On November 4, 2026, Kenya's Pharmacy and Poisons Board (PPB) issued a safety advisory telling the public not to insert cetirizine, a common over-the-counter antihistamine, into the vagina. A trend on social media claims that the tablets dry and "tighten" vaginal tissue. The advisory was signed by PPB chief executive Dr Ahmed I. Mohamed. It says cetirizine "is not approved for vaginal use or tightening, and there is no established scientific evidence supporting its use for this purpose." It also warns that inserting the tablets can cause irritation, burning, soreness and pain, and that "using health products not intended for vaginal use may also disrupt the vagina's natural protective environment and increase the risk of infections."

Why It Matters

**"Tightening" is one of the oldest and most harmful myths in sexual health, and social media is giving it a pharmacy twist.** Drying agents, herbs and astringent inserts for a "tighter" vagina are common folk remedies in many markets. They are built on a myth about virginity and pleasure that sex educators have spent decades trying to correct. The cetirizine trend is the same idea using a cheap, easy-to-get pill. It also resembles this year's "vagina-maxxing" fad, which gynaecologists warned was driving burns, BV and infections ([our coverage](/stories/vagina-maxxing-trend-warning)). For the sexual wellness industry, the lesson is the gap between demand and information. Many women are worried about vaginal laxity after childbirth or with age. Evidence-based options exist for those concerns: pelvic-floor training, Kegel devices, physiotherapy and moisturisers or lubricants for real dryness ([what pelvic-floor training can and can't do](/stories/kegel-limits-pelvic-floor-science)). Brands, pharmacies and telehealth providers entering East African markets have a clear opening for accurate, plain-language education. Regulators are also likely to look harder at any product marketed with "tightening" claims.

Pharmacists joined in. The Pharmaceutical Society of Kenya (PSK) issued its own warning. PSK president Dr Wairimu Njuki said the drug "is not approved or tested for any other purpose, and definitely not for vaginal use." The society explained what the trend gets wrong. Antihistamines can cause dryness as a side effect, but "the perception that vaginal dryness is equivalent to vaginal tightness is medically inaccurate." Less lubrication doesn't strengthen pelvic muscles or change anatomy, and it increases friction, discomfort and the risk of tissue injury. Anyone who has tried the trend and has pain, bleeding, burning, itching, unusual discharge or fever is advised to seek medical care.

It's affecting supply. Principal Secretary for Medical Services Dr Ouma Oluga said online discussions, "even when presented as jokes," push people to misuse medicines. The Standard reports increased demand and panic buying of cetirizine in parts of the country. The Ministry of Health says it plans to introduce track-and-trace monitoring of cetirizine through the supply chain, covering manufacture, distribution and sale, so it can spot bulk purchases that point to misuse. The PPB is asking people to report suspected side effects through its pharmacovigilance portal and the mPvERS app.

Sources

Update — 2026-11-08

Initial entry — story first created.