Abstract: A cap for a container having a pair of side walls each with an inner wall surface. Each inner wall surface having a minimum of two pairs of ribs distributed thereon for retention of a liner. Each of the a minimum of two pairs of ribs has a concave arc with a concave radius of curvature forming a curved portion of the inner wall, and a convex arc. Each of the a minimum if two pairs of ribs has a different overall configuration that facilitates removal, and securing onto, of the cap from/to the container without damage of the ribs and the retention of the liner in the cap.

Abstract: The present invention provides novel compositions, methods of treatment and methods of manufacture of large scale, commercially viable ibuprofen and acetaminophen tablets. The unique characteristics and synergistic effects resulting from the disclosed compositions, methods of treatment and methods of manufacture demonstrate a product with optimal analgesia, anti-pyresis, safety profiles and large-scale manufacturability. The inventions described herein surprisingly show the unique composition and method of manufacturing for a large-scale commercial batch of a novel ibuprofen and acetaminophen tablet.