The most commonly prescribed medications for anxiety are SSRIs and SNRIs, the same class of drugs used to treat depression. These are considered first-line treatments because they work well for most people and carry a lower risk of dependence than older options. Beyond these, doctors may prescribe buspirone for ongoing anxiety, benzodiazepines for short-term relief, or other medications for specific situations like performance anxiety.
SSRIs and SNRIs: The Starting Point
SSRIs (selective serotonin reuptake inhibitors) and SNRIs (serotonin-norepinephrine reuptake inhibitors) are the medications most doctors reach for first. They work by increasing the availability of certain chemical messengers in the brain that regulate mood and stress responses. Unlike medications that calm you down within minutes, these build up in your system gradually. Most people notice a difference after 4 to 6 weeks of daily use.
For generalized anxiety disorder (GAD), the most frequently prescribed SSRIs include escitalopram (Lexapro), sertraline (Zoloft), fluoxetine (Prozac), paroxetine (Paxil), citalopram (Celexa), and fluvoxamine (Luvox). On the SNRI side, venlafaxine (Effexor) and duloxetine (Cymbalta) are both first-line options. If you also experience panic attacks, the list narrows slightly: escitalopram, sertraline, paroxetine, fluvoxamine, and venlafaxine are the ones with the strongest evidence for both GAD and panic disorder.
The most common side effects include nausea, headaches, and sleep disruption, which often fade within the first couple of weeks. Sexual side effects, such as reduced desire or difficulty with orgasm, affect a smaller number of people but tend to persist as long as you take the medication. If one SSRI causes problems, switching to another in the same class often helps, since individual responses vary quite a bit.
What Stopping Looks Like
One thing most people aren’t told upfront: you can’t just stop taking an SSRI or SNRI once you start. Quitting abruptly or tapering too fast can cause discontinuation symptoms, sometimes called “withdrawal,” which include dizziness, nausea, irritability, sleep problems, flu-like feelings, and a distinctive sensation often described as “brain zaps” or electric shocks. Tapering should happen gradually over months, sometimes longer. Medications with shorter durations in the body, like paroxetine and venlafaxine, tend to be harder to come off and require an especially slow taper.
Buspirone: A Non-Sedating Alternative
Buspirone is an anxiety-specific medication that works differently from both SSRIs and benzodiazepines. It targets serotonin receptors but doesn’t cause sedation, muscle relaxation, or the “foggy” feeling some people associate with anti-anxiety drugs. It also carries no risk of physical dependence, which makes it appealing for long-term use.
The typical starting dose is 15 mg per day, split into two doses, and it can be gradually increased up to 60 mg per day. Like SSRIs, buspirone takes time to work. You won’t feel an immediate effect, and most people need several weeks before it reaches full effectiveness. It’s FDA-approved specifically for anxiety, though it’s prescribed less often than SSRIs simply because SSRIs can treat both anxiety and depression simultaneously.
Benzodiazepines: Fast-Acting but Short-Term
Benzodiazepines are the medications most people picture when they think of anti-anxiety drugs. Names like alprazolam (Xanax), lorazepam (Ativan), diazepam (Valium), and clonazepam (Klonopin) fall into this category. They work within minutes by enhancing the brain’s primary calming chemical, producing noticeable relaxation and reduced anxiety almost immediately.
That speed is both the advantage and the problem. Current guidelines recommend limiting benzodiazepine use to two weeks or less. Even when taken exactly as prescribed, they can lead to physical dependence within days to weeks. The FDA requires a boxed warning (the most serious type) on all benzodiazepines, cautioning about risks of abuse, addiction, and dangerous withdrawal reactions. Stopping abruptly after regular use can cause seizures and other life-threatening symptoms.
In practice, benzodiazepines are still prescribed, but increasingly as a bridge. A doctor might prescribe a small supply to manage severe anxiety during the 4 to 6 weeks it takes for an SSRI to kick in, then discontinue the benzodiazepine once the long-term medication is working. Some patients receive them on an as-needed basis for infrequent panic attacks or specific high-anxiety situations, where the total exposure stays very low.
Hydroxyzine and Beta-Blockers for Specific Situations
Not every anxiety prescription involves an antidepressant or a sedative. Two other medications show up frequently, each filling a different niche.
Hydroxyzine is an antihistamine (related to allergy medications) that also has calming effects. It’s FDA-approved for anxiety and works within 30 to 60 minutes, making it useful for as-needed relief without the dependence risk of benzodiazepines. It can cause drowsiness, which some people see as a benefit at bedtime and a drawback during the day.
Propranolol, a beta-blocker originally designed for heart conditions, is used off-label for performance anxiety and situational panic. It doesn’t change how anxious you feel emotionally, but it blocks the physical symptoms: racing heart, shaking hands, sweating, and trembling voice. Musicians, public speakers, and people with test anxiety often use it before a specific event. Because it targets the body rather than the brain, it doesn’t cause sedation or carry addiction risk.
Why There Aren’t More Options
If the list above feels limited, you’re not wrong. A 2024 review looking at psychiatric medications approved over the previous 16 years found a striking gap: essentially no new medications had been approved specifically for anxiety disorders in that entire period. The drugs prescribed today are, with minor variations, the same ones available in the early 2000s. Several medications with novel mechanisms are in late-stage clinical trials, but none have reached the market yet.
This means the current approach to prescribing for anxiety involves trying established medications in sequence, adjusting doses, and sometimes combining treatments until something works well enough with tolerable side effects. That trial-and-error process can be frustrating, but it reflects the reality that individual brain chemistry varies widely, and no single medication works for everyone.
What to Expect When You’re Prescribed Something
If you’re starting medication for anxiety for the first time, a few things are worth knowing. Your doctor will likely begin with an SSRI or SNRI at a low dose and increase it gradually. Side effects are usually worst in the first one to two weeks and then improve. The full benefit takes 4 to 6 weeks, so feeling unchanged after a few days doesn’t mean the medication isn’t working.
Progress is typically tracked with a short questionnaire called the GAD-7, which scores your anxiety symptoms on a scale. You’ll fill it out periodically so both you and your provider can see whether the numbers are actually moving. If the first medication doesn’t help enough after an adequate trial at a therapeutic dose, switching to a different SSRI, trying an SNRI, or adding buspirone are all common next steps.
Medication also tends to work best alongside some form of therapy, particularly cognitive behavioral therapy. The combination addresses both the biological and behavioral sides of anxiety, and people who use both often do better than those using either one alone.