Pharmaceutical containers comprising necks with non-uniform outer surfaces and methods regarding the same

A pharmaceutical container comprising:

• a glass body enclosing an interior volume of the pharmaceutical container, the glass body comprising:
• a central axis extending through a geometric center of the interior volume;
• a wall thickness extending between an inner surface and an outer surface, wherein outer surface comprises a first transition region extending between the neck and the underside surface, and at least a portion of the first transition region is disposed radially inward of an outer portion of the outer surface within the neck that is most radially distant from the central axis, the first transition region having a first radius of curvature;
• a flange comprising an underside surface;
• a shoulder;
• and
• a neck extending between the flange and the shoulder, wherein, within at least a portion of the neck, the outer surface extends inward toward the central axis such that at least a sloped portion of the outer surface is sloped inward towards the central axis adjacent the flange, the outer surface within the neck comprises a second transition region, and in the second transition region the outer surface extends inward toward the central axis and follows a contour having a second radius of curvature that is greater than the first radius of curvature.