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. 2012 Feb 4;8(2):135–139. doi: 10.1007/s13181-011-0209-8

Table 2.

Medications involved in symptomatic cases (N = 44)

beta-Blockers (n = 31) Calcium channel blockers (n = 16)
BB only = 28 CCB only = 13
Metoprolol 13 (IR = 10; NIR = 3) Diltiazem 8 (NIR = 7; IR = 1)
Atenolol 10 Verapamil (NIR) 4
Propranolol 5 Amlodipine 2
Carvedilol 1 Isradipine 1
Labetalol 1 Nifedipine 1
Sotalol 1

BB beta-blocker, CCB calcium channel blocker, IR immediate release formulation, NIR non-immediate release formulation