I have never heard this. I'd like to know more if you have a specific reference.
The book is at any major book retail store and also at most health oriented food stores if they have a book section. Was it a coincidence that my dad had the side effects he said to look out for and many more? Will try to research this further.
I found "Eat Right For Your Type" online, it talks about different classes of antibiotics that each blood type should avoid. If you search for "quinolone", it should take you to the paragraph that talks about Type AB and B and avoiding quins.
http://www.scribd.com/doc/208044/dAdamo-Peter-J-Eat-Right-for-Your-Type-Blood-Groups
peter d adamo blood types type b antibiotics dad drugs food stores retail store coincidence book section classes of antibiotics dadamo blood groups type blood scribd quins type ab blood type paragraph