Femara Letrozole Injectable Anti Estrogen Steroids 112809-51-5
Alias: Femara, Lelrozol, TROZET,Letroz,Lelroz, letrozolex
CAS Registry Number:112809-51-5
Appearance: White crystalline powder.
Primarily treating certain kinds of breast cancer in women past
menopause. It may also be used for other conditions as determined
by your doctor.
Letrozole is an aromatase inhibitor. It works by reducing the total
amount of estrogen produced primarily in the body. This helps to
starve cancer cells by depriving them of estrogen.
Do NOT use letrozole if:
you are allergic to any ingredient in letrozole
you have not started menopause
Contact your doctor or health care provider right away if any of
these apply to you.
How to use letrozole
Use letrozole as directed by your doctor. Check the label on the
medicine for exact dosing instructions.
- Take letrozole by mouth with or without food.
- Take letrozole on a regular schedule to get the most benefit from
- If you miss a dose of letrozole, take it as soon as possible. If it
is almost time for the next dose, skip the missed dose and go back
to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how
to use letrozole.
Femara Oral Conversion Recipes
200ml @ 5 mg/ml
1 gram of powder
1 beaker suitable for holding the volume of liquids
19.9 ml of PEG 300
179.1 ml of 190 Proof Grain Alcohol
Standard Dosing Range and Cycle Length :
Effective Dose (Men):.25-.5 mg per day
Effective Dose (Women):2.5 mg/day (medical purposes only)
How letrozole works
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.
It can also reduce the chance of a breast cancer coming back after
Letrozole only works in women who have had their menopause. It is a
type of drug called an aromatase inhibitor. After the menopause,
women don’t produce oestrogen from their ovaries. But they still
produce a small amount by using an enzyme called aromatase which
turns other sex hormones called androgens into oestrogen. This
change happens mainly in fatty tissue, muscle and the skin.
Aromatase inhibitors block aromatase so that it can’t change the
androgen into oestrogen.
|Appearance||White or off-white crystaline powder||White Crystalline powder|
|Solubility||Soluble in Chloroform;|
Soluble in ethanol when heated
|ldentification||(1)Maximum absorption in wavelength of 240 nm|
Minimum absorption in wavelength of 215 nm
(2)Infrared spectrum should be in accordance the dominant peak of
In accordance with the dominant peak of contrast
|Loss on drying||≤1.0%||0.8%|
(On anhydrous basis)
|Conclusion||Conforms Specifications of Enterprise Standard.|