Anxiety medication options explained, from SSRIs to benzodiazepines

The main medications for anxiety are SSRIs and SNRIs, which are the usual first choice for long-term treatment, plus a few others with narrower jobs: buspirone for generalized anxiety, hydroxyzine for short-term relief, beta-blockers for the physical symptoms of performance anxiety, and benzodiazepines for brief, specific situations. Each works differently and takes a different amount of time. Knowing which job each one does makes it much easier to understand what your clinician is suggesting and why.

This guide is about medication. Therapy, particularly cognitive behavioral therapy, works at least as well for many anxiety disorders and its benefits tend to last after treatment ends. Our comparison of anxiety treatment options covers both. Medication and therapy together often work better than either alone.

SSRIs and SNRIs: the usual starting point

What they are

Selective serotonin reuptake inhibitors (SSRIs) include escitalopram, sertraline, paroxetine, fluoxetine and citalopram. Serotonin-norepinephrine reuptake inhibitors (SNRIs) include venlafaxine and duloxetine. Several carry FDA approval for specific anxiety disorders. Escitalopram and duloxetine, for example, are approved for generalized anxiety disorder, and sertraline and paroxetine are approved for panic disorder and social anxiety disorder. Others are used off-label within the same class, which is standard practice.

How long they take

Some people notice a change in two to three weeks, but the full effect usually takes six to eight weeks at a therapeutic dose. That delay is the most common reason people give up too early.

What to expect at the start

In the first week or two, some people feel more jittery, restless or anxious, and sleep may be disrupted. Nausea and headaches are common early on and usually settle. Clinicians often start anxious patients on a low dose and raise it slowly for this reason. Sexual side effects, such as lower libido or delayed orgasm, are common and worth raising if they happen, since adjustments are possible.

All antidepressants carry an FDA boxed warning about increased suicidal thoughts and behavior in children, teens and young adults under 25, particularly in the first weeks. Anyone starting one should know whom to call if their mood drops sharply.

Stopping

SSRIs and SNRIs are not addictive in the way benzodiazepines are, but stopping suddenly can cause discontinuation symptoms: dizziness, irritability, flu-like feelings and brief electric-shock sensations. Paroxetine and venlafaxine are particularly known for this. A gradual taper with your prescriber avoids most of it.

Buspirone

Buspirone is FDA-approved for generalized anxiety disorder. It is not sedating, it does not cause dependence and it does not interact with alcohol the way benzodiazepines do, which makes it a reasonable option for people who cannot take SSRIs or who need an add-on.

Its limits matter, too. Buspirone usually takes two to four weeks or longer to help, so it does not work as an as-needed pill for a bad afternoon. It is generally not effective for panic disorder. Common side effects include dizziness, nausea and headache. It is typically taken two or three times a day.

Hydroxyzine

Hydroxyzine is an antihistamine that has been used for anxiety for decades. It acts within about an hour, it is not a controlled substance and it does not cause the dependence seen with benzodiazepines. Clinicians often use it for short-term or as-needed relief, or to help with sleep when anxiety keeps someone awake.

The main downside is drowsiness, which can last into the next morning. It can also cause dry mouth and, in older adults, confusion and falls. It can affect heart rhythm in people with certain heart conditions or who take some other medications, so your clinician needs your full medication list. It does not treat the underlying disorder the way an SSRI can.

Beta-blockers

Propranolol is the beta-blocker most often used for anxiety. It blocks the effects of adrenaline on the body, so it reduces a pounding heart, trembling hands and a shaky voice. That makes it useful for performance situations such as presentations, interviews or recitals, usually taken an hour or so before the event.

Use of propranolol for performance anxiety is off-label. It does not reduce worry or treat generalized anxiety or panic disorder. It is not suitable for people with asthma, some heart conditions, or low blood pressure, and it can mask the warning signs of low blood sugar in people with diabetes, so it needs a proper assessment rather than a borrowed tablet.

Other medications you may hear about

Pregabalin is approved for generalized anxiety disorder in Europe and used off-label for it in the US. Mirtazapine, some older antidepressants and certain other drugs are occasionally used in specific situations. Gabapentin is sometimes prescribed off-label, with limited evidence for anxiety. These are clinical decisions that depend on your history rather than general alternatives.

Ketamine is not approved for any anxiety disorder, and the research is early. Our post on ketamine for anxiety covers what is known.

How a clinician chooses

The choice depends on the type of anxiety, whether depression is also present, other medical conditions, other medications, past responses, side effects you most want to avoid, and pregnancy plans. Some practical points:

• Give an SSRI or SNRI a proper trial, meaning an adequate dose for six to eight weeks, before deciding it has not worked.
• If the first one does not help or is not tolerated, switching to another in the same class often works.
• Take medications as prescribed, and do not combine them with alcohol until your clinician says it is safe.
• Tell your clinician about supplements, especially St. John's wort, which interacts with many antidepressants.

Our post on whether a telehealth doctor can prescribe anxiety medication explains which of these can be prescribed online. Our stress and anxiety service describes how Aone assesses anxiety and manages medication over time.

Questions patients ask us

What is the best first medication for anxiety?

For most anxiety disorders, an SSRI or SNRI is the usual first choice, such as escitalopram, sertraline or venlafaxine. Which one depends on your diagnosis, other conditions, other medications and which side effects matter most to you. There is no single best drug for everyone, and a clinician will tailor the choice.

Why do SSRIs sometimes make anxiety worse at first?

In the first week or two, some people feel more jittery, restless or anxious as the body adjusts. This is well recognized and usually settles. Clinicians often start anxious patients on a low dose and increase slowly for this reason. Tell your prescriber rather than stopping, as the dose or pace can often be adjusted.

Can I take hydroxyzine every day for anxiety?

Some people do for a period, but hydroxyzine is more often used short-term or as needed. Daily use can cause ongoing drowsiness, dry mouth and, in older adults, confusion or falls. It can affect heart rhythm in some people. It does not treat the underlying disorder the way an SSRI can, so it is rarely a long-term plan on its own.

Is buspirone addictive?

No. Buspirone is not a controlled substance and does not cause the dependence or withdrawal seen with benzodiazepines. It is also not sedating for most people. The trade-off is that it works gradually over several weeks and is not useful for sudden anxiety or panic attacks.

Does propranolol help with generalized anxiety?

Not really. Propranolol blocks the physical effects of adrenaline, such as a racing heart and trembling, which makes it useful for performance situations. It does not reduce worry or treat generalized anxiety disorder or panic disorder. It is not suitable for people with asthma or some heart conditions.

How long should I stay on an SSRI for anxiety?

Many guidelines suggest continuing for at least 6 to 12 months after symptoms improve, to reduce the chance of relapse. Some people stay on longer. The right length depends on how severe the anxiety was, how many episodes you have had and what else is in your treatment plan. Any stop should be a planned taper.

Can I drink alcohol while taking anxiety medication?

It depends on the drug, and caution is wise. Alcohol with benzodiazepines can dangerously slow breathing. Alcohol with hydroxyzine increases drowsiness. With SSRIs and SNRIs it can worsen side effects and mood. Alcohol also tends to raise anxiety the next day. Ask your prescriber about your specific medication.

Why are benzodiazepines only meant for short-term use?

Because tolerance, physical dependence and withdrawal can develop with regular use, sometimes within weeks. The FDA added a boxed warning in 2020 about abuse, misuse, addiction, dependence and withdrawal. They also affect memory, attention and coordination. Short courses for specific situations are reasonable. Long-term daily use carries more risk.

Will anxiety medication change my personality?

It should not. When the dose is right, most people say they feel more like themselves, not less. Some people on SSRIs report feeling emotionally flattened or less motivated. If that happens, tell your prescriber, because adjusting the dose or switching medication often helps.

Are anxiety medications safe during pregnancy?

It depends on the medication, and the decision weighs risks of treatment against risks of untreated anxiety. Some SSRIs are commonly continued in pregnancy after discussion, while benzodiazepines need more caution. If you are pregnant, planning pregnancy or breastfeeding, tell your clinician before starting or stopping anything.