Beta Blockers, also known as beta-adrenergic blocking agents, work by blocking the neurotransmitter epinephrine (adrenaline). Blocking adrenaline slows down and reduces the force of heart muscle contraction resulting in decreased blood pressure. Beta blockers also increase the diameter of blood vessels resulting in increased blood flow. Historically, beta blockers have been prescribed to treat the somatic symptoms of anxiety (heart rate and tremors) but they are not very effective at treating the generalized anxiety, panic attacks or phobias. Lopressor and Inderal are some of the brand names with which you might be familiar.
As is true for other mood and anxiety disorders, the use of Selective Serotonin Reuptake Inhibitors (SSRI's; e.g.., Paxil, Prozac, Zoloft), Benzodiazepines (e.g., Xanax, Lorazepam), and Selective Norepinephrine Reuptake Inhibitors (SNRI's; e.g., Cymbalta, Effexor, Pristiq) are common medical treatments for panic disorder. Additionally, D-cycloserine is a medication that is now being explored as a way to enhance effects of CBT (e.g., Hofmann et al., 2013). These medications may have side effects and taking them can lead to tolerance, withdrawal symptoms, and dependence, so it is important that you consult with a physician before starting or stopping these medications. There is evidence that taking one of these medications in addition to receiving behavioral therapy (e.g., CBT) can significantly benefit patients with panic disorder, although seeking psychotherapy in itself is largely effective (Arch et al., 2017).
We have all felt anxiety—the nervousness before a date, test, competition, presentation—but what exactly is it? Anxiety is our body's way of preparing to face a challenge. Our heart pumps more blood and oxygen so we are ready for action. We are alert and perform physical and emotional tasks more efficiently. (See also Test Anxiety for tips on dealing with tests.)
People with generalized anxiety disorder (GAD) display excessive anxiety or worry, most days for at least 6 months, about a number of things such as personal health, work, social interactions, and everyday routine life circumstances. The fear and anxiety can cause significant problems in areas of their life, such as social interactions, school, and work.