The women that were studied were split into two groups: Those that got breast cancer and those that did not get breast cancer. 1  Of those women that got breast cancer, 99% wore their bras for longer than 12 hours per day, and only 1% wore their bras for less than 12 hours per day .
pharmaceutical - drug or medicine that is prepared or dispensed in pharmacies and used in medical treatment. pharmaceutic. medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease.
Pharmacology is the branch of biology concerned with the study of drug action, where a drug can be broadly defined as any man-made, natural, or endogenous (from within body) molecule which exerts a biochemical or physiological effect on the cell, tissue, organ, or organism (sometimes the word pharmacon is used as a term to encompass these endogenous and exogenous bioactive species).