Betodermin Actions

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Actions of Betodermin in details

The action of the drug on the human body is called Pharmacodynamics in Medical terminology. To produce its effect and to change the pathological process that is happening the body and to reduce the symptom or cure the disease, the medicine has to function in a specific way. The changes it does to the body at cellular level gives the desired result of treating a disease. Drugs act by stimulating or inhibiting a receptor or an enzyme or a protein most of the times. Medications are produced in such a way that the ingredients target the specific site and bring about chemical changes in the body that can stop or reverse the chemical reaction which is causing the disease.
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Pharmacology:

Topical corticosteroids, such as Betodermin dipropionate, are effective in the treatment of corticosteroid-responsive dermatoses primarily because of their anti-inflammatory, antipruritic and vasoconstrictive actions. While the physiologic, pharmacologic, and clinical effects of the corticosteroids are well known, the exact mechanisms of their actions in each disease are uncertain. However, corticosteroids are thought to act by the induction of phospholipase A2 inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation, such as prostaglandins and leukotrienes, by inhibiting the release of their common precursor, arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A.

The extent of percutaneous absorption of topical corticosteroids is determined by many factors including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings.

While topical corticosteroids can be absorbed from normal intact skin, dermal inflammation and/or other dermatologic disease processes may increase percutaneous absorption. Occlusive dressings substantially increase the percutaneous absorption of topical corticosteroids.

In patients with psoriasis, application of 14 grams per day (7 grams twice daily) of Betodermin Cream for eight days produced depressed adrenocortical hormonal levels in plasma. Shortly after treatment cessation, adrenal output returned to normal. Application of 7 grams per day (once daily or 3.5 grams twice daily) of Betodermin Cream for one, two or three weeks produced hypothalamic-pituitary-adrenal (HPA) axis suppression in patients with psoriasis or atopic dermatitis. Suppression of HPA axis in these patients was usually mild to moderate, transient, and returned to normal during treatment or shortly after treatment cessation.

At 14 grams per day for nine days, Betodermin Ointment was shown to depress plasma cortisol levels following repeated applications to diseased skin in patients with psoriasis. These effects were reversible upon discontinuation of treatment. At 7 grams per day (applied as 3.5 grams twice daily), Betodermin Ointment was shown to cause minimal inhibition of the HPA axis when applied for two to three weeks in normal patients and in patients with psoriasis and eczematous disorders. With 6 to 7 grams of Betodermin Ointment applied once daily for three weeks, no significant inhibition of the HPA axis was observed in patients with psoriasis and atopic dermatitis, as measured by plasma cortisol and 24-hour urinary 17-hydroxy-corticosteroid levels.

After dermal absorption, topical corticosteroids enter pharmacokinetic pathways similar to those of systemically administered corticosteroids. In varying degrees, corticosteroids are bound to plasma proteins. They are metabolized primarily in the liver and excreted by the kidneys. Some topical corticosteroids and their metabolites undergo biliary excretion.

Toxicology: Preclinical Information: Carcinogenesis, Mutagenesis and Impairment of Fertility: Long-term animal studies have not been performed to evaluate the carcinogenic potential of Betodermin dipropionate or the effect on fertility of topically applied corticosteroids.

Betodermin dipropionate was negative in the bacterial mutagenicity assay (Salmonella typhimurium and Escherichia coli), and in the mammalian cell mutagenicity assay (CHO/HGPRT). It was positive in the in vitro human lymphocyte chromosome aberration assay, and equivocal in the in vivo mouse bone marrow micronucleus assay. This pattern of response is similar to that of dexamethasone and hydrocortisone.

Studies in rabbits, mice, and rats using intramuscular doses up to 1, 33, and 2 mg/kg respectively, resulted in dose related increases in fetal resorptions in the rabbits and mice.

Corticosteroids have been shown to be teratogenic in laboratory animals when administered systemically at relatively low dosage levels. Some corticosteroids have been shown to be teratogenic after dermal application in laboratory animals. Betodermin dipropionate has been shown to be fetotoxic (increased incidence of resorptions) and teratogenic in rabbits when given by the intramuscular route at doses of 0.015 and 0.05 mg/kg. This dose is approximately 26 times the human topical dose of Betodermin assuming human percutaneous absorption of approximately 3% and the use in a 70 kg person of 7 g per day. The abnormalities observed included umbilical hernias (0.015 and 0.05 mg/kg), cephalocele and cleft palate (0.05 mg/kg); an increased incidence of resorptions also was observed at both dose levels. Other corticosteroids have been shown to be teratogenic in laboratory animals when administered systemically at relatively low dosage levels and some corticosteroids have been teratogenic after dermal application.

How should I take Betodermin?

A nurse or other trained health professional will give you Betodermin sodium phosphate and Betodermin acetate. It may be given as a shot into a muscle, joint, or skin, or as a shot into a lesion on your skin.

You may need to be on a salt-restricted diet or take potassium supplements when you receive Betodermin sodium phosphate and Betodermin acetate. Talk to your doctor if you have concerns.

Betodermin administration

Administration of drug is important to know because the drug absorption and action varies depending on the route and time of administration of the drug. A medicine is prescribed before meals or after meals or along with meals. The specific timing of the drug intake about food is to increase its absorption and thus its efficacy. Few work well when taken in empty stomach and few medications need to be taken 1 or 2 hrs after the meal. A drug can be in the form of a tablet, a capsule which is the oral route of administration and the same can be in IV form which is used in specific cases. Other forms of drug administration can be a suppository in anal route or an inhalation route.
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Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

Your doctor may occasionally change your dose to make sure you get the best results from this medication.

Your steroid medication needs may change if you have unusual stress such as a serious illness, fever or infection, or if you have surgery or a medical emergency. Tell your doctor about any such situation that affects you.

Measure the liquid form of Betodermin with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using Betodermin.

Do not stop using Betodermin suddenly, or you could have unpleasant withdrawal symptoms. Talk to your doctor about how to avoid withdrawal symptoms when stopping the medication.

Carry an ID card or wear a medical alert bracelet stating that you are taking a steroid, in case of emergency. Any doctor, dentist, or emergency medical care provider who treats you should know that you are taking steroid medication.

Store Betodermin at room temperature away from moisture and heat.

Betodermin pharmacology

Pharmacokinetics of a drug can be defined as what body does to the drug after it is taken. The therapeutic result of the medicine depends upon the Pharmacokinetics of the drug. It deals with the time taken for the drug to be absorbed, metabolized, the process and chemical reactions involved in metabolism and about the excretion of the drug. All these factors are essential to deciding on the efficacy of the drug. Based on these pharmacokinetic principles, the ingredients, the Pharmaceutical company decides dose and route of administration. The concentration of the drug at the site of action which is proportional to therapeutic result inside the body depends on various pharmacokinetic reactions that occur in the body.
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Mechanism of Action

Corticosteroids play a role in cellular signaling, immune function, inflammation, and protein regulation; however, the precise mechanism of action of Betodermin dipropionate lotion (augmented), 0.05% in corticosteroid responsive dermatoses is unknown.

Pharmacodynamics

Vasoconstrictor Assay

Trials performed with Betodermin dipropionate lotion (augmented), 0.05% indicate that it is in the super-high range of potency as demonstrated in vasoconstrictor trials in healthy subjects when compared with other topical corticosteroids. However, similar blanching scores do not necessarily imply therapeutic equivalence.

Pharmacokinetics

No pharmacokinetic trials have been conducted with Betodermin dipropionate lotion (augmented), 0.05%.

The extent of percutaneous absorption of topical corticosteroids is determined by many factors including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings.

Topical corticosteroids can be absorbed through normal intact skin. Inflammation and/or other disease processes in the skin may increase percutaneous absorption. Occlusive dressings substantially increase the percutaneous absorption of topical corticosteroids.

Once absorbed through the skin, topical corticosteroids enter pharmacokinetic pathways similar to systemically administered corticosteroids. Corticosteroids are bound to plasma proteins in varying degrees, are metabolized primarily in the liver, and excreted by the kidneys. Some of the topical corticosteroids and their metabolites are also excreted into the bile.



References

  1. DailyMed. "BETAMETHASONE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
  2. NCIt. "Betamethasone: NCI Thesaurus (NCIt) provides reference terminology for many systems. It covers vocabulary for clinical care, translational and basic research, and public information and administrative activities.". https://ncit.nci.nih.gov/ncitbrowser... (accessed September 17, 2018).
  3. EPA DSStox. "Betamethasone: DSSTox provides a high quality public chemistry resource for supporting improved predictive toxicology.". https://comptox.epa.gov/dashboard/ds... (accessed September 17, 2018).

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The results of a survey conducted on ndrugs.com for Betodermin are given in detail below. The results of the survey conducted are based on the impressions and views of the website users and consumers taking Betodermin. We implore you to kindly base your medical condition or therapeutic choices on the result or test conducted by a physician or licensed medical practitioners.

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Information checked by Dr. Sachin Kumar, MD Pharmacology

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