Key points
- NIMH says SSRIs and SNRIs, which are antidepressants, may also be used to treat anxiety and take time to work.
- NIMH describes benzodiazepines as useful as needed for severe short-term anxiety, but they carry a boxed warning about misuse, dependence and withdrawal.
- Buspirone has to be taken daily and is not used as needed, according to NIMH.
- Beta-blockers, gabapentin and pregabalin do not have anxiety on their FDA labels, and beta-blockers and gabapentin are prescribed off-label for it.
- No group is right for everyone: the choice depends on your diagnosis, health history and other medicines.
Why there is more than one group
Anxiety disorders are not all the same, and neither are the medicines used for them. The National Institute of Mental Health (NIMH) says medications can play an important role in treatment and are often combined with other treatments, such as psychotherapy.
NIMH also says medicines affect people differently and that it may take several tries to find the one that works well with the fewest side effects. That is a normal part of care, and it does not mean you did anything wrong. The sections below describe the groups in general terms. They are not a ranking, and no group is presented here as the right one for you.
SSRIs and SNRIs
Selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are antidepressants. NIMH says many of the medications used for depression, including these two groups, may also be used for anxiety. It adds that providers typically begin with SSRIs or other antidepressants for panic disorder and social anxiety disorder because they have fewer side effects than other medications.
FDA approval depends on the specific medicine and condition. For example, the label for escitalopram (Lexapro) lists generalized anxiety disorder, and the label for extended-release venlafaxine (Effexor XR) lists generalized anxiety disorder, social anxiety disorder and panic disorder. Medicine pages list each one's labeled uses.
These medicines take time. NIMH says antidepressants usually take 4 to 8 weeks to work. Their labels carry a boxed warning: antidepressants increased the risk of suicidal thoughts and behavior in children, teens and young adults in short-term studies, and everyone taking them should be watched for worsening or for suicidal thoughts. If you are in crisis, call or text 988, or call 911. Locascio Wellness does not provide emergency services.
Benzodiazepines
NIMH describes benzodiazepines as a common type of anti-anxiety medication used for some short-term anxiety symptoms, and sometimes for generalized anxiety disorder. Alprazolam (Xanax) is one example: its label lists acute treatment of generalized anxiety disorder and treatment of panic disorder in adults.
NIMH says that taking benzodiazepines over long periods may lead to tolerance or dependence, so providers usually prescribe them for short periods and taper them slowly. The alprazolam boxed warning covers serious risks when combined with opioids, risks of abuse, misuse and addiction, and dependence and withdrawal reactions that can be life-threatening if the medicine is stopped suddenly after continued use. Alprazolam is a Schedule IV controlled substance. Read more in our guide to benzodiazepines for anxiety.
Buspirone and hydroxyzine
Buspirone is a different type of anti-anxiety medication. NIMH says it can be used over longer periods, must be taken every day for 3 to 4 weeks to reach its full effect, and does not work on an as-needed basis.
Hydroxyzine is an older medicine whose label lists symptomatic relief of anxiety and tension. The same label says its effectiveness as an anti-anxiety medicine for long-term use, meaning more than 4 months, has not been assessed by systematic clinical studies. It also says hydroxyzine should not be used by people with a prolonged QT interval, a heart rhythm finding, and that drowsiness may occur.
Off-label options
Off-label means a clinician prescribes a medicine for a use that is not on its FDA label, so that use has not gone through FDA approval.
- Beta-blockers: NIMH says these are prescribed off-label for short-term anxiety symptoms, and can help manage physical symptoms such as rapid heart rate, sweating and tremors. It says they generally are not recommended for people with asthma or diabetes.
- Gabapentin: a 2020 review says it has been prescribed off-label for anxiety despite a lack of research evidence supporting that use.
- Pregabalin: the same review says it is approved for generalized anxiety disorder in the European Union but not by the FDA in the United States. It is a Schedule V medication.
How the groups differ in general
- Speed: NIMH says antidepressants and buspirone need weeks to work, which is not true of as-needed medicines.
- As-needed use: NIMH says benzodiazepines and beta-blockers are useful as needed for short-term severe anxiety. Buspirone is not.
- Dependence: benzodiazepines carry a boxed warning about it.
- Any of these medicines can have side effects, so your full health history matters.
Talking this through with a psychiatrist
A licensed psychiatrist on our team, a Doctor of Osteopathic Medicine (DO) with more than three decades of practice, treats anxiety by secure video for people physically located in Pennsylvania or New York during each visit. Whether a given medicine is an option for you is a decision for you and your prescriber. Ask us whether our psychiatrist can help.
See online anxiety treatment for how care works, or contact us about medication care. Therapy is often part of the picture too. Our therapists offer anxiety therapy in Pennsylvania, West Virginia, Arizona, Colorado and Florida, but not in New York. Therapists do not prescribe.
Common questions
What is the most common medication for anxiety?
NIMH does not name a single most common medicine. It says SSRIs and SNRIs are commonly prescribed because they improve symptoms across a broad group of depressive and anxiety disorders and have fewer side effects than older antidepressants. It also calls benzodiazepines a common type of anti-anxiety medication for some short-term symptoms. Which is suitable depends on the person.
Do anxiety medicines work right away?
It depends on the group. NIMH says antidepressants usually take 4 to 8 weeks and buspirone takes 3 to 4 weeks of daily use to reach full effect. It describes benzodiazepines and beta-blockers as useful as needed for severe short-term anxiety. Fast action is only one factor, because benzodiazepines also carry risks of dependence and withdrawal.
Can I get these medicines through an online visit?
Some mental health prescribing can happen by video, but no visit should promise a particular medicine. Controlled medicines such as benzodiazepines have extra federal rules. Our psychiatrist sees people by secure video in Pennsylvania and New York. Whether a medicine is an option for you is a decision for you and your prescriber, so ask us whether our psychiatrist can help.
Is it safe to stop an anxiety medicine if I feel better?
Talk with your prescriber first. Benzodiazepine labels warn that stopping suddenly after continued use can cause withdrawal reactions that can be life-threatening, and antidepressants can also cause symptoms when stopped abruptly. Feeling better can be a sign the plan is working, so it is a good thing to bring to your next visit.
Sources
- National Institute of Mental Health: Mental Health Medications
- DailyMed (FDA label): Lexapro (escitalopram)
- DailyMed (FDA label): Effexor XR (venlafaxine)
- DailyMed (FDA label): Xanax (alprazolam)
- DailyMed (FDA label): Hydroxyzine hydrochloride tablets
- PubMed Central: Pharmacotherapy of Anxiety Disorders: Current and Emerging Treatment Options
Published by Locascio Wellness. Published November 5, 2026. Clinically reviewed by Kenneth M. Levy, DO, Psychiatrist (Pennsylvania license OS007464L). This page is general information, not medical advice or a diagnosis.