporine (MPA may inhibit cyclosporine metabolism)
  • Anticoagulants (MPA may alter coagulation parameters, requiring monitoring)
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Minor Interactions

  • Laboratory tests (may affect thyroid function tests, coagulation tests, glucose tolerance tests)

Monitoring

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Baseline Monitoring

Complete medical history and physical examination

Rationale: To identify contraindications, risk factors (e.g., cardiovascular disease, breast cancer), and establish baseline health status.

Timing: Prior to initiation of therapy

Blood pressure

Rationale: To establish baseline and monitor for potential hypertension.

Timing: Prior to initiation of therapy

Breast examination and mammography

Rationale: To screen for breast cancer, especially important due to increased risk with HRT.

Timing: Prior to initiation of therapy and as clinically indicated

Lipid profile

Rationale: To assess cardiovascular risk factors.

Timing: Prior to initiation of therapy

Liver function tests

Rationale: To assess hepatic function, as MPA is metabolized in the liver.

Timing: Prior to initiation of therapy, especially in patients with suspected hepatic impairment

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Routine Monitoring

Annual physical examination

Frequency: Annually

Target: Normal

Action Threshold: Any significant changes or new symptoms

Blood pressure

Frequency: Regularly (e.g., every 3-6 months or as clinically indicated)

Target: <130/80 mmHg

Action Threshold: Sustained elevation (e.g., >140/90 mmHg) or significant increase from baseline

Breast examination and mammography

Frequency: Annually or as recommended by guidelines

Target: No suspicious findings

Action Threshold: New lumps, pain, nipple discharge, or abnormal mammogram findings

Vaginal bleeding patterns

Frequency: Ongoing

Target: Expected bleeding pattern (e.g., no bleeding with continuous combined HRT, predictable withdrawal bleeding with sequential)

Action Threshold: Unusual, prolonged, or recurrent vaginal bleeding (requires investigation to rule out endometrial pathology)

Glucose tolerance (in diabetic patients)

Frequency: Periodically

Target: Within target range for diabetes

Action Threshold: Significant increase in blood glucose levels

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Symptom Monitoring

  • Unusual vaginal bleeding or spotting
  • Breast lumps or pain
  • Severe headache or migraine
  • Vision changes (e.g., sudden partial or complete loss of vision, double vision)
  • Speech disturbances
  • Weakness or numbness in an arm or leg
  • Chest pain, shortness of breath, coughing up blood (signs of pulmonary embolism)
  • Pain, swelling, or redness in a leg (signs of deep vein thrombosis)
  • Yellowing of skin or eyes (jaundice)
  • Dark urine, light-colored stools (signs of liver problems)
  • Mood changes, depression
  • Memory loss or confusion (especially in older women)

Special Patient Groups

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Pregnancy

Contraindicated in pregnancy. Medroxyprogesterone acetate is classified as Pregnancy Category X. There is evidence of fetal risk based on human experience, and the risks of use in pregnant women clearly outweigh any possible benefits.

Trimester-Specific Risks:

First Trimester: Potential for congenital anomalies, including cardiovascular and limb defects, if exposure occurs during the first trimester. Risk of hypospadias in male fetuses.
Second Trimester: Not indicated for use during pregnancy. Continued exposure may lead to adverse effects.
Third Trimester: Not indicated for use during pregnancy. Continued exposure may lead to adverse effects.
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Lactation

Use with caution. Medroxyprogesterone is excreted in breast milk. While generally considered compatible with breastfeeding, observe the infant for any potential adverse effects (e.g., jaundice, breast enlargement). The American Academy of Pediatrics considers progestins compatible with breastfeeding.

Infant Risk: Low to moderate risk. Small amounts are excreted into breast milk. No adverse effects have been consistently reported in breastfed infants, but long-term effects are not fully established. May affect milk production, especially if initiated early postpartum.
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Pediatric Use

Safety and efficacy have not been established in pediatric patients for the indications typically treated with 2.5mg oral tablets (e.g., HRT). Not recommended for use in prepubertal girls. Higher doses are used for specific pediatric conditions like precocious puberty, but not the 2.5mg oral tablet.

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Geriatric Use

Use with caution. Women 65 years of age or older have an increased risk of probable dementia when receiving combined estrogen plus progestin therapy. Increased risk of stroke and DVT has also been observed in this population. Use the lowest effective dose for the shortest duration consistent with treatment goals and risks.

Clinical Information

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Clinical Pearls

  • Medroxyprogesterone 2.5mg is most commonly used as part of continuous combined hormone replacement therapy (HRT) to protect the endometrium from estrogen-induced hyperplasia in postmenopausal women with an intact uterus.
  • Always assess for contraindications (e.g., undiagnosed abnormal genital bleeding, breast cancer, active DVT/PE, severe liver disease) before initiating therapy.
  • Patients should be advised of the Black Box Warnings regarding cardiovascular events, breast cancer, and probable dementia, especially with long-term use in HRT.
  • Regular monitoring, including annual physical exams, breast exams, and mammograms, is crucial.
  • Any new or unusual vaginal bleeding should be promptly investigated to rule out endometrial pathology.
  • Consider the lowest effective dose for the shortest duration consistent with treatment goals and risks.
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Alternative Therapies

  • Other progestins (e.g., micronized progesterone, norethindrone)
  • Selective Estrogen Receptor Modulators (SERMs) for specific indications (e.g., tamoxifen, raloxifene)
  • Non-hormonal therapies for menopausal symptoms (e.g., SSRIs/SNRIs, gabapentin, clonidine)
  • For abnormal uterine bleeding: other hormonal therapies (e.g., oral contraceptives, IUDs), surgical options.
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Cost & Coverage

Average Cost: Varies, typically $15-$50 per 30 tablets
Generic Available: Yes
Insurance Coverage: Tier 1 or 2 (generic), Tier 3 (brand)
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General Drug Facts

If your symptoms or health issues persist or worsen, it's essential to contact your doctor for further guidance. To ensure your safety, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so be sure to check with your pharmacist for more information. If you have any questions or concerns about your medication, don't hesitate to reach out to your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When seeking help, be prepared to provide details about the medication taken, the amount, and the time it happened.