influenza
"Tamiflu made a miracle for me. It is my second time on Tamiflu (first one was two years ago). Both times I had classic flu symptoms. Felt the onset of great misery. Made hard effort to start taking Tamiflu ASAP - within first 12 hours. My understanding is that the time is crucial to the effectivenes. Both times I was practicaly cured within first 24 hours after. Only some tiredness remained for couple of days. No side effects in my case. I think lot of diarrhea  complains that people attribute to Tamiflu are in fact flu related- so they would have it anyway. Make sure to complete the whole course - otherwise flu can return."