Typical dose is 1 to 2mg per kilogram twice daily. Pet owners should never give human Lasix to animals without veterinary guidance. Human tablets contain binders and coatings that may harm animals. Incorrect dosing causes severe dehydration, electrolyte imbalance and kidney damage. Veterinary formulations are available through compounding. Medscape - Hypertension-specific dosing for Lasix, Furoscix (furosemide), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and. Furosemide belongs to a class of drugs called diuretics. Furosemide is available in a brand-name version. This article describes the dosages of furosemide, its strengths, and how to take it. Detailed Furosemide dosage information for adults and children. Includes dosages for Hypertension, Edema, Congestive Heart Failure and more; plus renal, liver and dialysis adjustments. Detailed dosage guidelines and administration information for Lasix (furosemide). Includes dose adjustments, warnings and precautions. The typical Lasix dosage for high blood pressure is 80 mg, usually divided into two doses (40 mg twice a day). Your healthcare provider may adjust your dose until your blood pressure is at the desired goal, which can be different for each person. Dosing The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. The typical starting dosage of furosemide for adults with high blood pressure is 40 mg twice per day. Your doctor may adjust your dosage based on how you respond to the medication. Recommended Dosage of Furosemide (Lasix) The recommended initial dosage of furosemide is 20-80 mg given as a single oral dose for adults with edema, with dose adjustments based on clinical response. 1 For acute heart failure with volume overload, start with intravenous furosemide 40-120 mg as a single bolus, with most patients responding promptly to this range due to improved bioavailability compared to oral administration 1.