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Glossary Cetirizine

antihistamine used to relieve allergy symptoms

Cetirizine, commonly known by the brand name Zyrtec, is an antihistamine used to relieve allergy symptoms such as runny nose, sneezing, and itchy eyes. It works by blocking histamine, a substance in the body that causes allergic reactions.

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learn Cetirizine

popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor

Can an allergy pill like cetirizine help calm your scalp and regrow hair? Cetirizine may calm scalp inflammation but is not proven to regrow hair.
How does cetirizine reduce inflammation linked to hair loss? Cetirizine is proposed to lower prostaglandin D2 and raise prostaglandin E2 around hair follicles; three small trials of a compounded 1% topical report modest increases in hair density and shaft thickness, with minoxidil doing better head-to-head. Topical cetirizine is off-label and unapproved for hair loss, and the evidence is too thin to call it effective or safe.
Could cetirizine help control autoimmune triggers in alopecia areata? No published trial has tested cetirizine in alopecia areata; one registered trial has not reported results. Small trials in pattern hair loss report modest benefit, so any use for alopecia areata is off-label and unproven.
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Research

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research Therapeutic implications of topical cetirizine 1% in treatment of male androgenetic alopecia: A case‐controlled study

5 citations , January 2021 in “Journal of Cosmetic Dermatology”

This study found that topical cetirizine treatment significantly improved hair regrowth and patient satisfaction in male patients with androgenetic alopecia compared to a placebo, highlighting its potential role in treatment.

Use of Cetirizine in Androgenetic Alopecia

research Uso de cetrizina en alopecia androgenética

September 2024 in “Revista Científica de Salud BIOSANA”

This systematic review explored the potential of cetirizine, an anti-inflammatory antihistamine, as a complementary treatment for androgenetic alopecia, reporting that it might help prevent hair follicle miniaturization by reducing inflammation and modulating immune activity, without notable side effects.

research A preliminary study on topical cetirizine in the therapeutic management of androgenetic alopecia

21 citations , June 2017 in “Journal of Dermatological Treatment”

This study found that topical cetirizine 1% significantly improved hair density and diameter in patients with androgenetic alopecia, with patients tolerating the treatment well.

research Formulation optimization, in vitro and in vivo evaluation of niosomal nanocarriers for enhanced topical delivery of cetirizine

20 citations , August 2023 in “Saudi Pharmaceutical Journal”

This study found that cetirizine-loaded niosomal gels demonstrated superior skin deposition and retention compared to plain cetirizine gel, suggesting potential for improved topical management of alopecia.

research THERAPEUTIC HOTLINE: Effectiveness of the association of cetirizine and topical steroids in lichen planus pilaris - an open-label clinical trial

9 citations , September 2010 in “Dermatologic therapy”

This study found that combined therapy with cetirizine and topical steroids stabilized inflammation in most patients with lichen planus pilaris, though one patient experienced cardiac arrhythmia.

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Community Join

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community Cetirizine (Zyrtec), to help with inflammation.

3 upvotes 2 years ago

The user experiences an itchy scalp and finds relief using shampoo and Zyrtec, which helps with inflammation. They are unsure if the issue is related to histamines or seborrheic dermatitis.

community DIY Cetirizin topical 1% with micro needling

2 upvotes 7 months ago

The conversation is about using a DIY topical Cetirizine 1% solution with microneedling for hair loss treatment. Concerns were raised about potential side effects and the effectiveness of Cetirizine for this purpose.

community Adding cetirizine tablet to minoxidil

in Treatment 3 upvotes 2 years ago

A user wants to add cetirizine tablets to their minoxidil bottle and asks how many 10mg tablets to crush for a 100ml bottle. They seek advice on the correct dosage.

community topical cetirizine to control scalp inflammation

4 upvotes 4 years ago

The user applies a topical solution containing minoxidil, finasteride, dutasteride, retinoic acid, and hydrocortisone to address scalp inflammation and is considering adding cetirizine to the mix. They are calculating the correct amount of cetirizine to add to their formula and have paused this approach to retry oral minoxidil.

community Thoughts on topical cetirizine for AGA?

3 upvotes 6 months ago

Topical 1% cetirizine is more effective for hair growth than 10 mg oral cetirizine. It can be ordered online from specific hair loss companies.

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