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. 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.he fact is that these medicines are fake, substandard, and potentially dangerous. Generic Enbrel may be available from another country, but there is really no way of knowing if you are getting genuine Enbrel or not. You should not buy any so-called generic versions until an approved generic is available.