Wow, I also see Dr. Abdallah... I have been seeing him for a year now...He is a very compassionate man with alot of understanding in the area of circulation...But as far as POTS goes...I have to say that there have been several occasions where I have had information that may have been helpful with treating my POTS...(Because I have been a tough case for him, I am hypersensitive to everything...even tylenol...)And found that not only did he not know about this type of treatment nor did he want to explore it with me.. I have also been frustrated with the office staff not returning my phone calls and have waited days for them to do so and ended up calling them back even more frustrated than before.. What I do realize is, is that he overextends himself, he is such a great person that he takes his time with you, He makes sure that you have all questions answered to the best of his ability...He would go that extra mile for any of his patients I am sure..He spreads himself so thin that I at times worry more about his health than my own...and stress this to him...I went for an appointment earlier this month and was not doing so well,every medication that he has tried has only made my condition worse So I was so upset...not with him however, but with this stupid POTS...That I cried...I just want to feel better...and like so many of us...get so annoyed at the fact that there is only so much that can be done...He sat with me and expressed his sympathy by giving me a hug and encouraging me to keep faith...So I felt like crap, atleast someone understood and took the time to listen.. 2weeks later I was here on the fourm and read about someone having a pretty good outcome with Aderall...This was new to me so I started to research it a little... I found that it was used for ADD and really wanted to try this...Knowing also that the person who had tried this was seeing Dr. Grubb...I called Dr. Abdallahs office on Monday am. and talked to one of the girls in the front office...I told them everything that I just stated here and was really excited about having him call in a script fpr me...She took my info and said that she'd have him call me back... 2 days went by and nothing....I called on that 3rd day and said can you please tell me why I haven't heard anything??? Well , she said, I gave him the message and told him to call...she then said that she would catch him between patients and have him call...I said great....Thanks...Still no call...So on that 4th day, again I called... This time he wasn't in yet and wouldn't be in for a few hours..So I asked if they would have him call before he started to see his patients...She said she would try...Good enough for me..I again waited...Nothing ...The next day was Friday..I knew he'd be in Sterling so I called ...Knowing that he is usually a little late, I waited till 10:30..When I called this is what I was told....Dr. Abdallah said that he cannot call in a script for this because this Aderall is not for POTS, it is used to treat ADD... I said I knew this yet I have read about it ..BLAH...BLAH...BLAH...... and look, I just want to talk to him about it...This didn't happen...Anyway..I have another appointment early in Aug. Thank goodness...I will discuss it with him then... Sorry to go on so but my experience is...And I have gone to and still do use Dr. Khurana in Baltimore..... Everyone knows what they expect and what they need out of their Doctors. Always have a back up plan....Just incase you find that it isn't working out.. I feel very confident that if you decide to see Dr.Abdallah that you will be pleased with him..Just be patient..As much as you can anyway...and keep in mind that he has a very heavy caseload now and that there may be times that you feel as though you aren't getting what you need....Just as you would anywhere else you go to get treatment for something of this complexity...And know also that it's just as frustrating for them as it is for us... Good luck and hope you have a great experience...