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   Mifepriestone is a new type of antifertility drug which was first developed by Roussel-UOLSF in France in the early 1980s. It has no progesterone, androgen and estrogen activity. It was first marketed in France in 1988. Major role in endometrial progesterone receptor, can compete with progesterone receptor and the glucocorticoid receptor, has high affinity, endometrial progesterone receptor affinity for five times stronger than progesterone, under the effective dose had no obvious effect on cortisol levels, can produce a strong resistance to progesterone, make the pregnancy decidua and villi tissue degeneration, endogenous prostaglandin release, Causes uterine contraction, at the same time can make the human chorionic gonadotropin production reduced, luteal dissolution, thus making the embryo abortion. Because the drug can not cause enough uterine activity, the rate of incomplete abortion is higher when used only in the anti-early pregnancy, but it can increase the sensitivity of uterine to prostaglandin, so adding small dose of prostaglandin can not only reduce the adverse reaction of prostaglandin, but also significantly improve the rate of complete abortion. Mifepristone also has the effect of softening and dilating the cervix.
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Company Information

   Hebei Lingding Biotechnology Co., Ltd. is a professional business company ,that include pharmaceutical raw materials, pharmaceutical intermediates,and other more than 1000 products of the enterprise,  The registered capital is 3 million yuan, it is a collection of scientific research, production and sales in one of the enterprises.

Since its establishment, the company has always adhered to the core concept of "focus on products, attentive service", adhere to the business purpose of "innovation, professional, win-win", to provide customers with a full range of meticulous and thoughtful services. We will adhere to the customer's serious and responsible attitude, comply with the standardized operation procedures, with efficient execution to complete customer needs.

The company's products are sold all over the world, mainly exported to the United States, Europe, Southeast Asia, Australia, the Middle East and South Africa and other countries.The company has a strong scientific research and technical team, can provide customers with high quality products and a full range of services. We will provide first-class products and better service to face the needs of customers, to meet the challenges of the market.  Welcome domestic and foreign customers to negotiate.

FAQ
Q1. What information should I let you know if I want to get a quotation?
Answer: -Quality you require, eg. Assay, Purity, or single impurity
-Quantity you need
-Standard you want, such as USP, EP, JP etc.

Q2. How to make the payment?
Answer: T/T in advance are highly recommended. We can accept Western Union,
Money Gram and Paypal as well.

Q3. When will you deliver the goods?
Answer: For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.

Q4. How will you deliver the goods?
Answer: We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post. For container products, we can do sea shipping. You also can choose your own shipping forwarder.

Q5. When will we receive the goods?
Answer: For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 to reach you; for larger orders, it will take about 7 -10days at most.

Q6. What if we find your products unsatisfied?
Answer: We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality, but if you find our products not confirm with the COA after you receive it, please show us your test result, we will refund you once we confirm that.
 
Q7.Do you have stock?
Answer:As we know,most customers prefer stock,so we will try to keep stock for some products.