Serc is not FDA approved in the US. It has never been shown to have a worthwhile benefit.
Have you had a vestibular evaluation yet? Has anybody tried the Epley Maneuver or similar therapy for your dizziness?
You can see a do it yourself video of the Epley Maneuver on YouTube. It is not a risky treatment.
Mark in Idaho
58 years old, retired due to disability, married 33 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after last concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate and short term visual and auditory memory problems, slowed processing speed, visual and auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine and gabapentin for 12 years. Added L-Tryptophan and reduced paroxetine by half 3/2013
"Be Still and Know That I am God" Psalm 46:10