Gastroenterology Book

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SimethiconeAka: Gas-X, Mylicon, Phazyme

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  1. Indications
    1. Eructation
    2. Flatulence
  2. Dose
    1. Adults: 40-125 mg po qid
    2. Infants: 0.3 ml PO qid prn
  3. Pharmacokinetics
    1. Not absorbed
  4. Efficacy
    1. Several controlled clinical trials have been performed
    2. No evidence that simethicone is better than Placebo

Simethicone (C0037138)

Definition (MSH)A poly(dimethylsiloxane) which is a polymer of 200-350 units of dimethylsiloxane, along with added SILICA GEL. It is used as an antiflatulent, surfactant, and ointment base.
Definition (NCI)A mixture of polydimethylsiloxanes with antifoaming and anti-bloating effects. Simethicone reduces the surface tension of gas bubbles causing them to coalesce into larger bubbles that can be passed more easily by belching or flatulence.
ConceptsOrganic Chemical (T109) , Pharmacologic Substance (T121) , Biomedical or Dental Material (T122)
EnglishActivated dimethicone, Activated methylpolysiloxane, Simethicone, SIMETHICONE PREPARATION, Simeticone
Spanishdimeticona, dimeticona activada, metilpolisiloxano activado, simeticona
CreditsDerived from the NIH UMLS (Unified Medical Language System)


Mylicon (C0721886)

ConceptsOrganic Chemical (T109) , Pharmacologic Substance (T121)
EnglishMylicon
CreditsDerived from the NIH UMLS (Unified Medical Language System)


Phazyme (C0722576)

ConceptsOrganic Chemical (T109) , Pharmacologic Substance (T121)
EnglishPhazyme
CreditsDerived from the NIH UMLS (Unified Medical Language System)



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