Friday, February 23, 2018

VERTIGO

รหัสคำถามที่ 2528 : ยาmerislon ที่มีตัวยาBetahistine mesilate 6mg และยาStugeronที่มีตัวยาCinnarizine 25mg สองตัวนี้สามารถกินได้เรื่อยๆเป่าคะ ควรมีระยาเวลาเว้นกินยารึเปล่าเช่น กินไปหกเดือนหยุดหนึ่งเดือนแล้วค่อยกินต่อ และยาพวกนี้มีผลต่อตับไตมากไหมคะ
http://www.pharmacy.mahidol.ac.th/dic/QA_full.php?id=2528


#VERTIGO #บ้านหมุน #BPPV #Betahistine #SERC #MERISLON
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Betahistine, sold under the brand name Serc among others, is an anti-vertigo medication. It is commonly prescribed for balance disorders or to alleviate vertigo symptoms associated with Ménière's disease. It was first registered in Europe in 1970 for the treatment of Ménière's disease.

>> Low quality evidence suggests that patients suffering from vertigo from different causes may have some benefit from betahistine in terms of reduction in vertigo symptoms. <<

Betahistine is a strong antagonist of the histamine H3 receptor and a weak agonist of the histamine H1 receptor. located on blood vessels in the inner ear. This gives rise to local vasodilation and increased permeability, which helps to reverse the underlying problem of endolymphatic hydrops.

Betahistine is contraindicated for people with pheochromocytoma. People with bronchial asthma and history of peptic ulcer need to be closely monitored.

betahistine may cause several allergic and skin-related side effects. These include rash in several areas of the body; itching and hives; and swelling of the face, tongue and mouth. Other hypersensitivity reactions reported include tingling, numbness, burning sensations, shortness of breath and laboured breathing.
มีรายงานการเกิดอาการไม่พึงประสงค์ต่อตับ คือ มีการเพิ่มระดับของ alkaline phosphatase, gamma-glutamyltransferase, alanine and aspartate aminotransferase แต่ไม่มีรายงานของการพัฒนาไปเป็นตับวายหรือเสียชีวิต
นอกจากนี้ควรระวังการใช้ในผู้ป่วยที่เป็นหอบหืด (bronchial asthma) และ pheochromocytoma

The mean plasma elimination half-life is 3 to 4 hours, and excretion is virtually complete in the urine within 24 hours. Plasma protein binding is very low.

It comes in doses of 6, 16 and 24 mg.The usual dose is 16 mg 3-4 times per day although greater effect is obtained for doses as high as 48 mg at a time

betahistine does not cause drowsiness and has no effect on driving, reaction time or visual acuity. Betahistine can be used in children.

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Betahistine for symptoms of vertigo
http://www.cochrane.org/CD010696/ENT_betahistine-symptoms-vertigo

Serc (betahistine) modified: February 5, 2017
https://www.dizziness-and-balance.com/treatment/drug/serc.html

อยากทราบว่าถ้าเรากินยา merislon นานๆเพื่อใช้ในการรักษาอาการวิงเวียและมีเสียงดังในหูตลอดเวลาแล้วถ้ากินนานๆจะมีอาการข้างเคียงบ้างหรือเปล่าคะ เช่น เป็นอันตรายต่อไตค่ะ
http://drug.pharmacy.psu.ac.th/Question.asp?ID=6626&gid=1


#VERTIGO #บ้านหมุน #BPPV #SERC #Betahistine #MERISLON
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    #VERTIGO #บ้านหมุน #BPPV

    benign paroxysmal positional vertigo (BPPV) – where specific head movements cause vertigo
    labyrinthitis – an inner ear infection caused by a cold or flu virus
    Ménière's disease – a rare inner ear condition, which sometimes involves ringing in the ear (tinnitus) or loss of hearing

    vestibular neuronitis – inflammation of the vestibular nerve

    migraine

    Vertigo isn’t the only reason you might feel dizzy, so if symptoms seem to keep coming back, it’s a good idea to get a blood test done and speak with your doctor. Vitamin B12 deficiency, low blood pressure, anemic symptoms, heart complications and even anxiety can all contribute to dizziness,

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    แยกระหว่าง PERIPHERAL & CENTRAL VERTIGO
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3853661/table/T1/

    PERIPHERAL
    เฉียบพลัน รุนแรง นานเป็นนาที / ชั่วโมง
    มีเสียงจิ้งหรีดร้อง เสียงลมออกหู

    CENTRAL VERTIGO
    เกิดค่อยเป็นค่อยไป พอทนได้ นานเป็นวันหรือสัปดาห์
    ตากระตุก ไม่มีเสียงลมออกหู

    >>>>>>>>>>>>>>

    BPPV can be mistaken for a stroke.

    BPPV – nausea, dizziness, light-headedness and loss of balance – are also signs of stroke
    "BPPV tends to come and go, and symptoms last only about 30 seconds, whereas stroke symptoms are continuous."

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    Classification of drugs that may cause vertigo or dizziness as an ADR
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3853661/table/T2/

    QUINOLONES
    MACROLIDES
    aminoglycoside
    ITRACONAZOLE
    Quinine CHLOROQUINE

    Loop diuretics FUROSEMIDE HCTZ
    ACEi AMLOPINE
    SIMVAS

    CARBOCYSTEINE

    Salicylates NSAID ASA PARA

    SERTRALNE AMITRYP
    CHLORPROMAZINE
    LEVODOPA

    Antineoplastic drugs such as cisplatin

    ARSENIC MERCURY

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    TREATMENT

    ACUTE VERTIGO

    Antihistamines prevent motion sickness and reduce the severity of symptoms
    Dimenhydrinate - 25 to 100 mg orally
    diphenhydramine

    Anticholinergics are vestibular suppressants that inhibit firing in vestibular nucleus neurons6 as well as reduce the velocity of vestibular nystagmus

    viral infection causing the labyrinthitis or neuritis, antiviral medications like acyclovir (Zovirax) or valacyclovir (Valtrex)

    Vestibular Migraine - triptans
    Prophylactic treatment protocols are based on the ones from migraine headache.
    Pharmacotherapy used in prevention of migraine attacks includes: as first line-β-blockers: metoprolol (50- 100 mg/day), flunarizine (5-10 mg/day), anticonvulsants: valproic acid (Depakine Chrono 500-800 mg 2 times a day) and topiramate (50- 100 mg/day, starts from 12.5 mg), and as second-line-amitriptyline, venlafaxine, naproxen, bisoprolol [

    Ménière’s Disease
    stop vertigo attacks, abolish tinnitus and reverse or preserve the hearing loss.
    prevention of new attacks and the treatment of audio-vestibular dysfunction.
    dietary salt restriction (1-2 gram salt diet) and adequate hydration (35 ml/kg of liquids). Patients should also avoid caffeine and stop smoking.

    betahistine regimen is widespread worldwide, with a survey in England reporting that 94% of ENT surgeons prescribe betahistine to their Ménière's patients. The underlying mode of action is believed to be through increased inner-ear blood flow, with local vasodilation and increased permeability, thereby relieving pressure from the inner ear. A long-term high-dose treatment with betahistine (at least 48 mg three times daily), has shown a significant effect on the frequency of the attacks

    central causes of vertigo need further investigation and treatment

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    BT-SEMINAR VERTIGO
    https://www.youtube.com/watch?v=LAgP0Sq9roI

    บ้านหมุน
    https://www.pobpad.com/บ้านหมุน

    Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update March 1, 2017)
    http://journals.sagepub.com/doi/pdf/10.1177/0194599816689667

    Treatment of Vertigo
    https://www.aafp.org/afp/2005/0315/p1115.html

    Vertigo Treatment - How To Treat Vertigo
    https://www.youtube.com/watch?v=1VWyPgfMuvM

    How to Get Rid of Vertigo
    https://draxe.com/how-to-get-rid-of-vertigo/

    Vertigo/dizziness as a Drugs’ adverse reaction
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3853661/

    This is life with MdDS
    https://youtu.be/yuKE4wdhkT8

    Medicine-induced Vertigo
    http://www.medsafe.govt.nz/profs/PUArticles/March2017/MedicineInducedVertigo.htm

    Vertigo Caused by Medication
    http://www.fpnotebook.com/ENT/Pharm/VrtgCsdByMdctn.htm

    Can medications actually cause vertigo?
    http://www.dizzyfix.com/2011/10/can-medications-actually-cause-vertigo.html

    Vestibular Disorders > Treatment
    http://vestibular.org/understanding-vestibular-disorders/treatment/vestibular-medication

    Current Views on Treatment of Vertigo and Dizziness
    https://www.omicsonline.org/open-access/current-views-on-treatment-of-vertigo-and-dizziness-2168-9784.1000150.php


    Misunderstood and often misdiagnosed, the mystery of vertigo
    http://www.cbc.ca/news/health/misunderstood-and-often-misdiagnosed-the-mystery-of-vertigo-1.2748513







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