L-thyroxine

1.       Quick Detail:

L-Thyroxine

Alias : Levothyroxine; L-Epinephrine HCl; epinephrine hydrochloride; L-adrenaline hydrochloride; (R)-adrenaline hydrochloride

CAS NO. : 51-48-9

EINECS : 200-101-1

MF : C15H11I4NO4

MW : 776.87

Melting Point : 223ºC(DEC.)

Purity : 98%

Appearance : White crystalline powder

Grade : Pharmaceutical Grade & Veterinary Grade

Storage: Shading, Closed preservation

Manufacturer :SUPER STEROIDS

Delivery time : within 18 hours upon receipt of payment

Delivery: EMS, DHL, TNT, FedEx, UPS

Usage : Levothyroxine is typically used to treat hypothyroidism. Levothyroxine is also used as interventional therapy in patients with nodular thyroid disease or thyroid cancer to suppress thyroid-stimulating hormone (TSH) secretion.

2.       Description:

Levothyroxine (INN, USAN) or L-thyroxine is a synthetic thyroid hormone that is chemically identical to thyroxine (T4), which is naturally secreted by the follicular cells of the thyroid gland. It is used to treat thyroid hormone deficiency, and occasionally to prevent the recurrence of thyroid cancer. Like its naturally secreted counterpart, levothyroxine is a chiral compound in the L-form. The related drug dextrothyroxine (D-thyroxine) was used in the past as a treatment for hypercholesterolemia (elevated cholesterol levels) but was withdrawn due to cardiac side effects.

Levothyroxine is typically used to treat hypothyroidism, and is the treatment of choice for patients with hypothyroidism, who often require lifelong thyroid hormone therapy. It may also be used to treat goiter via its ability to lower thyroid-stimulating hormone (TSH), a hormone that is considered goiter-inducing. Levothyroxine is also used as interventional therapy in patients with nodular thyroid disease or thyroid cancer to suppress thyroid-stimulating hormone (TSH) secretion. In 1992, President George H.W. Bush told television host Larry King that he had been prescribed levothyroxine as part of a treatment regimen for Graves' disease.