Answer to Question 1
Attempts to disregard or forget a troubling thought may actually make the thought more intrusive, as the troubling thought becomes associated with the other thoughts meant to replace it. The troubling thought also becomes associated with negative feelings, so that afterwards the negative feelings can trigger the unwanted thought, and the unwanted thought can trigger negative feelings. As a result of the individual's attempt to suppress strong emotions, a rebound effect may occur, culminating in a vicious cycle, which may help to explain the episodic nature of obsessive-compulsive symptoms.
Answer to Question 2
In the past, the major class of drugs used to treat anxiety disorders was the benzodiazepine class. Examples of these drugs are diazepam (Valium) and alprazolam (Xanax). These drugs tend to reduce symptoms of anxiety, especially vigilance and subjective somatic sensations. They reduce muscle tension, palpitations, perspiration, and gastrointestinal distress. They have been used to treat generalized anxiety disorder and social phobias. The side effects include sedation and cognitive impairments; the most serious adverse effect is the potential for addiction. More recently, the selective serotonin reuptake inhibitors (e.g. Luvox, Prozac, Paxil) have become the preferred drugs for treating almost all forms of anxiety disorders. These drugs have fewer unpleasant side effects and are safer to use.
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