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.
more about:
pharmaceutical chemicals online
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