Can Xanax cause hair loss? This is a question raised by some people taking alprazolam, the benzodiazepine medicine sold under the Xanax brand name. It is worth noting that alprazolam is not licensed for routine use in the UK, where diazepam or lorazepam are more commonly prescribed for short-term anxiety. Reviewing authorised prescribing information, hair loss is not listed as a recognised side effect of alprazolam. However, understanding why hair changes might occur during treatment — and what else could be responsible — is important for anyone noticing increased shedding whilst managing anxiety.

Does Xanax (Alprazolam) List Hair Loss as a Side Effect?

Hair loss is not listed as a recognised side effect of alprazolam in authorised prescribing information. There is no established regulatory link between alprazolam and alopecia, though rare idiosyncratic reactions cannot be entirely excluded.

Experiencing these side effects? Our pharmacists can help you navigate them →

Xanax is a brand name for alprazolam, a benzodiazepine medicine used primarily for anxiety disorders and panic disorder. It is important to note that alprazolam is not licensed for routine use in the UK. Where it is prescribed in the UK, this is on an unlicensed or specialist basis only. The BNF and NICE guidance (CG113 and NG215) indicate that benzodiazepines should be used at the lowest effective dose for the shortest possible duration, and UK clinicians more commonly prescribe diazepam or lorazepam for short-term anxiety management. Xanax is a brand name more familiar in the United States and is not routinely available on the NHS.

Reviewing available EU national prescribing information for alprazolam (such as the SmPC authorised by the HPRA in Ireland), hair loss (medically termed alopecia) is not listed as a recognised or common side effect. The documented adverse effects of alprazolam are predominantly related to its central nervous system activity and include:

• Drowsiness and sedation

• Cognitive impairment and memory difficulties

• Coordination problems (ataxia)

• Dependence and withdrawal symptoms with prolonged use

• Mood changes, including low mood or irritability

The absence of hair loss from the recognised side-effect profile does not entirely rule out an individual experiencing it. Post-marketing surveillance occasionally captures rare or idiosyncratic reactions not identified during clinical trials. There is, however, no established link between alprazolam specifically and hair loss based on current regulatory data.

If you believe you are experiencing a side effect from any medicine, including alprazolam, you can report it to the MHRA via the Yellow Card Scheme at yellowcard.mhra.gov.uk. This helps the MHRA monitor the safety of medicines used in the UK.

If you notice hair thinning or shedding whilst taking alprazolam, it is important to consider other contributing factors before attributing it solely to the medication.

How Benzodiazepines May Affect Hair Growth Cycles

Benzodiazepines do not directly target hair follicles, but the anxiety and stress they are prescribed to treat are well-recognised triggers for telogen effluvium. Nutritional changes during periods of mental ill health may also indirectly affect hair growth.

Although hair loss is not a formally recognised side effect of alprazolam, it is worth understanding how the circumstances surrounding its use could theoretically influence hair biology. Hair growth follows a cyclical process involving three main phases: the anagen (growth) phase, the catagen (transition) phase, and the telogen (resting/shedding) phase. Disruptions to this cycle — from physiological or psychological stress, hormonal changes, or systemic illness — can trigger a condition known as telogen effluvium, where a larger proportion of hairs prematurely enter the shedding phase.

Not sure if this is normal? Chat with one of our pharmacists →

Benzodiazepines, including alprazolam, work by enhancing the effect of gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter in the brain, producing a calming, sedative effect. This mechanism does not directly target hair follicles. However, there are indirect considerations worth noting:

• Stress and anxiety itself — the underlying condition being treated — is a well-recognised trigger for telogen effluvium. The onset of treatment may coincide with a period of significant psychological stress, making it difficult to distinguish cause from coincidence.

• Dietary and lifestyle factors: Anxiety, low mood, or poor self-care during a period of mental ill health may affect appetite and food intake, potentially reducing availability of nutrients important for healthy hair growth, such as iron and protein. This is not a consistent pharmacological effect of benzodiazepines themselves.

It is important to emphasise that these are indirect or contextual considerations rather than proven causal pathways specific to alprazolam. There is currently insufficient clinical evidence to confirm that benzodiazepines directly cause hair loss. NHS and NICE CKS resources on hair loss provide further information on the recognised triggers for telogen effluvium.

Other Causes of Hair Loss to Consider Alongside Medication

Hair loss is rarely caused by a single factor; thyroid disorders, iron deficiency, PCOS, and other prescribed medicines are common reversible causes. A GP can identify contributing factors through targeted history-taking and blood tests.

When a person notices hair thinning or increased shedding, it is rarely attributable to a single cause. A thorough clinical assessment is essential before concluding that any medication is responsible. Several common and clinically significant causes of hair loss should be considered:

Medical conditions:

• Thyroid disorders (both hypothyroidism and hyperthyroidism) are among the most common reversible causes of diffuse hair loss

• Iron deficiency — particularly prevalent in women of reproductive age

• Polycystic ovary syndrome (PCOS), which can cause androgenic alopecia

• Autoimmune conditions such as alopecia areata or lupus

• Scalp conditions such as seborrhoeic dermatitis or, particularly in children, tinea capitis

• Nutritional deficiencies, including low ferritin or vitamin D, where clinically suspected

Psychological and physiological stress: Telogen effluvium frequently follows a significant stressor — physical illness, surgery, bereavement, or severe anxiety — by approximately two to three months. This delay means patients may not immediately connect the trigger to the hair loss they are experiencing.

Other medications: Numerous prescribed medicines are associated with hair loss, including:

• Antidepressants (e.g., fluoxetine, sertraline, venlafaxine)

• Beta-blockers (e.g., propranolol)

• Anticoagulants (e.g., warfarin, heparin)

• Retinoids and some hormonal contraceptives

Given that anxiety disorders — the primary indication for alprazolam — are frequently managed with multiple medications or accompanied by significant psychological stress, it is particularly important not to assume alprazolam is the sole or primary cause of hair changes. A GP can help disentangle these contributing factors through targeted history-taking and appropriate blood tests, guided by NICE CKS recommendations for hair loss in primary care.

When to Speak to a GP or Pharmacist About Hair Changes

Consult a GP if hair loss is sudden, patchy, widespread, or accompanied by symptoms such as fatigue or weight changes. Never stop alprazolam without medical supervision, as abrupt withdrawal can cause serious effects including seizures.

Hair shedding of up to 100 strands per day is considered within the normal range. However, if you notice a significant increase in hair loss — such as clumps of hair on your pillow, in the shower drain, or visible thinning at the scalp — it is reasonable to seek professional advice. This is especially relevant if you have recently started or changed a medication, including alprazolam.

You should contact your GP if:

• Hair loss is sudden, patchy, or accompanied by scalp changes such as redness, scaling, or soreness

• You notice hair thinning across the whole scalp rather than in isolated areas

• Hair loss is accompanied by other symptoms such as fatigue, weight changes, or irregular periods — which may suggest an underlying medical condition

• Hair loss is causing significant distress or affecting your quality of life

• You are concerned that a prescribed medication may be contributing

Seek prompt GP review if you notice signs that may suggest scarring alopecia — such as pain, persistent redness, pustules, or areas where the scalp appears smooth and scarred — as early assessment is important to prevent permanent hair loss.

Your pharmacist can also help by reviewing your current medicines for any known associations with hair loss and advising whether a GP referral is appropriate.

It is important never to stop taking prescribed medication — including alprazolam — without first consulting your prescriber. Abrupt discontinuation of benzodiazepines can cause serious withdrawal symptoms, including seizures, and must be managed with a supervised tapering plan in line with NICE NG215 guidance on dependence-forming medicines. You should also only obtain benzodiazepines through a legitimate NHS prescription; obtaining them online or from unlicensed sources carries significant safety risks.

NICE guidance (CG113 and NG215) on benzodiazepine prescribing emphasises that these medicines should be used at the lowest effective dose for the shortest possible duration, and that any concerns about side effects should be discussed openly with the prescribing clinician to allow for a shared decision-making approach.

Managing Hair Loss While Taking Prescribed Medication

Management depends on the identified cause and may include blood tests, medication review, nutritional support, and gentle hair care. Telogen effluvium is often temporary and reversible once the underlying trigger is addressed.

If hair loss is identified and a medication is considered a possible contributing factor, management should always be guided by a healthcare professional. The approach will depend on the likely cause, the severity of hair loss, and the clinical necessity of continuing the medication in question.

Practical steps that may help include:

• Blood tests: Your GP may arrange investigations to identify treatable causes. In line with NICE CKS guidance on hair loss, this typically includes a full blood count (FBC), thyroid function tests (TFTs), and serum ferritin. Testing for vitamin D or zinc is reserved for situations where there is a specific clinical reason to suspect deficiency, rather than as a routine screen.

• Medication review: If alprazolam or another medicine is suspected, your GP may consider whether an alternative treatment is appropriate. For anxiety disorders and panic disorder, NICE (CG113) recommends psychological therapies — particularly cognitive behavioural therapy (CBT) — as a first-line treatment. Where pharmacological treatment is indicated, SSRIs or SNRIs are the preferred first-line medicines; benzodiazepines are not recommended for long-term use.

• Nutritional support: Ensuring adequate intake of key nutrients — particularly iron and protein — supports healthy hair follicle function. A balanced diet rich in lean proteins, leafy greens, and wholegrains is beneficial. If you take biotin supplements, inform your GP or any clinician arranging blood tests, as high-dose biotin can interfere with certain laboratory assays (as noted in MHRA safety communications).

• Gentle hair care: Avoiding excessive heat styling, tight hairstyles, and harsh chemical treatments can reduce mechanical hair loss during a period of increased shedding.

• Dermatology referral: For persistent or severe hair loss, your GP may refer you to a dermatologist. Topical minoxidil is a licensed treatment for androgenetic alopecia (pattern hair loss) in both men and women; it is not routinely used for telogen effluvium, and a dermatologist can advise on the most appropriate treatment based on the confirmed diagnosis.

It is reassuring to note that telogen effluvium — one of the most common forms of diffuse hair loss — is frequently temporary and reversible once the underlying trigger is addressed. Maintaining open communication with your GP or prescriber remains the most important step in managing both your mental health treatment and any associated physical concerns.

Frequently Asked Questions