Verapamil

• Trade – Isoptin
• Class – Calcium Channel blocker
• MOA – Blocks calcium from moving into the heart muscle cell, which prolongs conduction of the electrical impulses through the AV node.
• Indications – AF, HTN, paroxysmal SVT, Paroxysmal SVT prohylaxis
• Contraindications – 2nd or 3rd degree AV block, Hypotension, cardiogenic shock, Sick sinus syndrome, WPW.
• Side effects – Sinus bradycardia, 1st, 2nd, or 3rd degree AV blocks, CHF, reflex tachycardia, transient asystole, hypotension.
• Dosing 

Adult

 2.5-10mg IV/IO over 2 minutes. May repeat at 5-10mg every 15-30 mins to a maximum dose of 30mg

Pedi 

1-16 years old: 0.1mg/kg IV/IO max single dose 5mg over 2mins may repeat in 30 mins to a max dose of 10mg