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CAS 112809-51-5 Letrozole Femara Letrazole Steroids Raw Powder Fat Loss
what is Letrozole ?
Letrozole is a medicine used for treating breast cancer. It can also help prevent breast cancer coming back. It is mainly prescribed for women who have been through the menopause and have a type of cancer called "hormone-dependent" breast cancer.
What is the use of letrozole tablet for pregnancy?
Letrozole is used to stimulate ovulation. It does this by affecting certain female hormone levels. Letrozole is a tablet and is taken orally daily for 5 days starting between days two and five of menses. The usual initial dose is 2.5 mg
When should I take letrozole for fertility?
The usual dose of Letrozole is 2.5mg and it is taken by mouth. It is to be taken for five days per month from day two to day six of your menstrual cycle. Day one is the first day of your period (the day you start to bleed). You need to take this tablet at the same time every day for the best results.
How soon can I get pregnant with letrozole?
Professionals have not agreed on the maximum cycles needed to take Letrozole before using another alternative therapy. According to a study on a group taking Letrozole, the average time to get pregnant was 90 days. That is about three cycles.
Can I get pregnant after taking letrozole?
Effectiveness of Letrozole
In one study, people taking letrozole are more likely to ovulate, get pregnant, and/or have a live birth compared to those taking clomiphene. There were no significant differences between the two groups in terms of pregnancy loss, fetus abnormalities, or the frequency of twin births.
What does letrozole do to a woman's body?
Letrozole lowers the levels of the female sex hormone oestrogen in the body. Oestrogen stimulates some breast cancers to grow. These breast cancers are called hormone sensitive or hormone receptor positive. Letrozole can stop or slow the growth of these cancers.
Does letrozole cause multiple eggs?
In a Letrozole medicated cycle, the amount of FSH a woman produces increases which may cause multiple follicles to develop and multiple eggs to be released, especially for women who ovulate regularly. The release of multiple eggs gives a better chance for fertilization to occur
Does letrozole increase egg quality?
Letrozole boosts this growth and release of eggs in women who are anovulatory, or not ovulating, and can cause superovulation in women who are already able to ovulate. In both cases, it increases the chances of natural conception
COA
Tests | Specifications | Results |
Appearance | White or off-white crystaline powder | White |
Crystalline powder | ||
Solubility | Soluble in Chloroform; | Conform |
Soluble in ethanol when heated | ||
ldentification | (1)Maximum absorption in wavelength of 240 nm | Conform |
Minimum absorption in wavelength of 215 nm | Conform | |
(2)Infrared spectrum should be in accordance the dominant peak of contrast | In accordance with the dominant peak of contrast | |
Melting points | 182℃-184℃ | 182℃ |
Related substances | ≤0.5% | 0.30% |
Single impurity | ≤0.3% | 0.20% |
Loss on drying | ≤1.0% | 0.80% |
[Assay]C17H11N5 | ≥98.0% | 99.20% |
(On anhydrous basis) | ||
Conclusion | Conforms Specifications of Enterprise Standard. |
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