Osteoporosis is common in people with cystic fibrosis (a build-up of mucus in the lungs). This is due to poor absorption of fat, which leads to vitamin D deficiency. Calcitriol taken by mouth appears to increase calcium absorption.
Antibiotics such as penicillin and amoxicillin (Amoxil) are used for a variety of infections that may result after dental procedures. Erythromycin (Benzamycin, Emgel, Ery, Ilotycin, Staticin) is usually prescribed when patients have allergies to penicillin or amoxicillin (Amoxil).
An antibiotic is a substance used to kill bacteria. If you're coughing up green stuff, the doctor might give you an antibiotic to fight the infection. Since the prefix anti- means fighting, opposing, or killing, and bios is the Greek word for life, antibiotic literally means life-killing. But doctors prescribes them primarily to kill the bacteria responsible for infections in the body. (A virus, on the other hand, cannot be treated with an antibiotic, so doctors are always making a distinction between a virus and a bacterial infection.) You can also use antibiotic as an adjective.