I’ve had gMG for 3 years.  Had 2 Retux infusions and passed up on my third one because of the introduction of Covid vaccines.  Got all the Covid shots plus 2 Evusheld shots.  The Retux in combination with Mesthenon worked great.  But over time, fatigue plus a little ptosis became apparent, so my neurologist suggested another set of infusions.  Just completed my second infusion last week.  I’ve experienced no negative effects from Retux.  The only cautionary note is that this stuff is highly immunosuppressive, so keep away from superspreader events and mask up during the Covid/flu/rsv season.