Inotropic support: vasopressor
Following verapamil or diltiazem poisoning, if the patient has vasoplegic shock, use:
noradrenaline (norepinephrine) by intravenous infusion (see Noradrenaline (norepinephrine) intravenous infusion instructions for advice on preparation and administration). CCB verapamil and diltiazem poisoning
If there is ongoing hypotension despite treatment with noradrenaline, in addition, use:
argipressin (vasopressin) by intravenous infusion (see Argipressin (vasopressin) intravenous infusion instructions for advice on preparation and administration).
Discuss the use of argipressin (vasopressin) with a clinical toxicologist.
For treatment of refractory hypotension and cardiac arrest, see here.