Levonorgestrel 797-63-7 Oral contraceptives Safe Delivery Quick Effect USP Standard

Quick Detail

Product name	Levonorgestrel
Other name	18-methyl-17-alpha-ethynyl-19-nortestosterone
CAS	797-63-7
MF	C21H28O2
MW	312.45
Molecular structure
Assay	99%
Appearance	White or almost white crystalline powder
Usage	Progesterone drug, used for irregular menstruation

Application

       Applied in pharmaceutical field, Levonorgestrel can be used as an active ingredient in some hormonal contraceptives, including combined oral contraceptive pills, progestogen only pills, emergency contraceptive pills, intrauterine systems and contraceptive implants;

       Levonorgestrel is safe, tolerated and effective in emergency contraception in woman;

       Levonorgestrel also can be used for the treatment of menopausal and postmenopausal disorders and alone or in combination with other hormones as an oral contraceptive.

Oral contraception

       At low doses, levonorgestrel is used in monophasicand triphasicformulations of combined oral contraceptive pills, with available monophasic doses ranging from 100-250μg, and triphasic doses of 50μg/75μg/125μg.

At very low daily dose of 30μg, levonorgestrel is used in some progestogen only pillformulations.

Emergency contraception

       Levonorgestrel is used in emergency contraceptive pills(ECPs), both in a combined Yuzpe regimenwhich includes estrogen, and as a levonorgestrel-only method. The levonorgestrel-only method uses levonorgestrel 1.5mg (as a single dose or as two 0.75mg doses 12 hours apart) taken within 3 days of unprotected sex, with one study indicating that beginning as late as 120 hours (5 days) after intercourse could be effective.

       The primary mechanism of action of levonorgestrel as a progestogen-only emergency contraceptive pill is, according to FIGO, to prevent fertilization by inhibition of ovulation. The International Federation of Gynecology and Obstetrics(FIGO) has issued a statement that: "review of the evidence suggests that LNG [levonorgestreol] ECPs cannot prevent implantation of a fertilized egg. Language on implantation should not be included in LNG ECP product labeling."

       In June 2012, a New York Timeseditorial called on the Food and Drug Administration(FDA) to remove from the label the unsupported suggestion that levonorgestrel emergency contraceptive pills inhibit implantation. In November 2013, the European Medicines Agency(EMA) approved a change to the label for HRA Pharma's NorLevo saying it cannot prevent implantation of a fertilized egg. In November 2013, the EMA also approved a change to the label for HRA Pharma's NorLevo saying: "In clinical trials, contraceptive efficacy was reduced in women weighing 75 kg [165 pounds] or more, and levonorgestrel was not effective in women who weighed more than 80 kg [176 pounds]." In November 2013 and January 2014, the FDA and the EMA said they were reviewing whether increased weight and body mass index(BMI) reduce the efficacy of emergency contraceptives.

        Levonorgestrel is also used in Intrauterine system, Contraceptive implants and Hormone replacement therapy.

Our Competitive Advantages

1. Rich experience
Our company is a professional production leading factory in China in pharmaceutical area of many years

2. Superior quality, purity and favourable
Our company is a professional leading manufacturer in China in pharmaceutical area.Good quality is one of our secret success.

3. Safe and fast delivery
We have GOLDEN FORWARDER and UK Warehouse so we can delivery quickly and safely.

4. Package

Professional packing with professional materials.

5. Competitive Prices

Low price with high qulity.

FAQ

Q1: Have your Product Quality been Approved by Third Party Lab ?
A: Yes, All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France etc. So you will be assured with Good Quality if you choose us.

Q2. Are you a manufacturer?
A: Yes, we have our own factory and lab.

Q3: Is there any discount?
A: Yes, as for old customers and larger quantity, we always support with great discounts and surprise.

Q4:Do you accept VISA business credit card ?
A:Sorry we don't accept VISA credit card, we'd like to accept Western Union, MoneyGram, Bank Transfer, Bitcoin, Litecoin.

Q5: How do you treat quality complaint?
A: First of all, our QC department will do strict examination of our export products in order to reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.

Q6: How to proceed order?

1^st: Please let me know what you need-Which product/Cas No. quantity, and the destination country.
2^nd: You send us the purchase order once we come to an agreement on all details.
3^rd: Parcel would be delivered upon full payment received.
4^th: Express Tracking No.will be provided about the parcels.
5^th: You will get the parcels within 7days.
6^th: After-sales service would be provided after you receive parcels.