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Indications And Usage Metolazone Is Indicated For The Treatment Of Salt And Water Retention Including: • Edema Accompanying Congestive Heart Failure; • Edema Accompanying Renal Diseases, Including The Nephrotic Syndrome And States Of Diminished Renal Function. Metolazone Is Also Indicated For The Treatment Of Hypertension, Alone Or In Combination With Other Antihypertensive Drugs Of A Different Class. Mykrox ® Tablets, A More Rapidly Available Form Of Metolazone, Are Intended For The Treatment Of New Patients With Mild To Moderate Hypertension. A Dose Titration Is Necessary If Mykrox ® Tablets Are To Be Substituted For Zaroxolyn ® Tablets And Other Formulations Of Metolazone That Share Its Slow And Incomplete Bioavailability, In The Treatment Of Hypertension. Usage In Pregnancy The Routine Use Of Diuretics In An Otherwise Healthy Woman Is Inappropriate And Exposes Mother And Fetus To Unnecessary Hazard. Diuretics Do Not Prevent Development Of Toxemia Of Pregnancy, And There Is No Evidence That They Are Useful In The Treatment Of Developed Toxemia. Edema During Pregnancy May Arise From Pathologic Causes Or From The Physiologic And Mechanical Consequence Of Pregnancy. Metolazone Is Indicated In Pregnancy When Edema Is Due To Pathologic Causes, Just As It Is In The Absence Of Pregnancy (See Precautions ). Dependent Edema In Pregnancy Resulting From Restriction Of Venous Return By The Expanded Uterus Is Properly Treated Through Elevation Of The Lower Extremities And Use Of Support Hose; Use Of Diuretics To Lower Intravascular Volume In This Case Is Illogical And Unnecessary. There Is Hypervolemia During Normal Pregnancy Which Is Harmful To Neither The Fetus Nor The Mother (In The Absence Of Cardiovascular Disease), But Which Is Associated With Edema, Including Generalized Edema, In The Majority Of Pregnant Women. If This Edema Produces Discomfort, Increased Recumbency Will Often Provide Relief. In Rare Instances, This Edema May Cause Extreme Discomfort Which Is Not Relieved By Rest. In These Cases, A Short Course Of Diuretics May Be Appropriate.
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