Thanks for posting your query.
Why was your wife taking zapiz?
Is she suffering from panic attacks?
Why doctor has advised for sudden stop of medicine? Is she suffering from any side effect?
If your wife was taking zapiz because of panic attacks then there may be chances of getting attacks on stopping zapiz.
These mentioned symptoms may not be due to zapiz withdrawal.
Presence of abdominal symptoms may be due to gastric problems and you should go for endoscopy
For breathlessness, you should also go for chest x ray
along with ECG.
You should also consult with physician and cardiologist and should take proper treatment.
Dr. Mayank Bhargava