Aasar told Carrie to meet him at Terminal Three. Islamabad Airport only has two terminals.
Nortriptyline (brand name: Pamelor), the medication that was switched out in Carrie's bathroom, is a maintenance antidepressant, meaning that it is useless to take as needed for anxiety like Carrie does. Belonging to the class of tricyclic antidepressants, it is very outdated and rarely ever used for depression and/or bipolar disorder anymore (its main use nowadays is to treat nerve pain and/or prevent migraine type headaches) due to its vast side effects, mainly excessive drowsiness. If used, it is advised to every user to be taken at bedtime, and any patient on this medication knows about marked drowsiness to occur. Knowing this, she would not have used Nortriptyline to treat a sudden attack. Two of her other medications are suited for this, and prescribed on an "as needed" basis: Lorazepam (Ativan) and clonazepam (Klonopin) - suffering with her condition, she would have known to take either of these.
At 43:40, the subtitles say that the men are speaking Arabic. They would have been speaking either Pashto, Urdu, or Dari. The closest country where Arabic is spoke (Iraq) is 500 miles away.