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Full of Articles - Astragalus - Medicinal Uses, Interactions, Side Effects, Dosage
Astragalus(Astragalus membranaceous)rating:
The astragalus species that is obtained from China is A. membranaceous, also known as Mongolian milk vetch, or by its Chinese name, huang qi. It is quite different from other species of As
The astragalus species that is obtained from China is A. membranaceous, also known as Mongolian milk vetch, or by its Chinese name, huang qi. It is quite different from other species of As
According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product
tragalus, known as locoweeds, which contain large amounts of selenium and other potential toxins, and from the Middle Eastern plant, A. gummifer, which is the source of gum tragacanth.
Uses and Benefits:
In Chinese traditional med
Uses and Benefits:
In Chinese traditional med
; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.
Examples of combination products may in
Examples of combination products may in
icine, the root of A. membranaceous is a popular and potent tonic used for numerous specific indications, especially infections. It is thought to improve depressed immunity, and therefore it has been recommended for the treatment of AIDS and other viral diseases, and
lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.
s an adjuvant in cancer therapy. The herb is now advocated for a wide variety of illnesses, including the common cold, influenza, respiratory insufficiency, diabetes, hypertension, liver disease, cardiac ischemia, heart failure, vascular insufficiency, and nephritis.
here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe
Pharmacology:
The important constituents include numerous triterpene saponins, known as astragalosides and related compounds such as soyasaponins. A number of polysaccharides, such as astragalans I-IV, have been isolated. Important flavonoids inclu
d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.
Combination pro
Combination pro
e quercetin and kaempferol; among its many other constituents are isoflavonoids, sugars, amino acids, and linoleic acid. It is unclear which of the numerous constituents are of therapeutic value. However, the polysaccharides and saponins have been suggested to be the
ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc
major agents.
The polysaccharide fractions of the root extract have been reported to have in vitro effects that suggest an immune-enhancing capability. There is some evidence that astragalus can potentiate the effect of interferon against viruses and can inc
The polysaccharide fractions of the root extract have been reported to have in vitro effects that suggest an immune-enhancing capability. There is some evidence that astragalus can potentiate the effect of interferon against viruses and can inc
easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi
rease IgA and IgM in nasal secretions in humans. Animal experiments have shown that extracts of astragalus can restore the immune properties of cancer patient T-cells in vitro. A more recent rat study does not confirm earlier reports that astragalus
nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically
xtract can prevent myelosuppression by cyclophosphamide.
Clinical Trials:
Almost all of the clinical studies on astragalus are in Chinese medical books or journals and are therefore not readily evaluated. In an open study on 1000 subjects, 8 it is a
Clinical Trials:
Almost all of the clinical studies on astragalus are in Chinese medical books or journals and are therefore not readily evaluated. In an open study on 1000 subjects, 8 it is a
and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ
lleged that a 2-month prophylactic course of the herb in a dosage of 8 g/day in combination with interferon was correlated with a significant reduction in colds compared to placebo or interferon alone. Benefits in humans for a wide variety of chronic and serious diso
ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi
ders also have been reported. For example, it is asserted that astragalus increases serum IgM, IgE, and cAMP; enhances left ventricular function and cardiac output in patients with angina pectoris; improves hemorrhagic indices in patients with systemic lupus erythemat
ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.
Following aspects would a
Following aspects would a
osus; increases survival in lung cancer when combined with conventional therapy; improves leukopenia; improves liver function in chronic viral hepatitis; and so on
However, none of these reports are evaluable, and the testing applied as well as the observations made
However, none of these reports are evaluable, and the testing applied as well as the observations made
dd to the challenges in developing combination products:
Which markets to tap where the combination products can do fairly well?
Which combination prod
Which markets to tap where the combination products can do fairly well?
Which combination prod
by investigators do not conform to standard methods used in Western medicine. In general, these studies were uncontrolled or unblinded, and no reliable clinical studies in support of these indications have been reported in the English-language peer-reviewed literatur
cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin
. Thus, there is only very equivocal evidence to support the numerous clinical claims that are made for astragalus, particularly as an immune system restorative or as an immune modulator for use in the treatment of cancer.
Adverse Effects:
Herbalis
Adverse Effects:
Herbalis
tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen
What would be the developing cost?
How to tackle the risks encountered during combination product developmen
ts regard astragalus as very safe based on its reputation as a valued traditional medication. It is unlikely that astragalus has any serious toxicity, although there is a lack of reliable clinical data.
Side Effects and Interactions:
There are no re
Side Effects and Interactions:
There are no re
t?
As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel
As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel
cognized drug interactions.
Cautions:
Astragalus can be obtained in combination mixtures, in which other agents may have a potential for toxicity.
Preparations & Doses:
Sliced astragalus root is often used to make teas, soups, or
Cautions:
Astragalus can be obtained in combination mixtures, in which other agents may have a potential for toxicity.
Preparations & Doses:
Sliced astragalus root is often used to make teas, soups, or
ping new procedures for reviewing their safety, efficacy and quality.
Professional from academic institutions, pharmaceutical industries, health care indust
Professional from academic institutions, pharmaceutical industries, health care indust
decoctions. The usual daily dose varies from 2 to 30 g or more of the dried root; although large doses appear to be safe, 8-15 g/day seems to be more reasonable. Some products contain standardized extracts, packaged in unit doses. Capsules containing 150-500 mg are co
y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products
mmonly marketed, to be taken as often as 8 or 9 times a day; tinctures and fluid extracts are also available. In traditional Chinese medicine, it is usual to take astragalus in combination with other herbs.
Summary Evaluation
A membran
Summary Evaluation
A membran
.
As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de
As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de
ceous is a popular Chinese herb that has long been used as a tonic. Increasing claims suggest that it is of value as an immune restorative to fight viral diseases, as a treatment for Lancer, and as a cure for other disorders. However, the scientific evidence of c
elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.
Companies that provide selfless information through particip
Companies that provide selfless information through particip
linical effectiveness is of unclear quality, and has not been validated outside the Asian literature. Thus, actual benefits are not substantiated. The fact that large doses can be taken with reported toxicity suggests that astragalus has minimal pharmacologic potency
tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products
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