Dr. Arjun Srivastav What is Estraval Depot Injection?
Estraval Depot Injection contains estradiol valerate, a synthetic form of the naturally occurring hormone estrogen. It is used in hormone replacement therapy (HRT) for women and in certain cases for transgender hormone therapy.
Under specialist supervision, it may also be prescribed as part of gender-affirming hormone therapy for transgender women.
Manufacturer
Estraval Depot Injection is manufactured by Zydus Cadila Pharma, a leading Indian pharmaceutical company recognized for developing and manufacturing a wide range of prescription medicines.
Appearance
Estraval Depot Injection is supplied as a clear, sterile oily solution intended for intramuscular (IM) injection. It is typically packaged in a glass ampoule or vial, depending on the manufacturer.
Key Information About Estraval Depot Injection
| Category | Details |
| Generic Name | Estradiol Valerate |
| Chemical Class | Steroid Estrogen Derivative |
| Therapeutic Class | Hormonal Preparations |
| Action Class | Estrogen Receptor Agonist |
| Chemical Formula | C₂₃H₃₂O₃ |
| Prescription Required | Yes |
| Habit Forming | No |
Medical Uses of Estraval Depot Injection
It is mainly used to treat disorders that result from insufficient estrogen in the body:
Hormone Replacement Therapy (HRT)
It assists in alleviating moderate to severe menopause-related symptoms in females, like hot flashes, night sweats, mood changes, and vaginal distress.
Estrogen Deficiency
This is commonly used to treat people who have an insufficient amount of estrogen secreted by their ovaries.
Gender Affirming Hormone Therapy (GAHT)
It is commonly used in hormone therapy in transgender women to promote secondary female characteristics.
👉 Specific Cancers: In some cases, it can be used as a palliative therapy in treating some forms of hormone-responsive cancer of the prostate.
How Estraval Depot Injection Works?
Activation by the Body: Enzymes within the body, called esterases, do their job as it reaches your blood and tissues.
Targeting the Cells: After being activated, the estradiol travels through your bloodstream until it reaches the targeted cells with estrogen receptors.
This process is similar to using a key to unlock a lock:
- Within the brain: it regulates the hypothalamus (the body’s thermostat) to control the abrupt errors that lead to hot flashes and night sweats.
- Within tissues: It attaches to the receptors of the breast, skin, and fat tissue.
- Within feminine hormone therapy: it leads to the creation of secondary sexual characteristics of females.
- Within the bones: Estrogen prevents the loss of bone tissue that can occur due to reduced estrogen levels.
👉 The Hormone Curve: As a result of this method of delivery, you will experience a peak in your estrogen level a few days after the shot, followed by a gradual decrease within the next one to two weeks.
Important
Estraval Depot Injection is a long-acting estrogen therapy that gradually releases estradiol into the bloodstream, helping maintain stable hormone levels and providing prolonged symptom relief.
What are the Benefits of Estraval Depot Injection?
- Relief from menopausal symptoms, which helps to get rid of night flashes, sleep irregularities, and hot flashes at night.
- Gives relief from vaginal aridity, which makes sexual intercourse comfortable without irritation and pain.
- Helps in promoting female sexual characteristics in those who are using it for gender-affirming therapy.
- Reducing signs of abnormal male sexual characteristics in women, such as hair growth.
- Reducing the chances of osteoporosis.
Note: Estraval Depot Injection should only be used as prescribed by a healthcare professional.
Why Is Estraval Depot Injection Prescribed?
Estrogen Deficiency Treatment (Hypoestrogenism)
There exist people who have a natural deficiency of estrogen even before reaching the usual age when one experiences menopause. This is due to hypogonadism, primary ovarian insufficiency, or surgically induced menopause.
Osteoporosis in Post-Menopause Prevention
The hormone estrogen is highly significant in maintaining healthy bones through the balance of bone resorption and bone formation.
Palliative Therapy for Late-Stage Prostate Cancer
In selected cases, estrogen is used as the second-line treatment for late-stage androgen-dependent prostate cancer.
How Long Does Estraval Depot Injection Stay Effective?
An injection of Estraval Depot (estradiol valerate) usually lasts 2 to 3 weeks after the administration in one dose, with the effect lasting for up to 4 weeks based on the dosage.
How Does Estraval Depot Injection Help with Menopause Symptoms?
- Reducing hot flashes: Estraval Depot binds to the hypothalamus estrogen receptors and keeps estrogen levels normal.
- Reversing vaginal dryness: Estrogen ensures proper blood flow to the local tissues in the vaginal area, ensuring enough thickness and elasticity.
- Stabilizing mood swings: It ensures stabilization of other hormones in the brain, such as serotonin, ensuring that the woman does not deal with too much anxiety.
Who May Need Estraval Depot Injection?
Here is a list of females who may need the Estraval Depot injection-
- Those having menopausal and post-menopausal symptoms.
- Women with estrogen deficiency
- Primary ovarian insufficiency
- Those suffering from prostate cancer
Recommended Dosage
Here are the standard dosage guidelines for Estraval Depot injection for women with different health issues-
Managing menopausal and post-menopausal symptoms
- Usually, a dose of 10 mg to 20 mg is given every 3 to 4 weeks.
Gender-affirming hormonal therapy
- A dose of 2 mg to 10 mg is given every 5 to 7 days or even 10 to 14 days.
Prostate cancer
- A dose of 30 mg or more is given every 1 to 2 weeks.
What Happens If You Miss a Scheduled Injection?
Since you have to administer a single injection in almost 5 to 7 days, you can take your missed dose if you are late by a few days.
👉 However, if you remember and your next dose is just a few days away, skip it entirely. If in any kind of doubt, call the doctors for help.
Who Should Avoid Using Estraval Depot Injection?
When you have certain health issues
Do not use Estraval Depot Injection without medical advice if you have a history of:
- Deep Vein Thrombosis (DVT)
- Pulmonary Embolism (PE)
- Heart Attack (Myocardial Infarction)
- Stroke (Cerebrovascular Accident)
Hormone-Sensitive Cancers
Estraval Depot Injection should generally be avoided in people who have a history of or are currently diagnosed with:
- Breast cancer
- Endometrial (uterine) cancer
- Estrogen-dependent tumors or other hormone-sensitive cancers
⚠️ Warning: Avoid using Estraval Depot Injection if you have liver disorders, such as liver failure, fatty liver, and others.
Allergic tendency
If you are highly sensitive and have an allergic tendency, to Estradiol valvarate use in even a small amount of Estradiol valerate use can lead to instant allergic triggers like skin hives, fatigue, swelling of the face and throat.
Important Precautions before Use
Here is a list of some precautionary measures you need to follow-
Diagnostic tests
The doctors will conduct different diagnostic tests to ensure you are not suffering from health issues that can contraindicate the use of Estraval Depot injections. You have to go through-
- Cardiac health tests like ECG
- Blood tests to check your cholesterol levels.
- Liver function test
- Cancer screenings
- Avoid using certain medicines.
Adjusting the dose of certain medicines
The doctors may recommend that you adjust the dose of certain medicines during the term of using this injection, such as-
- Thyroid medicines
- Liver enzyme inducers
- Diabetes medicines
Myths and Facts about Hormone Therapy
Myths: Hormonal therapy causes breast cancer
- Facts: The risk of breast cancer due to hormonal therapy is not severely high. As per studies, the risk only increases when synthetic progestins are added.
Myths: HRT is terrible for your heart
- Facts: This is wrong because, in most cases, undergoing HRT early on in your life, within the 40s or 50s, does not increase the risk of heart disorders.
Patient Safety Guidelines
Follow the dosage schedule: Estraval Depot injection is only beneficial when the patient uses it as per a specific course recommended by the doctors. If you are not taking the doses on time nit may have no effects.
Taking the injection the right way: Administering the injection in the right way in the subcutaneous muscles is the right way. If you don’t know the right way to use the syringe, it is better to seek help from the doctors.
Drug Interactions to Know
Drugs that increase the metabolic rate of estradiol
Medicines that increase the effects of liver enzyme CYP3A4, such as Carbamazepine, Phenytoin, Rifampin, Rifabutin, and herbal medicines like St. John’s Wort.
Liver enzyme inhibitors
In the same way, any medicine that inhibits the CYP3A4 liver enzyme can lead to toxicity of estradiol in your body.
This includes medicines like ketoconazole, itraconazole, erythromycin, clarithromycin, and even grape juice.
Hypothyroidism medicine management
If you have low thyroid hormone and take medicines for it, then you need to increase the dose of the medicine you are using, like Levothyroxine, or else your thyroid may reduce when using Estraval Depot injection.
When to Consult a Healthcare Professional?
Go to a doctor urgently when you have side effects like-
- Signs of deep vein thrombosis, pulmonary embolism
- Signs of stroke or heart attack
- Unexplained vaginal bleeding
- Severe abdominal pain
For adjustment of your dose, and have symptoms like-
- Signs of fluid retention
- Mood disruptions
- Signs of estrogen excess
Why Choose Estraval Depot Injection?
Choose the Estraval Depot injection over because of the following benefits-
- Freedom from daily use
- Lower risk of blood clots
- Higher efficiency due to its direct intramuscular administration
- Easy availability
Storage, Handling, and Disposal Information
Store the Estraval Depot (Estradiol Valerate) injection inside a fridge and maintain conditions of 2 to 8 degrees Celsius.
As you are about to administer the injection, use it with care and avoid pricking it somewhere else. Dispose of the injection once it is used.
FAQs
How often should Estraval Depot Injection be taken?
This is normally dependent on the condition you are suffering from.
Does Estraval Depot Injection support bone health?
Yes, it increases bone density and reduces the risk of osteoarthritis and osteoporosis.
Is injectable estrogen safer than pills?
Use of injectable estrogen can be safer than the use of medicines if the woman is suffering from systemic cardiac side effects.
How long should a woman stay on estradiol?
Most women can stay on estradiol administration for up to 3 to 5 years.
What not to do while on injectable estrogen?
Avoid smoking or using nicotine products, make sure you are injecting them at separate sites to avoid skin complications.
Should a 65-year-old woman take estrogen?
There is no specific age limit when a woman can no longer take estrogen replacement therapy.
Can I use Estraval Depot Injection during pregnancy?
No, it is not safe for use in pregnant mothers. During pregnancy, your estrogen levels increase on their own.
Do I need regular checkups during treatment?
Yes, you have to go to the doctor for regular health checkups during the treatment of Estraval Depot injection.
Is Estraval Depot Injection safe for everyone?
It is only safe for adult women however if you have certain health conditions it is unsafe.
Do estradiol injections cause weight gain?
No, it does not cause weight gain, as it helps in redistribution of fats throughout the body.
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