Final answer:
Sodium bicarbonate is the medication that may be administered for a patient with an overdose of tricyclic antidepressants exhibiting ventricular tachycardia or other dysrhythmias.
Step-by-step explanation:
When a patient presents with an overdose of tricyclic antidepressants and exhibits ventricular tachycardia or other dysrhythmias, the medication that may be administered is sodium bicarbonate. Sodium bicarbonate is used to correct the acidosis that is caused by tricyclic antidepressant toxicity, which in turn helps to stabilize the patient's heart rhythm.