Propranolol
"My 15 year old daughter suffers from severe anxiety and panic attacks, her psychiatrist put her on 10mg of Propranolol once daily as SSRI's weren't helping.  The medication worked well and she felt less anxious within a few days, she did feel she needed a slightly higher dose for really high anxiety provoking situations, however her doctor didn't want to increase her does.  After 1 month of being on medication I noticed she was shedding a lot of hair.  She immediately stopped taking the medication as I knew this was a "rare" side effect.  4 weeks since she has been off she is STILL shedding lots of hair and overall lost about 30% of her hair.  Pray everyday it will stop as it is devastating.  Think twice before taking this med."