Part 1: Understanding Osteoporosis

Yes, the correct answer is "corticosteroids."

Corticosteroids, also known as "glucocorticoids" or simply "steroids" are potent anti-inflammatory and immunosuppresive medications used for the treatment of disorders such as*:

rheumatoid arthritis, osteoarthritis, bursitis
asthma, chronic obstructive pulmonary disease, allergic rhinitis
chronic active hepatitis
lupus erythematosus, psoriasis, severe dermatitis
ulcerative colitis, Crohn's disease
severe allergic reactions and inflammations
inflammation and diseases of the eye
following organ transplantation
multiple sclerosis
leukemia, lymphoma, and other cancers - used in conjunction with chemotherapy

*Source: "Medications and Bone Loss," National Osteoporosis Foundation