influenza
"I was achy, feverish (100.4) and had a severe headache.I felt like a truck ran me over. I went to the Dr. and was prescribed Tamiflu. I took the first dose and noticed a difference. I didnt have nausea, insomnia or diarrhea. No side effects. I was skeptical as viral infections have to run their course but I'm so happy I took it."