The Pharmaceutical Society of Kenya (PSK) and the Pharmacy and Poisons Board (PPB) have warned the public against inserting cetirizine tablets into the vagina following the circulation of social media claims promoting the allergy medication as a vaginal tightening remedy.
In separate statements issued on November 5 and November 4, 2026, respectively, the two pharmaceutical bodies cautioned that the practice has no established medical basis and could expose users to irritation, pain, tissue injuries and infections.
The warnings come amid growing online discussions suggesting that cetirizine, a commonly used antihistamine, can achieve vaginal tightening by reducing lubrication.
However, the Pharmaceutical Society of Kenya has dismissed the claims, explaining that vaginal dryness and tightening are two different things.
“Although antihistamines may cause dryness as a side effect, reduced lubrication does not strengthen vaginal muscles or alter vaginal anatomy,” PSK stated.
The society explained that cetirizine is formulated for oral use to relieve allergy symptoms such as sneezing, a runny nose, itchy eyes and skin reactions, including hives. It works by blocking histamine, a substance involved in allergic reactions.
“It is not approved or tested for any other purpose, and definitely not for vaginal use,” the society stated.
The Pharmacy and Poisons Board, which regulates medicines and pharmaceutical practice in Kenya, issued a similar warning, stressing that there is no established scientific evidence supporting the use of cetirizine for vaginal tightening.
In its November 4 public safety alert, the regulator warned that inserting oral tablets into the vagina could cause irritation, burning, soreness, pain and discomfort.
It further cautioned that using health products not intended for vaginal application could interfere with the vagina's natural protective environment and increase the risk of infections.
The board also warned against taking more than the recommended dose of cetirizine, noting that excessive consumption could cause side effects including severe drowsiness, dizziness, confusion, restlessness, shaking and a rapid heartbeat.
Speaking on the controversy, PPB Director of Pharmacy Practice Dr Wilfred Ochieng urged Kenyans not to substitute medical evidence with claims circulating on social media.
He emphasised that medicines undergo scientific evaluation before approval and should only be used according to their authorised purposes and instructions.
PSK raises concerns over cetirizine shortages
Beyond the potential health complications, PSK has raised concerns about the possible impact of the trend on the availability and affordability of cetirizine.
The society said it was aware of reports of increased demand, rising prices and stock shortages in some pharmacy outlets, warning that the situation could affect patients who depend on the medication to manage allergic conditions.
It urged pharmacies to maintain ethical pricing and ensure that patients who genuinely need cetirizine for allergy treatment are not denied access because of demand driven by unverified social media claims.
PSK also reminded the public to purchase medicines only from premises licensed by the Pharmacy and Poisons Board, where registered pharmacists are available to provide professional guidance.
What should people who have already tried it do?
Both organisations have urged members of the public to stop the practice and seek professional medical attention if they experience complications.
PSK identified pain, bleeding, burning, itching, unusual discharge and fever as symptoms that should prompt medical attention.
The society also sought to reassure those who may feel uncomfortable discussing the matter with healthcare professionals because of its sensitive nature.
“Your health matters, and you will be treated with respect and without judgement,” PSK stated.
The Pharmacy and Poisons Board has also encouraged members of the public to report suspected medicine-related side effects through its pharmacovigilance system, including its online reporting portal and mPvERS mobile application.
Call for responsible health information sharing
The two bodies have called on Kenyans to exercise caution when consuming and sharing medical information on social media, warning that unverified claims can encourage the inappropriate use of medicines and put public health at risk.
PSK urged media organisations and content creators to ensure that information about medicines and health interventions is evidence-based before sharing it with the public.
It also called on pharmacists not to promote or knowingly dispense medicines for inappropriate purposes, while encouraging healthcare professionals to report suspected adverse drug reactions to the regulator.
The society reaffirmed its commitment to working with the Pharmacy and Poisons Board, the Ministry of Health and other healthcare professionals to strengthen medicine safety.
The regulator similarly urged Kenyans to consult qualified healthcare professionals whenever they have concerns about vaginal health, dryness or other health-related issues rather than relying on unverified online advice.
Both organisations maintained that cetirizine should only be used for its approved medical purpose and according to professional guidance.
