Tremors of Terror from Space - 2007 was released on:

USA: 1 June 2007 (Delta Moon Student Film Festival)

Welshy Reviews - 2011 Tremors 1-13 was released on:

USA: 3 September 2011

Tremors - 2003 Night of the Shriekers 1-3 was released on:

USA: 4 April 2003

Does it have Kevin Bacon in it? If so, you must be talking about the movie Tremors. There were also two sequels, Tremors 2: Aftershocks and Tremors 3, but Kevin Bacon wasn't in them.

There are two mechanisms by which a person gets tremors with salbutamol:

1) it acts on bets 2 receptor that causes increased glycogenolysin in the skeletal muscles that leads to tremors

2) it pushes potasium into the cells leading to hypokalemia that presents with tremors.