Medical Definition of Sulfa drug Sulfa drug: One of the sulfonamides, the sulfa-related antibiotics which are used to treat bacterial and some fungal infections. The first sulfa drug was prontosil. It was discovered by the German physician and chemist Gerhard Domagk in 1935. Sulfa drugs kill bacteria and fungi by interfering with their metabolism. They were the wonder drugs before penicillin and are still used today.
NEXT STEP. Find out how much your project will cost. Provide a few details about your project and receive competitive quotes from local pros. The average national cost to install a geothermal heating or cooling system is $5,745, with most homeowners spending between $3,534 and $11,089.
the initial cost for the field and power plant is around $ 2500 per installed kw operating and maintenance costs range from $ 0 01 to $ 0 03 per kwh most geothermal power plants can run at greater than 90 % availability i e producing more than 90 % of the time but running at 97 % or 98 % can increase maintenance costs