Contraindications can be <u>hypersensitivity</u> ( which can include swelling of the mouth & throat or unexplained rash and <u>ventricular fibrillation</u> ( an irregular heart rhythm)
Precautions: make sure you talk to your doctor and give a complete history. Notify the doctor of any other medication you may be taking as Lanoxin has serious to moderate interactions with at least 250 other drugs.
I believe the answer is the Exhaustion stage because it is the bodies reaction to stress. The body becomes extremely susceptible to sickness because it seems to lose to respond to any new stress. Hope I helped!