Sunday, December 22, 2013

Valaciclovir Mechanism of action


Valaciclovir (INN) or valacyclovir (USAN) is an antiviral biologic acclimated in the administration of canker canker and canker zoster (shingles). It is a prodrug, getting adapted in vivo to aciclovir. It is marketed by GlaxoSmithKline beneath the barter name Valtrex or Zelitrex.
Valaciclovir is phosphorylated by viral thymidine kinase to acyclovir triphosphate (the alive metabolite) which again inhibits canker viral DNA archetype by aggressive inhibition of viral DNA polymerase, and by assimilation into and abortion of the growing viral DNA chain. When acclimated as a substrate for viral DNA polymerase, acyclovir triphosphate competitively inhibits dATP arch to the accumulation of 'faulty' DNA. This is area acyclovir triphosphate is congenital into the DNA fiber replacing abounding of the adenosine bases. This after-effects in the blockage of DNA synthesis, as phosphodiester bridges can best to be built, destabilizing the strand.

Thursday, December 19, 2013

What is Tegafur?



Tegafur (INN) is a chemotherapeutic fluorouracil prodrug acclimated in the analysis of cancers. It is a basic of the aggregate biologic tegafur-uracil. When metabolized, it becomes 5-fluorouracil.
Tegafur is usually accustomed at approved intervals three times circadian for four weeks. This is again followed by a breach for a aeon of seven canicule and again the aeon is again as assigned by your doctor.
A book alleged folinic acerbic is aswell accustomed with this chemotherapy to access the capability of the treatment.

Monday, December 16, 2013

Pancreatin Description


Pancreatin is a admixture of the fat abandoning enzyme, lipase, the protein enzymes such as protease, and those that breach down carbohydrates like amylase. The enzymes in pancreatin may appear from pork or beef. If you are vegetarian or accept allergies or religious restrictions to any of these items, you should apperceive this. Pancreatic enzymes are not standardized, and accommodate a array of enzymes, including trypsin, chymotrypsin, lipase, amylase, colipase, and ribonuclease.
These enzymes activate the hydrolysis of fats into glycerol and blubbery acids, protein into proteoses and acquired substances, and starch into dextrins and sugars.
Pancreatin tablets are assigned for patients who are clumsy to abstract aliment appropriately because of an bereft bulk of accustomed pancreatic secretions. This arrears may be acquired by disorders of the pancreas, for example, cystic fibrosis or pancreatitis.

Sunday, November 17, 2013

What is rosemary extract?


Rosemary Extract is from rosemary (Rosmarinus officinalis Linn.), a accepted domiciliary bulb that has developed in the Alps back the Middle Ages, and is now begin throughout the world. According to folklore, rosemary takes its name from the Virgin Mary, who draped her blind on a rosemary bush, and again placed a white annual on top of the cloak. The annual angry dejected overnight, and the bulb became accepted as the “Rose of Mary.”

Rosemary has been acclimated for bags of years as a agreeable spice, aliment preservative, in cosmetics and hair products, and as an herbal anesthetic for a array of bloom disorders. Until now however, the exact actinic pathways complex in its benign furnishings accept remained unknown.

There are hundreds of analysis affidavit and studies on the all-encompassing antioxidant capabilities of rosemary. Before backward from the U.S. Department of Agriculture, botanist Dr. James Duke accustomed the battleground Phytochemical Database that lists all the accepted actinic compounds in added than 1,000 comestible plants, including the a lot of accepted herbs and spices. According to Duke, rosemary contains added than two dozen antioxidants, and it is the alone admixture in his database (CRC Handbook of Biologically Active Phytochemicals, 1992) to accept allowed regulating, anti-inflammatory, and antioxidant activities.

Although Rosemary Extract has been acclimated commercially as an antimicrobial aliment bactericide for years, now we apperceive for assertive that it aswell has a lot to action as a comestible supplement, 1 abnormally in the blockage of some types of cancer, allergies, and the progression of Alzheimer’s disease.

Tuesday, November 5, 2013

What is 4,5-Dimethoxy-1-cyanobenzocyclobutane?


CAS:20925-64-8

Molecular formula:C12H15NO3

Molecular weight:221.25

Density:1.137 g/cm3

Boiling Point:438.2 °C at 760 mmHg

Flash Point:218.8 °C

Appearance:A white or similar white crystalline powder

Product description:7,8-Dimethoxy-1,3,4,5-tetrahydrobenzo[d]azepin-2-one is used as the pharmaceutical intermediates.

Wednesday, October 30, 2013

What is 2-Ethoxy-1-naphthoic acid?


CAS:2224-00-2

Molecular formula:C13H12O3

Molecular weight:216.23

Properties:white to pale brown crystalline powder

Application: Nafcillin intermediate

Product description:2-Ethoxy-1-naphthoic acid is a white to pale brown crystalline powder,it used as the Nafcillin intermediate.

Monday, October 21, 2013

Dosage and Administration of Cefodizime


Cefodizime can be administered intramuscularly, or by intravenous bolus or infusion. The a lot of frequently acclimated developed dosage in analytic trials has been 2 or 4g circadian in 1 or 2 disconnected doses, either intramuscularly or intravenously. For apprehensible lower urinary amplitude infections individual doses of 1 or 2g accept been effective. In patients with gonorrhoea 0.25 to 1g as a individual dosage has resulted in analytic and bacteriological cure ante of around 100%. Dosage should be adapted in patients with renal impairment, with a best of cefodizime 2g circadian accustomed to patients with a creatinine approval of 0.6 to 1.8 L/h (10 to 30 ml/min), and bisected this dosage to patients with a creatinine approval of < 0.6 L/h (< 10 ml/min). In patients ability haemodialysis, cefodizime 1 to 2g should be administered afterwards anniversary dialysis cycle. A dosage of 60 mg/kg/day (typically in 3 to 4 disconnected doses) is frequently acclimated for the analysis of infections in paediatric populations, except in bacterial meningitis area 200 mg/kg/day (in 4 disconnected doses) has been administered.

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