Categorical variables are also known as qualitative (or discrete) variables. These categorical variables can be further classified as being nominal, dichotomous or ordinal variables. Each of these types of categorical variable (i.e., nominal, dichotomous and ordinal) has what are known as categories or levels. These categories or levels are the descriptions that you give a variable that help to explain how variables should be measured, manipulated and/or controlled.
BetimolÂ® (timolol ophthalmic solution), 0.25% and 0.5%, is a non-selective beta-adrenergic antagonist for ophthalmic use. The chemical name of the active ingredient is (S)-1-[(1,1-dimethylethyl)amino]-3-[(4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]oxy]-2-propanol. Timolol hemihydrate is the levo isomer.
No -- etanercept is the active ingredient in Enbrel, but is not a generic version of it. What can be confusing is that, oftentimes, the active ingredient of a drug is referred to as the generic name.. The generic name is different from a generic version of a medicine.ou should not buy any generic versions until an approved version is available. This is a difficult question. Unless the laws and rules are changed, generic etanercept will never be available. However, it is likely that these rules and laws will be changed in the future.