401474e9_ta_Barbara__CA___Sansum_Clinic_d_risks_of_heart_failure_drugs_Benefits
[Drug or class of drugs] Beta-blockers [Risks] Heart rate too slow [Benefits] 
Reduce heart failure symptoms Prolong survival Prevent ventricular arrhythmia Slow heart rate improves diastolic heart failure.
Risks and Benefits of Medicines for Heart Failure, Special Information in Santa Barbara, CA - Sansum Clinic
Benefits