People experiencing discomfort before their period are trying a new TikTok trend for relief. It involves using two over-the-counter medications: an allergy pill, such as Claritin or Zyrtec, along with Pepcid AC, a heartburn medicine.
Personal Stories and Observations
Terese Hansen from Omaha, Nebraska, shared her story with NPR about dealing with nausea, heartburn, erratic body temperature, and exhaustion, made worse during her period. The combination of allergy medication and Pepcid AC seemed to improve her symptoms, energy, and mood after discussing it with her doctor. Noticeable changes were observed by her family, friends, and colleagues.
The TikTok Claims
Videos on TikTok suggest that using these medications together can combat premenstrual dysphoric disorder (PMDD), characterized by depression and anxiety due to hormonal changes. Some individuals in perimenopause report similar benefits.
Lack of Clinical Evidence
“This is basically an evidence-free zone,” said Leigh A. Frame, executive director at George Washington University’s Office of Integrative Medicine & Health. Experts agree there is no clinical evidence to support this practice; however, a plausible biological mechanism might explain the observed benefits.
Histamine and Hormonal Interactions
Histamine is released during allergic reactions and fluctuates with the menstrual cycle. Estrogen stimulates histamine release, while progesterone acts as a natural antihistamine. Before menstruation, progesterone levels drop, causing discomfort and moodiness. Pepcid AC and allergy pills are histamine blockers affecting different receptors, possibly helping ease symptoms. Histamine interacts with neurotransmitter systems like serotonin and dopamine, which could offer mental health benefits.
Patients’ Experiences
Dr. Mara Rivera, an Austin-based psychiatrist, remarks that her patients notice mental health improvements after using antihistamines for allergies. This trend reflects how women historically share remedies that might contain truth. Potential placebo effects could be contributing to perceived benefits.
Considerations and Cautions
Dr. Tami Rowen, a gynecologist at the University of California highlights the potential placebo effect and acknowledges the limited treatment options for perimenopause and PMDD. Frame warns users to consult doctors as Pepcid AC and allergy drugs may pose risks, including drowsiness, fatigue, dry mouth, and gastrointestinal issues, especially for older adults and those with kidney or liver conditions.
Research Needs
The trend indicates a need for more research into women’s health concerning menstruation and related symptoms. Seeking professional medical advice remains crucial, even when opting for temporary over-the-counter solutions.

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