<prompt> After staing your patient on imipramine, his hea rate rises to 120min and he has blurred vision. These effects can be explained by the fact imipramine:Is a muscarinic antagonistPotentiates epinephrineIs a ganglionic blockerIs a potent a-adrenergic blocker  <response>: Ref: KDT 6e p444 These symptoms are of anticholinergic drugs. Tricyclic antidepressants have powerful anticholinergic propeies and can lead to these symptoms. 