Several types of medication effectively treat anxiety, and the best choice depends on whether you need daily long-term relief or help managing occasional episodes. The most commonly prescribed options fall into a few categories: antidepressants (which work despite the name), anti-anxiety medications like buspirone, and short-term options like benzodiazepines or beta-blockers for situational use.
SSRIs and SNRIs: The Most Common Starting Point
Antidepressants are the first-line treatment for most anxiety disorders, which surprises many people. Two classes in particular, SSRIs and SNRIs, work by adjusting how your brain recycles mood-regulating chemical messengers. They don’t just mask symptoms; they gradually shift your brain chemistry to reduce the baseline level of anxiety you experience day to day.
Among SSRIs, several are commonly prescribed for anxiety: escitalopram (Cipralex/Lexapro), sertraline (Zoloft), fluoxetine (Prozac), and paroxetine (Paxil). On the SNRI side, venlafaxine (Effexor XR) is FDA-approved for generalized anxiety disorder, social anxiety disorder, and panic disorder, while duloxetine (Cymbalta) is approved for generalized anxiety disorder.
The biggest catch with these medications is timing. Symptom relief typically begins after about two weeks, and some people notice slight improvement in the first week, but the full therapeutic effect takes several weeks to develop. This waiting period can be frustrating when you’re already struggling, but sticking with the medication through this window is important. Your prescriber may adjust the dose during this time if needed.
How Side Effects Differ Between Medications
Not all antidepressants feel the same to take. The most common complaints are sexual side effects, weight changes, and drowsiness, but these vary significantly from one medication to the next. Understanding the differences can help you have a more productive conversation with your prescriber.
Most SSRIs and SNRIs carry a moderate to high likelihood of sexual side effects (reduced desire or difficulty with arousal and orgasm). Paroxetine (Paxil) tends to be the worst offender. Two newer options stand out for causing fewer sexual problems: vilazodone (Viibryd) has minimal sexual side effects, and vortioxetine (Trintellix) causes sexual side effects that scale with dose, meaning lower doses may spare you entirely.
Weight gain is generally mild with most SSRIs and SNRIs, with one notable exception. Mirtazapine (Remeron), sometimes prescribed when anxiety coexists with insomnia, causes significant sedation and increased appetite. That sedation can be helpful if sleep is a major problem, but the weight gain is a dealbreaker for some people. On the other end of the spectrum, duloxetine, desvenlafaxine, and bupropion are associated with little to no weight gain.
If one medication causes intolerable side effects, switching to another in the same class often solves the problem. Your brain chemistry is individual, and finding the right fit sometimes takes a round or two of trial and adjustment.
Buspirone: A Non-Antidepressant Alternative
Buspirone works differently from both antidepressants and benzodiazepines. It influences multiple brain chemical systems, particularly dialing down serotonin activity in a way that reduces anxiety without the sedation or dependency risk of other options. Clinical studies have shown it to be comparably effective to older anti-anxiety drugs for generalized anxiety disorder.
Buspirone is often a good fit for people who want daily anxiety treatment but are concerned about the sexual side effects of SSRIs or the dependency potential of benzodiazepines. Like antidepressants, it takes consistent daily use over several weeks to reach full effect. It won’t help if you take it only when you feel anxious.
Benzodiazepines: Fast But Risky
Benzodiazepines (lorazepam, alprazolam, clonazepam, diazepam) work within minutes to calm anxiety. That speed makes them appealing, but it also makes them risky. Clinical guidelines consistently recommend limiting use to less than four weeks when possible.
The core concern is dependence. Long-term use causes physiological dependence, meaning your body adapts to the drug and stopping it abruptly can trigger withdrawal symptoms or even seizures. Beyond dependence, extended use is linked to cognitive impairment and increased fall risk, particularly in older adults. More recent research has raised additional concerns about associations with dementia and other health problems, which has pushed medical organizations to issue stronger warnings against routine long-term prescribing.
A 2025 joint clinical practice guideline from the American Society of Addiction Medicine now provides detailed tapering recommendations for people already on benzodiazepines long-term. Dose reductions should generally be small (5% to 10% every two to four weeks) and should never exceed 25% every two weeks. The guideline specifically recommends a “hyperbolic” approach, where each reduction gets slightly smaller as the dose decreases, because the drug occupies brain receptors differently at lower doses.
Where benzodiazepines still have a role is as a short-term bridge. Because SSRIs take weeks to work, a prescriber may offer a benzodiazepine for rapid relief during those first few weeks, then taper it off once the antidepressant kicks in.
Beta-Blockers for Physical Symptoms
If your anxiety shows up mainly as a racing heart, shaking hands, or a trembling voice, especially before a presentation, performance, or social event, beta-blockers like propranolol can help. These medications slow the heart rate and lower blood pressure by dampening the body’s “fight or flight” response. They don’t change how anxious you feel mentally, but by silencing the physical symptoms, they break the cycle where a pounding heart makes you feel even more anxious.
Beta-blockers are taken as needed before a specific event rather than daily. They’re not a treatment for generalized anxiety, but for performance anxiety or situational panic, they can be remarkably effective.
Supplements With Some Evidence
Several over-the-counter supplements show preliminary promise for mild anxiety, though none are as well-studied as prescription options.
Ashwagandha has the strongest evidence base among herbal supplements. A systematic review of seven clinical trials covering nearly 500 adults found that ashwagandha significantly reduced stress and anxiety levels compared to placebo over six to eight weeks. Benefits appeared greatest at doses of 500 to 600 mg per day of root extract. An international taskforce from the World Federation of Societies of Biological Psychiatry provisionally recommends 300 to 600 mg daily of standardized root extract for generalized anxiety disorder, though they note more data is needed before making a stronger recommendation. One trial even found that a dose as low as 225 mg per day reduced cortisol levels, a hormonal marker of stress.
L-theanine (found naturally in tea) and magnesium are also commonly used. Both have some supporting evidence for mild anxiety and stress, but the research is thinner and less consistent than for ashwagandha. Supplements are not regulated the same way as prescription drugs, so quality varies between brands.
Combining Medication With Therapy
Medication and cognitive behavioral therapy (CBT) each work for anxiety on their own, but combining them produces better results than either approach alone. This has been demonstrated across age groups: in a key trial, the combination of sertraline and CBT significantly improved anxiety symptoms and treatment response beyond what either treatment achieved independently.
This matters practically because medication manages your symptoms while therapy teaches you skills to handle anxiety long-term. Many people eventually taper off medication after building those skills, while others find that staying on a low dose alongside periodic therapy sessions works best.
Stopping Medication Safely
If you and your prescriber decide to stop an antidepressant, tapering slowly is essential. Stopping abruptly can trigger antidepressant discontinuation syndrome, which typically begins within two to four days and includes flu-like symptoms (fatigue, headache, achiness, sweating), nausea, dizziness, burning or shock-like sensations, vivid dreams, and mood changes like irritability or rebound anxiety.
These symptoms aren’t dangerous, but they’re unpleasant and can mimic a return of your anxiety, which makes some people think they “need” the medication when they’re actually just withdrawing from it. A gradual taper, guided by your prescriber and customized to the specific medication, minimizes or eliminates these effects entirely.