I wonder why this chat has gone quiet - there must be many of us struggling with Letrozole and getting different brands every month.  Is there nothing that can be done to ensure people get the brands that suit them? Month after month I trail around the pharmacies in my area and am generally offered Sun or Accord, neither of which I can take.    Sun made me feel very unwell and I couldn’t stay awake, Accord was worse and I had chest pain, breathlessness and swollen legs.  Crescent is wonderful and I don’t know I’m taking it - but it’s almost impossible to source.  Pharmacies generally seem fairly unhelpful, but I guess it’s because they have no control over what is sent to them.  Could it be possible for a central register to be created so users could know what brands are available where at any given time, or is that a pie in the sky idea?