Fluoroquinolones Are Very Effective Against Both Gram-Negative and Gram-Positive Organisms

Fluoroquinolones are very effective against both gram-negative and gram-positive organisms.Several of the drugs in this class have been discontinued from use.What adverse effects have caused the removal of these drugs from the market?

A) The development of pathologic fractures after administration of fluoroquinolones
B) The development of severe phototoxicity after administration of fluoroquinolones
C) The development of dysrhythmias after administration of fluoroquinolones
D) The development of insomnia after administration of fluoroquinolones