Bitter taste in mouth biaxinBitter Taste; Biaxin 500mg; Whooping Cough; Mood SwingsINTOLERABLE bitter taste in my mouth, and sudden onset of . . . Having a metallic or foul, bitter taste in the mouth is . . . . . . Nasty bitter taste, reduced sense of smell . Comments: Took Biaxin twice per day (1,000mg total daily) and used Nasocort inhaler for inflammation of . I was prescribed Biaxin for a URI and bronchitis AFTER I took another . . . . . . . . . very intense bitter taste in my mouth that,w... more