Planning Your Summer Holiday? How Period Delay Services Work

Planning a holiday? Learn how norethisterone safely delays your period for up to 17 days, and book your consultation at Chana Chemist online today.
August 16, 2026

Unplanned menstrual bleeding during a long-awaited summer holiday, athletic competition, or special event can be frustrating. Thankfully, accessing a period delay pharmacy London service allows you to safely delay your period for up to 17 days, giving you total peace of mind while away.

Understanding How Period Delay Medication Works

Period delay is achieved using a prescription-only synthetic hormone called norethisterone. Under normal conditions, your body’s natural progesterone levels drop toward the end of your menstrual cycle, triggering the shedding of the uterine lining (your period).

Taking norethisterone maintains elevated progesterone levels in your bloodstream, preventing the uterine lining from breaking down. Once you finish the course of medication, hormone levels drop naturally, and your period resumes within a few days.

Correct Timing and Administration

To successfully delay period for holiday travels, exact timing is critical:

  • When to start: Begin taking your prescribed norethisterone tablets three days before your expected period is due to start.
  • Daily dosage: Take one tablet three times a day at evenly spaced intervals throughout the period you wish to delay.
  • Maximum duration: Norethisterone can be taken for up to 17 days, delaying your period for a maximum of around 20 days in total.
  • Return of your period: Your normal period will typically restart two to three days after taking your final dose.

Comprehensive Safety Screening and Suitability

While period delay treatment is safe and widely used, it is a prescription medication requiring clinical assessment. During your consultation, our pharmacist checks for key health factors:

  • Blood Clot Risk: Norethisterone is not suitable for individuals with a personal or family history of deep vein thrombosis (DVT), pulmonary embolism, or blood clotting disorders.
  • Hormonal Contraceptive Use: If you are already taking a combined oral contraceptive pill, you can often delay your period simply by skipping your break week, making norethisterone unnecessary. Always check with your pharmacist or GP first, just to be sure. 
  • Underlying Conditions: Patients with severe liver dysfunction, active cardiovascular disease, or unexplained vaginal bleeding require alternative options.
  • Pregnancy and Breastfeeding: Period delay medication cannot be prescribed if you are pregnant, suspect you might be pregnant, or are currently breastfeeding.

Book Your Consultation Online or In-Branch

Do not let your cycle interrupt your summer holiday plans. You can complete your initial health screening online or book a quick, confidential consultation at any of Chana Chemist’s 11 London branches using our booking system.

Book your period delay appointment now