What is the most important information I should know about Biaxin XL?
• Take all of the Biaxin XL that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated. • Do not take Biaxin XL if you are taking cisapride (Propulsid), pimozide (Orap), or terfenadine (Seldane). These medicines can interact, possibly leading to a dangerous irregular heartbeat pattern.