We once bought this cold and flu medicine, Procold tablet, because a friend of mine recommended it to me. This is not our regular cold and flu medicine (we usually consume alternative medicine, or else, a very light flu medicine), but we decided to try it out anyway. This medicine comes in pack of six tablets, and cost us around $.02 - $0.3 a pack. This medicine is made by Kalbe Farma, a well-known medicine manufacturer in our country. It claimed it could ease flu symptoms such as fever, headache, sneezing, and even cough. Well, it did actually. My hubby suffered from cough and fever and in a day he took a tablet (or two, I think) of Procold, the next day he felt better. The result was instant, yes, indeed. But the side effects, geez. It made him sleepy the whole day and he said he had palpitation (rapid heart beating). I was afraid if something bad would happen to him, so I told him not to consume it again the next day, and to take our regular flu medicine instead. Well, from this experience I learn that we should be very careful to choose the right medicine, even if it's only a flu medicine. It may not have side effects for some people, but for others, we don't know. So, consider the side effects as well when choosing a cold and flu medicine.