5. Atenolol :
Trade name: Normatin
Class: Beta-adrenergic blocking agent
Pregnancy: (Category D)
Action: Beta-adrenoceptor blocking " anti hypertensive, anti anginal"
Uses:
· Hypertension.
· Angina pectoris.
Dose: by mouth, Hypertension, 50 mg daily (higher doses rarely necessary)
Angina, 100 mg daily in 1 or 2 doses
Arrhythmias, 50–100 mg daily
By intravenous injection, arrhythmias, 2.5 mg at a rate of 1 mg/minute, repeated at 5-minute intervals to a max. Of 10 mg
Contraindications:
· Bradycardia, C.H.F., cardiogenic shock, diabetes, thyrotoxicosis, chronic bronchitis, asthma, bronchospasm, emphysema.
Side effects:
· Bradycardia, C.H.F., hypotension, cold extremities (due to peripheral vasoconstriction), edema, dyspnia, shortness of breath, nausea, vomiting, hepatomegaly and bronchospasm.
Nursing considerations:
- For IV use, the drug may be diluted in sodium chloride, dextrose, on dextrose saline.
- Instruct patient/family to take blood pressure and pulse.
- Provide written instructions as when to call physician (e.g. HR below 50 beat/min).
- Instruct patient to dress warmly during cold weather.
- Diabetic patient should be very careful about symptoms of hypoglycemia.
- Report any asthma-like symptoms.
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