INFLUENZA (the Flu) The flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. It can cause mild to severe illness and at times can lead to death. The best way to prevent the flu is by getting a flu vaccine each year. FLU BASICS â¢ General Flu Facts â¢ Cold vs Flu
Hyzaar. Do not use this medicine if you have had an allergic reaction to losartan, hydrochlorothiazide, or a sulfonamide (sulfa drug). Do not use this medicine if you are pregnant or you are not able to urinate. Do not use this medicine together with aliskiren (TekturnaÂ®) if you have diabetes or severe kidney disease.
No, Ritalin is does not contain sulfa and does not even have a sulfur atom within its structure to form the basis of sulpha. There are a number of medications besides antibiot â¦ ics which do contain sulpha groups and which should be avoided by people with such allergies, but Ritalin is not one of them.