Indications
Therapeutic Class
Pharmacology
Hydrochlorothiazide is a diuretic (benzothiadiazine) affecting the distal renal tubular mechanism increase excretion of sodium and chloride and resulting reduced blood volume or Cardiac output.
Individually Bisoprolol Fumarate and Hydrochlorothiazide used as antihypertensive agent and combination of these two drugs brings maximum response in treatment of hypertension. Hydrochlorothiazide significantly increases the antihypertensive effect of Bisoprolol Fumarate. The incidence of hypokalemia is less due to low dose of Hydrochlorothiazide.
Dosage & Administration
Initial Therapy: Antihypertensive therapy may be initiated with the lowest dose of Bisoprolol & Hydrochlorothiazide, one 2.5/6.25 mg tablet once daily. Subsequent titration (14 day intervals) may be carried out with Bisoprolol & Hydrochlorothiazide tablets up to the maximum recommended dose 20/12.5 mg once daily, as appropriate.
Replacement Therapy: The combination may be substituted for the titrated individual components.
Therapy Guided by Clinical Effect: A patient whose blood pressure is not adequately controlled with 2.5-20 mg Bisoprolol daily may instead be given Bisoprolol & Hydrochlorothiazide. Patients whose blood pressures are adequately controlled with 50 mg of hydrochlorothiazide daily, but who experience significant potassium loss with this regimen, may achieve similar blood pressure control without electrolyte disturbance if they are switched to Bisoprolol & Hydrochlorothiazide.
Interaction
Contraindications
Side Effects
Pregnancy & Lactation
Lactation: Bisoprolol alone or in combination with Hydrochlorothiazide has not been studied in nursing mothers.
Precautions
If withdrawal of this combination therapy is planned, it should be achieved gradually over a period of about 2 weeks. Patients should be carefully observed.
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