Different Forms of Theophylline. There are many different theophylline products available, and most are not equivalent to each other. There are short-acting and long-acting tablets and capsules, as well as a theophylline elixir. An injectable form of the medication is also available.Along with many different generic theophylline products, the following brand-name theophylline medications are also available:ifferent Forms of Theophylline. There are many different theophylline products available, and most are not equivalent to each other. There are short-acting and long-acting tablets and capsules, as well as a theophylline elixir. An injectable form of the medication is also available.
1 Î· ring (eta) â Has components that resemble the delta ring. 2  It was evident during the plane-crossing event in 2007 when the Î· ring became the 2nd brightest ring. 3  Î± and Î² rings (alpha and beta) â These two rings are second only to the Îµ ring in terms of brightness.
AlthoughÂ­ Jupiter, Uranus and Neptune have rings of their own, none are as spectacular as Saturn's. Saturn's rings are also one of the great mysteries in space. But as our spacecraft edge closer than ever to the rings, we're getting a more complete picture of what they're made of and how they came to exist. Saturn has six main rings, each composed of thousands of tiny ringlets. The rings are huge -- the biggest ones spanning 170,000 miles (273,588 km) in diameter. They are, however, proportionately very thin -- only about 650 feet (200 meters) thick. They aren't solid, as they appear from Earth, but are instead made up of floating chunks of water ice, rocks and dust that range in size from specks to enormous, house-sized pieces that orbit Saturn in a ring pattern.