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- Pharmacology For Miconazole + Neomycin + Betamethasone valerate
Miconazole + Neomycin + Betamethasone valerate Pharmacology
Miconazole + Neomycin + Betamethasone valerate
About Miconazole + Neomycin + Betamethasone valerateN/AMechanism of Action of Miconazole + Neomycin + Betamethasone valerateN/APharmacokinets of Miconazole + Neomycin + Betamethasone valerateN/AOnset of Action for Miconazole + Neomycin + Betamethasone valerateN/ADuration of Action for Miconazole + Neomycin + Betamethasone valerateN/AHalf Life of Miconazole + Neomycin + Betamethasone valerateN/ASide Effects of Miconazole + Neomycin + Betamethasone valerateN/AContra-indications of Miconazole + Neomycin + Betamethasone valerateN/ASpecial Precautions while taking Miconazole + Neomycin + Betamethasone valerateN/APregnancy Related InformationN/AOld Age Related InformationN/ABreast Feeding Related InformationN/AChildren Related InformationN/AIndications for Miconazole + Neomycin + Betamethasone valerateN/AInteractions for Miconazole + Neomycin + Betamethasone valerateN/ATypical Dosage for Miconazole + Neomycin + Betamethasone valerateN/ASchedule of Miconazole + Neomycin + Betamethasone valerateN/AStorage Requirements for Miconazole + Neomycin + Betamethasone valerateN/AEffects of Missed Dosage of Miconazole + Neomycin + Betamethasone valerateN/AEffects of Overdose of Miconazole + Neomycin + Betamethasone valerateN/AMiconazole
About MiconazoleAn imidazole derivative, Broad spectrum Antifungal.Mechanism of Action of MiconazoleMiconazole is fungicidal or fungistatic depending on the drug concentrations. I t inhibits the conversion of Lanosterol to 14 demethyl Lanosterol by inhibiting the cytochromeP450 enzyme 14 alpha demethylase and impair ergosterol synthesisPharmacokinets of MiconazoleAbsorption: Oral absorption of Miconazole is poor. Distribution: It is distributed in the body in protein bound form Metabolism: It undergoes metabolism in the liver. Excretion: It is excreted in urine and faeces.Onset of Action for MiconazoleN/ADuration of Action for MiconazoleN/AHalf Life of Miconazole1 daySide Effects of Miconazole1.Vulvovaginal burning
2.Burning
3.Irritation
4.Pruritis
5.Maceration
6.Dermatitis Contra-indications of Miconazole1.Hypersensitivity to Miconazole and other Azole antifungalsSpecial Precautions while taking Miconazole1.Hepatic dysfunctionPregnancy Related InformationContraindicatedOld Age Related InformationUse with cautionBreast Feeding Related InformationContraindicatedChildren Related InformationUse with caution
NEONATES: contraindicated
Indications for Miconazole1.Tinea versicolor
2.Vulvovaginal candidiasis
3.Tinea pedis
4.Tinea corporis
5.Tinea cruris
6.Otomycosis
7.Onychomycosis
8.Oral candidiasis
9.Intestinal candidiasis
10.Diaper dermatitisInteractions for MiconazoleBenzoyl peroxide: Antibacterial synergism. Typical Dosage for MiconazoleAdult: Topical use:
Cutaneous infections: Apply the cream twice daily on the affected part for about 1 month
Tinea versicolor: Apply the cream once daily on the affected part
Vaginal use: Insert 300 mg suppository at bed time for 3 days or Insert 100 mg suppository at bed time for 7 days
CHILDREN:
Topical use:
Cutaneous infections: Apply the cream twice daily on the affected part for about 1 month
Tinea vericolor: Apply the cream once daily on the affected part
Schedule of MiconazoleHStorage Requirements for MiconazoleThe drug should be stored at 15 - 30 degree C.Effects of Missed Dosage of MiconazoleTake the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.
Effects of Overdose of MiconazoleGive supportive measures and treatment.
Neomycin
About NeomycinAn aminoglycoside, Antibiotic, Ammonium Detoxicant.Mechanism of Action of NeomycinThis aminoglycoside cause protein synthesis inhibition by "irreversibly" bind to specific 30S-subunit proteins and 16S rRNA. Specifically Neomycin binds to four nucleotides of 16S rRNA and a single amino acid of protein S12. This interferes with decoding site in the vicinity of nucleotide 1400 in 16S rRNA of 30S subunit. This region interacts with the wobble base in the anticodon of tRNA. This leads to interference with the initiation complex, misreading of mRNA so incorrect amino acids are inserted into the polypeptide leading to nonfunctional or toxic peptides and the breakup of polysomes into nonfunctional monosomes.Pharmacokinets of NeomycinAbsorption- Poorly absorbed after oral administration
Distribution- Rapidly distributed in the body after oral administration. 30% bound to the plasma proteins. It crosses the placenta
Metabolism- Not metabolized
Excretion- Excreted through urine and feces (primarily as unchanged form). It also excreted through breast milk
Onset of Action for Neomycin1 to 4 hr after oral administrationDuration of Action for Neomycin8hrs after oral administrationHalf Life of NeomycinIts plasma half life is 2 to 3 hrsSide Effects of Neomycin1. Rash
2. Diarrhoea
3. Inflammation of the large intestine (colitis)
4. Nausea
5. Vomiting
6. Ototoxicity
7. Damage to the kidneys
8. Damage to vestibular function within the ear
Contra-indications of Neomycin1. Hypersensitivity to the drug or any ingredients of it
2. Hypersensitivity to other amino glycosides
3. Intestinal obstruction
Special Precautions while taking Neomycin1. Impaired renal function
2. Neuromuscular disorder
3. Ulcerative bowel lesions
4. Extensive dermatologic conditions
5. Any other eye infection or condition
6. Glaucoma
7. Cataract surgery
8. Blockage of the bowel
9. Eighth-cranial-nerve disease (loss of hearing and/or balance)
10. Kidney disease
11. Myasthenia gravis
12. Parkinson`s disease
13. Ulcers of the bowel
Pregnancy Related InformationContraindicatedOld Age Related InformationUse with cautionBreast Feeding Related InformationContraindicatedChildren Related InformationUse with cautionIndications for Neomycin1. Coma due to liver disease
2. Preventing infection following surgery
3. Topical infections
4. Systemic infections
Interactions for NeomycinN/ATypical Dosage for NeomycinOphthalmic suspension:
Adults-
1 or 2 drops every three or four hours- For eye infection
Oral (solution, tablets):
Adults and teenagers-
1 to 3 grams every six hours for five or six days- coma from liver disease
Adults and teenagers-
1 gram every hour for four hours, then 1 gram every four hours for the rest of a twenty-four hour period; or 1 gram nineteen hours before surgery, 1 gram eighteen hours before surgery, and 1 gram nine hours before surgery- cleaning the bowel before surgery.
Children-
14.7 milligrams mg/kg or 6.7 mg/ pound every four hours for three days
Ear preparation:
Adults and children-
2 to 5 drops into ear canal 3 to 4 times daily for 7 to 10 days- External ear canal infection
Schedule of NeomycinCStorage Requirements for NeomycinEye preparations store in the refrigerator protected from strong light. Do not freeze. Others are stored at <250C. Keep out of reach of children.Effects of Missed Dosage of NeomycinTake the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.Effects of Overdose of NeomycinGive symptomatic and supportive treatment. Provide haemodialysis or peritoneal dialysis to remove the drug. Treated with calcium salts or anticholinesterase to reverses neuromuscular blockade. Administer activated charcoal to prevent the further absorption of drugBetamethasone valerate
About Betamethasone valerateIt is a topical steroid
Mechanism of Action of Betamethasone valerateThe drug exerts it`s pharmacological action by penetrating and binding to cytoplasmic receptor protein and causes a structural change in steroid receptor complex. This structural change allows it`s migration in to the nucleus and then binding to specific sites on the DNA which leads to transcription of specific m-RNA and which ultimately regulates protein synthesis. It exerts highly selective glucocorticoid action. It stimulates the enzymes needed to decrease the inflammatory response.
The drug exerts anti-inflammatory and immunosuppressant actions as follows: - 1) Induce lipocortins in macrophages, endothelium, and fibroblasts which inhibits phospholipase A2 and thus decreases the production of Prostaglandins, leukotriens (LT), and platelet activating factor, 2) Causes negative regulation of genes for cytokines in macrophages, endothelial cells and lymphocytes and thus decreases the production of interleukins (IL-1, IL-2, IL-3, IL-6), TNF-alpha, GM-CSF (granulocyte macrophage colony stimulating factor), Gama interferon and suppresses fibroblast proliferation and T-lymphocyte functions and interferes chemotaxis. 3) Decreases the production of acute phase reactants from macrophages and endothelial cells and interferes complement function. 4) Decreases the production of ELAM-1(Endothelial leukocyte adhesion molecule-1) and ICAM-1(intracellular adhesion molecule-1) in endothelial cells. 5) Inhibit IgE mediated histamine and LT-C4 release from basophiles and the effects of antigen-antibody reaction is not mediated 6) Reduces the production of collagenase and stromolysin and thus prevents tissue destruction.
Pharmacokinets of Betamethasone valerateAbsorption: It is absorbed in to the systemic circulation and the amount is depending on the potency, amount applied and the nature of the skin at the site of application. Absorption increases at the site of skin damage, inflammation or occlusion.
Onset of Action for Betamethasone valerateN/ADuration of Action for Betamethasone valerateN/AHalf Life of Betamethasone valerateN/ASide Effects of Betamethasone valerate1.Thinning of the skin
2.Loss of elasticity
3.Increased hair growth
4.Acne at the site of application
5.Mild depigmentation
6.Rosacea
Contra-indications of Betamethasone valerate1.Untreated bacterial, virus or fungal infections
2.Acne vulgaris,
3.Peri-oral dermatitis,
4.Scabies,
5.Leg ulcers,
6.Tuberculosis of the skin,
7.Varicose ulcers,
8.Skin lesions caused by infections with ring worm,. fungi (e.g. Candida, Tinea) or bacteria (e.g. impetigo)
9.Hypersensitivity to Betamethasone and other corticosteroids.
10.Discoid lupus Erythematosus
Special Precautions while taking Betamethasone valerate1.Avoid contact with eyes
2.For external use only
3.Prolonged use
Pregnancy Related InformationUse with cautionOld Age Related InformationUse with cautionBreast Feeding Related InformationUse with cautionChildren Related InformationUse with caution
NEONATES: contraindicatedIndications for Betamethasone valerate1.Psoriasis,
2.Eczema,
3.Otitis externa,
4.Lichen simplex and planus,
5.Anal and vulval Pruritis,
6.Seborrheic dermatitis,
7.Contact dermatitis,
8.Steroidal responsive dermatoses of the scalp
Interactions for Betamethasone valerateN/ATypical Dosage for Betamethasone valerateTopical:
Betamethasone Valerate: Apply to the affected area as thin film 1 - 4 times daily depending upon the severity, skin and rate of absorption.
Dermatoses of the scalp: (Betamethasone Valerate 0.12%): Small amount of foam is applied in to the scalp with gentle massage 2 times a day for up to 2 weeks.
Schedule of Betamethasone valerateN/AStorage Requirements for Betamethasone valerateStore at room temperature in a well closed; light resistant container. Protect from excess heat and moisture. Keep out of reach of children.Effects of Missed Dosage of Betamethasone valerateApply the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.Effects of Overdose of Betamethasone valerateProvide symptomatic treatment and supportive measures.Home Delivery for Miconazole + Neomycin + Betamethasone valerate in Your City
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