U.S. Brand Names:
Ziac®
Synonyms:
Hydrochlorothiazide and Bisoprolol
Generic Available:
Yes
Canadian Brand Names:
Ziac®
Use:
Treatment of hypertension
Pregnancy Risk Factor:
C/D (2nd and 3rd trimesters)
Lactation:
Enters breast milk/use caution
Adverse Reactions:
>10%: Central nervous system: Fatigue
1% to 10%:
Cardiovascular: Chest pain, edema, bradycardia, hypotension
Central nervous system: Headache, dizziness, depression, abnormal dreams
Dermatologic: Rash, photosensitivity
Endocrine & metabolic: Hypokalemia, fluid and electrolyte imbalances (hypocalcemia, hypomagnesemia, hyponatremia), hyperglycemia
Gastrointestinal: Constipation, diarrhea, dyspepsia, nausea, insomnia, flatulence
Genitourinary: Micturition (frequency)
Hematologic: Rarely blood dyscrasias
Neuromuscular & skeletal: Arthralgia, myalgia
Ocular: Abnormal vision
Renal: Prerenal azotemia
Respiratory: Rhinitis, cough, dyspnea
<1% (Limited to important or life-threatening): Angioedema, bronchospasm, CNS depression (sedation), exfoliative dermatitis, gout, hypercalcemia, orthostasis, pancreatitis, paresthesia, Peyronie's disease, syncope, vasculitis
Drug Interactions:
Bisoprolol:
Substrate of CYP2D6 (minor), 3A4 (major)
Also see individual agents.
Pharmacodynamics/Kinetics:
See individual agents.
Dosage:
Oral: Adults: Dose is individualized, given once daily
Patient Education:
See individual agents. Pregnancy/breast-feeding precautions: Inform prescriber if you are or intend to become pregnant. Consult prescriber if breast-feeding.
Nursing Implications:
Monitor blood pressure, ECG
Cardiovascular Considerations:
Combination therapy for the treatment of hypertension should be individualized for each patient. Potential advantages for bisoprolol and hydrochlorothiazide combination therapy may include improved compliance and synergistic reductions in blood pressure with an accomplished reduction in side effects. Beta-blockers and thiazide diuretics are first-line therapies for the treatment of hypertension. See Special Cardiovascular Considerations for individual agents.
Dental Health: Effects on Dental Treatment:
Bisoprolol is a cardioselective beta-blocker. Local anesthetic with vasoconstrictor can be safely used in patients medicated with bisoprolol. Nonselective beta-blockers (ie, propranolol, nadolol) enhance the pressor response to epinephrine, resulting in hypertension and bradycardia; this has not been reported for bisoprolol. Many nonsteroidal anti-inflammatory drugs, such as ibuprofen and indomethacin, can reduce the hypotensive effect of beta-blockers after 3 or more weeks of therapy with the NSAID. Short-term NSAID use (ie, 3 days) requires no special precautions in patients taking beta-blockers.
Dental Health: Vasoconstrictor/Local Anesthetic Precautions:
No information available to require special precautions
Mental Health: Effects on Mental Status:
Fatigue is common; may cause insomnia, confusion, depression, dizziness, headache, sleep disturbance, vivid dreams, anxiety, restlessness, and decreased concentration
Mental Health: Effects on Psychiatric Treatment:
Barbiturates may decrease the effects of beta-blockers; may decrease lithium clearance, resulting in elevated serum lithium levels and potential lithium toxicity; monitor serum lithium levels
Dosage Forms:
Tablet:
2.5/6.25: Bisoprolol fumarate 2.5 mg and hydrochlorothiazide 6.25 mg
5/6.25: Bisoprolol fumarate 5 mg and hydrochlorothiazide 6.25 mg
10/6.25: Bisoprolol fumarate 10 mg and hydrochlorothiazide 6.25 mg
International Brand Names:
Ziac® (CA)
References
Chobanian AV, Bakris GL, Black HR, et al, "The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: The JNC 7 Report,"JAMA, 2003, 289(19):2560-71.
Kaplan NM and Sever PS, "Combination Therapy: A Key to Comprehensive Patient Care,"Am J Hypertens, 1997, 10(7 Pt 2):127S.
Moser M and Black HR, "The Role of Combination Therapy in the Treatment of Hypertension,"Am J Hypertens, 1998, 11(6 Pt 2):73S-8S, 95S-100S.