Raloxifene hydrochloride is an estrogen agonist/antagonist, referred to as a selective estrogen receptor modulator (SERM) and belongs to the benzothiophene class of compounds. The biological actions of raloxifene Hcl are largely mediated through binding to estrogen receptors.β-agonist Powder
This binding results in activation of estrogenic pathways in some tissues (agonism) and and the blockade of estrogenic pathways in other tissues (antagonism). The agonistic or antagonistic activity of raloxiffene depends on the extent of recruitment of coactivators and corepressors to estrogen receptor (ER) target gene promotors.
Raloxifene Hcl appears to act as an estrogen agonist in bone. It decreases bone resorption and bone turnover, increases bone mineral density and decreases fracture incidence.
Raloxifene Hydrochloride Application:
1) Raloxifene Hcl used to prevent & treat osteoporosis in women who have undergone menopause.
2) Raloxifene Hcl used to decrease the risk of developing invasive breast cancer in women who are at high risk of developing this type of cancer or who have osteoporosis. Raloxifene Hcl cannot be used to treat invasive breast cancer or to prevent invasive breast cancer from coming back in women who have already had the condition.
3) Raloxifene Hcl prevents and treats osteoporosis by mimicking the effects of estrogen to increase the density (thickness) of bone.
4) Raloxifene Hcl decreases the risk of developing invasive breast cancer by blocking the effects of estrogen on breast tissue, which may stop the development of tumors that need estrogen to grow.
High Purity Anastrozole Acetate Arimidex with Safety Shipping
Anastrozole powder
Alias: Arimidex
CAS No: 120511-73-1
MF: C17H19N5
MW: 293.37
Purity: 99%min
Appearance: White crystalline powder.
If you have any questions,welcome to your consult
Usage: An aromatase inhibitor. Used as an antineoplastic raw materials.
Potent selective triazole aromatase inhibitors, can inhibit the
cytochrome P-450 aromatase enzyme which depends blocking the
biosynthesis of estrogen, and estrogen to stimulate breast cancer cell
growth factors. Treatment of breast cancer, especially for those with
hormone relapse after adjuvant therapy after menopause for women with
advanced breast cancer.
Arimidex (anastrozoles) is the aromatase inhibitor of choice. Arimidex’s mechanism of action – blocking conversion of aromatizable steroids to estrogen – is in contrast to the mechanism of action of anti-estrogens such as clomiphene (Clomid) (Nolvadex), which block estrogen receptors in some tissues, and activate estrogen receptors in others.
Applications:
High Purity Anastrozoles/Arimidex/CAS No: 120511-73-1
The drug is appropriately used when using substantial amounts of
aromatizing steroids, or when one is prone to gynecomastia and using
moderate amounts of such steroids. Arimidex does not have the side
effects of aminoglutethimide (Cytadren) and can achieve a high degree of
estrogen blockade, much moreso than Cytadren. It is possible to reduce
estrogen too much with Arimidex, and for this reason blood tests, or
less preferably salivary tests, should be taken after the first week of
use to determine if the dosing is correct.
Sensitive and fast analysis of terbutaline sulfate in food
Terbutaline
sulfate (TBS) is a β2-adrenoceptor agonist, overdoses of which can
cause serious harm and even be life-threatening to humans. Herein, we
demonstrate a simple and facile method for the preparation of a
molybdenum disulfide–gold nanoparticle composite (MoS2/AuNPs). The
obtained MoS2 and MoS2/AuNPs were characterized and investigated by
X-ray powder diffraction, scanning electron microscopy, and transmission
electron microscopy.
An MoS2/AuNPs-modified glassy carbon electrode (MoS2/AuNPs/GCE) was
constructed using the dropping method and used to study the
electrochemical behavior of TBS. The results indicated that the sensor
had excellent electrocatalytic activity for TBS, with detection
sensitivity for TBS more than 100 times higher compared with the bare
GCE. With the successive addition of TBS, the peak current of the
differential pulse stripping voltammogram (DPSV) of TBS was proportional
to its concentration within a certain range, with a linear range of
1–85 nmol L−1 and limit of detection (LOD) of up to 0.47 nmol L−1.
Furthermore, the modified electrode showed good stability,
reproducibility, and anti-interference ability, meaning that it could be
used to detect TBS in real samples.
Molecular Formula: C26H29NO.C6H8O7
Molecular weight: 563.64
CAS NO.: 54965-24-1
Appearance: white crystalline powder
MP: 140-144 ºC
How It Works
is the most commonly used hormone therapy for the treatment of breast cancer.
to know more about Antiestrogen,powder,liquid,peptide,prohormone)
Description:
Many women have breast cancer that tests positive for estrogen receptors
(ER+). This means that estrogen promotes the growth of the breast
cancer cells. T`amoxifen blocks the effects of estrogen on these cells.
It is often called an “anti-estrogen. “Tamoxifen powder
Application:
Tamoxifen Citrate is agent that demonstrates potent anti-estrogenic
properties. The drug is technically an estrogen agonist/antagonist,
which competitively binds to estrogen receptors in various target
tissues. With the t`amoxifen molecule bound to this receptor, estrogen
is blocked from exerting any action, and an anti-estrogenic effect is
achieved. Since many forms of breast cancer are responsive to estrogen,
the ability of t`amoxifen citrate to block its action in such cells has
proven to be a very effective treatment. It is also utilized
successfully as a preventative measure, taken by people with an
extremely high familial tendency for breast cancer.
Sotalol (3930-20-9) Mechanism Of Action
Sotalol powder is indicated to treat life threatening ventricular arrhytmias and maintain normal sinus rhythm in patients with atrial fibrillation or flutter.Label There are also oral solutions and intravenous injections indicated for patients requiring sotalol, but for whom a tablet would not be appropriate.
Sotalol powder is a competitive inhibitor of the rapid potassium
channel. This inhibition lengthens the duration of action potentials and
the refractory period in the atria and ventricles. The inhibition of
rapid potassium channels is increases as heart rate decreases, which is
why adverse effects like torsades de points is more likely to be seen at
lower heart rates.6 L-sotalol also has beta adrenergic receptor
blocking activity seen above plasma concentrations of 800ng/L. The beta
blocking ability of sotalol further prolongs action potentials.
D-sotalol does not have beta blocking activity but also reduces a
patient’s heart rate while standing or exercising. These actions combine
to produce a negative inotropic effect that reduces the strength of
contractility of muscle cells in the heart. Extension of the QT interval
is also adversely associated with the induction of arrhythmia in
patients.
Sotalol powder was first synthesized in 1960 by A. A. Larsen of
Mead-Johnson Pharmaceutical. It was originally recognized for its blood
pressure lowering effects and its ability to reduce the symptoms of
angina. It was made available in the United Kingdom and France in 1974,
Germany in 1975, and Sweden in 1979. It became widely used in the 1980s.
In the 1980s, its antiarrhythmic properties were discovered. The United
States approved the drug in 1992.
06 Sotalol (3930-20-9) Mechanism Of Action
Beta-blocker action
Sotalol non-selectively binds to both β1- and β2-adrenergic receptors preventing activation of the receptors by their stimulatory ligand (catecholamines). Without the binding of this ligand to the receptor, the G-protein complex associated with the receptor cannot activate production of cyclic AMP, which is responsible for turning on calcium inflow channels. A decrease in activation of calcium channels will therefore result in a decrease in intracellular calcium. In heart cells, calcium is important in generating electrical signals for heart muscle contraction, as well as generating force for this contraction. In consideration of these important properties of calcium, two conclusions can Beta-blocker action
Sotalol non-selectively binds to both β1- and β2-adrenergic receptors preventing activation of the receptors by their stimulatory ligand (catecholamines). Without the binding of this ligand to the receptor, the G-protein complex associated with the receptor cannot activate production of cyclic AMP, which is responsible for turning on calcium inflow channels. A decrease in activation of calcium channels will therefore result in a decrease in intracellular calcium. In heart cells, calcium is important in generating electrical signals for heart muscle contraction, as well as generating force for this contraction. In consideration of these important properties of calcium, two conclusions can be drawn. First, with less calcium in the cell, there is a decrease in electrical signals for contraction, thus allowing time for the heart’s natural pacemaker to rectify arrhythmic contractions. Secondly, lower calcium means a decrease in strength and rate of the contractions, which can be helpful in treatment of abnormally fast heart rates.
Type III antiarrhythmic action
Sotalol also acts on potassium channels and causes a delay in relaxation of the ventricles. By blocking these potassium channels, sotalol inhibits efflux of K+ ions, which results in an increase in the time before another electrical signal can be generated in ventricular myocytes. This increase in the period before a new signal for contraction is generated, helps to correct arrhythmias by reducing the potential for premature or abnormal contraction of the ventricles but also prolongs the frequency of ventricular contraction to help treat tachycardia.
Stimulant Drug Albuterol Sulfate Lean Meat Powder Salbutamol Sulfate
Steroids Hormone Albuterol Sulfateis usually given by the inhaled route for direct effect on bronchial smooth muscle. This is usually achieved through a metered dose inhaler (MDI), nebulizer or other proprietary delivery devices (e.g. Rotahaler or Autohaler). In these forms of delivery, the maximal effect of salbutamol can take place within five to 20 minutes of dosing, though some relief is immediately seen. It can also be given intravenously.Used in the treatment of bronchial asthma, asthmatic bronchitis, emphysema, patients bronchospasm.Salbutamol powder
Albuterol is a bronchodilator that relaxes muscles in the airways and increases air flow to the lungs.Albuterol inhalation is used to treat or prevent bronchospasm in people with reversible obstructive airway disease. It is also used to prevent exercise-induced bronchospasm.
Albuterol sulfate is a prescription medication indicated to treat or
prevent airway constriction in people with asthma. This medication is a
bronchodilator, which works by relaxing the bronchial muscles within a
patient’s airways to allow oxygen to reach the lungs. In certain
instances, patients can develop allergic reaction symptoms after taking
albuterol sulfate for the first time. Affected patients require
immediate, emergency medical attention to avoid developing potentially
life-threatening medical complications.
Albuterol Sulfate Usage:
Albuterol is used to treat wheezing and shortness of breath caused by breathing problems such as asthma. It is a quick-relief medication. Albuterol belongs to a class of medicine known as bronchodilators. It works in the airways by opening breathing passages and relaxing muscles. Controlling symptoms of breathing problems can decrease time lost from work or schoo
Steroids Hormone Albuterol Sulfateis usually given by the inhaled route for direct effect on bronchial smooth muscle. This is usually achieved through a metered dose inhaler (MDI), nebulizer or other proprietary delivery devices (e.g. Rotahaler or Autohaler). In these forms of delivery, the maximal effect of salbutamol can take place within five to 20 minutes of dosing, though some relief is immediately seen. It can also be given intravenously.Used in the treatment of bronchial asthma, asthmatic bronchitis, emphysema, patients bronchospasm.Salbutamol powder
Albuterol is a bronchodilator that relaxes muscles in the airways and increases air flow to the lungs.Albuterol inhalation is used to treat or prevent bronchospasm in people with reversible obstructive airway disease. It is also used to prevent exercise-induced bronchospasm.
Albuterol sulfate is a prescription medication indicated to treat or
prevent airway constriction in people with asthma. This medication is a
bronchodilator, which works by relaxing the bronchial muscles within a
patient’s airways to allow oxygen to reach the lungs. In certain
instances, patients can develop allergic reaction symptoms after taking
albuterol sulfate for the first time. Affected patients require
immediate, emergency medical attention to avoid developing potentially
life-threatening medical complications.
Albuterol Sulfate Usage:
Albuterol is used to treat wheezing and shortness of breath caused by breathing problems such as asthma. It is a quic
Treating haemangiomas with propranolol
A haemangioma is a collection of small immature blood vessels. They are sometimes called ‘strawberry marks’ because the surface of some haemangiomas look a bit like a strawberry.Propanolol
Haemangiomas can be superficial or deep in the skin. Some
haemangiomas are a combination of the two, seen as a raised red area on
the surface of the skin, and as a bluish swelling of abnormal blood
vessels deeper in the skin. Very occasionally haemangiomas may occur
internally.
Haemangiomas are not usually obvious at birth but become apparent within
a few days or weeks. They grow rapidly in the first three months,
increasing in size and sometimes in redness.It is unusual for
haemangiomas to grow after six to 10 months of age, when most
haemangiomas tend to have a ‘rest period’ and then begin to shrink.
What is propranolol?
Propranolol is a beta-blocker. Some nerves release a chemical called
noradrenaline when they are stimulated, which in turn stimulates ‘beta
adrenergic receptors’. These can cause a variety of effects. For
instance, if the beta adrenergic receptors in the heart are stimulated,
the heart pumps harder and faster than before, so more blood is pumped
around the body. Betablocker medicines block the beta adrenergic
receptors and stop them being stimulated.
How does propranolol help with haemangiomas?
By blocking the beta adrenergic receptors, propranolol can make blood
vessels narrower, reducing the amount of blood flowing through them.
This is particularly effective in haemangiomas, by reducing the colour
and making them softer. Growth of the haemangioma cells is also limited
by propranolol so that the haemangioma starts to reduce in size. More
research is needed to fully understand how propranolol works. The
beneficial effects are usually seen very quickly.
Are there side effects with propranolol treatment?
Propranolol is associated with the following side effects, which happen
very rarely. However, you should report any of the following to your
doctor as the dose of propranolol may need to be altered or on very rare
occasions, stopped.
Bradycardia (slow heart rate).
Hypotension (low blood pressure).
Bronchspasm (temporary narrowing of the airway, leading to wheezing and coughing).
Peripheral vasoconstriction (reduced blood flow to the extremities, such
as fingers and toes, making them feel cold and turn a blue colour).
Weakness and fatigue, showing as floppiness and disinterest in surroundings.
Sleep disturbance.
Hypoglycaemia (low blood sugar).
Gastrointestinal disturbances such as constipation or diarrhoea.
If you have any concerns about these side effects, please discuss them with your doctor, nurse or pharmacist.
Are any tests needed before starting propranolol treatment?
Occasionally we will suggest some tests to check that your child can
safely take the medicine. These may include blood and urine tests, an
electrocardiogram (ECG) and echocardiogram (echo). If your child has
multiple haemangiomas visible on the skin, we may also carry out an
abdominal ultrasound scan to look for any haemangiomas in the liver.
What happens when my child starts treatment?
Some infants will be monitored for two hours after the first dose. This
monitoring allows the doctors to be absolutely sure your child can
tolerate the prescribed dose. The procedure is occasionally repeated
after one week when the dose is increased, although the dose is normally
increased at home.