bacterial infection
"This drug need to be taken out of the market!!! Why ? 
1. Kills all your good bacteria. Doctor's  don't inform you this and try to give you a diet where you gain back your good bacteria. 
2. Yellow tongue - kills all good bacteria. 
3. Like other user stated. You feel like something stock in your throat. 
ASK YOUR DOCTOR HOW TO HELP YOUR BODY GET YOUR GOOD BACTERIA."