| Dose | Size & Price | Qty |
|---|
| Fact Table | |
|---|---|
| Formula | C18H24O2 |
| License | FDA approved (2018) |
| Bioavailability | Low systemic absorption when administered vaginally (local effect predominant) |
| Legal status | Prescription only (Rx) |
| Chemical Name | (17ß)-estra-1,3,5(10)-triene-3,17-diol |
| Elimination half-life | ~13–20 hours (estradiol; systemic) |
| Dosage (Strength) | 4 mcg or 10 mcg vaginal inserts; once daily for 2 weeks, then twice weekly |
| Pregnancy | Contraindicated in pregnancy |
| Brands | Imvexxy |
| Protein binding | ~98% (primarily to sex hormone–binding globulin and albumin) |
| PubChem CID | 5757 |
| MedlinePlus | a682922 |
| ChEBI | 16469 |
| ATC code | G03CA03 |
| DrugBank | DB00783 |
| KEGG | D00525 |
| Routes of administration | Vaginal (softgel insert) |
Imvexxy is an estrogen hormone therapy used to treat moderate to severe painful intercourse caused by vaginal changes after menopause. The medication works by placing estradiol directly in the vaginal tissues, which helps restore moisture and thickness that can decline during menopause. Imvexxy is available as small, tear-shaped vaginal inserts in two strengths: 4 mcg and 10 mcg of estradiol.
This medication is administered intravaginally by inserting 1 vaginal insert daily for the first 2 weeks. After this initial period, the dosage changes to 1 insert twice weekly.
To use Imvexxy, remove 1 insert from the foil package and place it as far back in the vagina as it'll comfortably go, using a finger. The insert doesn't need an applicator. If a dose is missed during the twice-weekly schedule, insert it as soon as remembered, then return to the regular schedule for the next dose.
The active ingredient in this drug is estradiol.
Avoid taking or using this medication if any of the following apply:
Common side effects of Imvexxy include:
These effects are usually mild and often improve as your body adjusts to treatment. Breast soreness and headaches are among the most frequently reported symptoms. If these side effects are persistent, bothersome, or get worse over time, check in with your healthcare provider.
More serious but less common side effects can occur with estrogen therapy, including heart attack, stroke, blood clots, and certain types of cancer, such as breast, ovarian, or uterine cancer. Other potential risks include gallbladder disease, liver problems, high blood pressure, changes in calcium or thyroid levels, dementia, and worsening swelling of the face or tongue in women with a history of angioedema. Seek medical advice if you experience new breast lumps, unusual vaginal bleeding, sudden vision or speech changes, or severe new headaches.
What is Imvexxy used for?
Imvexxy is a prescription vaginal insert containing estradiol, a form of estrogen. It is primarily used to treat moderate to severe vaginal dryness and painful intercourse (dyspareunia), which are symptoms of vulvar and vaginal atrophy due to menopause.
How does Imvexxy work?
Imvexxy works by delivering low doses of estradiol directly into the vaginal tissue, helping to restore the natural thickness, elasticity, and moisture of the vaginal walls. This local effect helps relieve discomfort caused by thinning of the vaginal lining during menopause.
How should I use Imvexxy?
Imvexxy is inserted into the vagina using a finger, without the need for an applicator. The typical regimen starts with one insert daily for two weeks, followed by one insert twice a week. Always follow the specific dosing schedule prescribed by your healthcare provider.
What are the most common side effects of Imvexxy?
Common side effects may include headache, vaginal discharge, yeast infections, or irritation. Because it contains estrogen, Imvexxy may also carry risks similar to other hormone therapies, although at much lower levels due to its localized use.
Is Imvexxy considered safe?
Imvexxy is generally considered safe for short-term use in appropriate patients, particularly because it delivers estrogen locally and in low doses. However, like all estrogen therapies, it may increase the risk of certain conditions, such as endometrial cancer, stroke, or blood clots, especially in people with preexisting risk factors.
Can Imvexxy be used by women who have had a hysterectomy?
Yes, women who have had a hysterectomy may still use Imvexxy if they are experiencing vaginal atrophy symptoms, but they should still discuss potential risks with their healthcare provider, especially since systemic estrogen therapy risks may differ based on hysterectomy status.
How long does it take for Imvexxy to work?
Some users may begin to notice relief from dryness and discomfort within a few weeks, but full benefit typically occurs after consistent use over several weeks. Individual response times can vary based on severity of symptoms and overall health.
Do I need to take progesterone with Imvexxy?
In most cases, additional progesterone is not needed with Imvexxy because it delivers estrogen locally with minimal systemic absorption. However, your healthcare provider may consider your personal health history before confirming this.
Can Imvexxy be used long-term?
Imvexxy may be used long-term under the supervision of a healthcare provider. The lowest effective dose for the shortest duration should be used, and periodic evaluations are recommended to determine whether continued treatment is necessary.
Who should not use Imvexxy?
Imvexxy should not be used by individuals with a history of estrogen-sensitive cancers, unexplained vaginal bleeding, active blood clots, liver disease, or known allergy to estradiol. It is also not intended for use in children or during pregnancy. Always consult your healthcare provider before starting treatment.
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A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (e.g., different shape or color), as trademark laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.