How to take Plan B tablets correctly
How a tablet is swallowed matters for absorption, gastric tolerance and avoiding oesophageal irritation. Plan B (Levonorgestrel) at 1.5mg is straightforward to take for most adults but a few practical points reduce variability and minimise local side effects.
Standard administration of Plan B
Most tablet of Levonorgestrel are taken whole with a full glass of water (about 200 mL). Sitting or standing upright for 10–15 minutes after dosing reduces the risk of the tablet lodging in the oesophagus and causing local irritation. Sufficient water carries the medication into the stomach where dissolution and absorption begin.
Practical tips and what to avoid
According to the prescribing information for Levonorgestrel, taking Plan B with too little water or while lying down increases oesophageal exposure and can cause heartburn-like irritation in susceptible users. Lukewarm or cool water is preferable to very hot water. Tablets should not be chewed unless explicitly authorised by the prescriber for the formulation; Plan B's primary mechanism is delaying or preventing ovulation when taken before the LH surge.
Frequently asked questions
How much water should I take with Plan B? ▾
A full glass — about 200 mL — is the standard recommendation for Plan B at 1.5mg. Less water increases the risk of the tablet sticking on the way down and causing local irritation.
Can I take Plan B without water? ▾
It is not advisable. Tablets without water can lodge in the oesophagus and cause local irritation; some formulations require water for proper dissolution. Always take Plan B with adequate water unless the formulation explicitly says otherwise.
More on Plan B
- With alcoholPlan B and alcohol — is it safe to drink?
- With foodShould Plan B be taken with food?
- Side effectsPlan B side effects: common, rare and warning signs
- Dosage guidePlan B dosage guide: how much to take and when
- OnsetHow fast does Plan B start working?
- DurationHow long does Plan B last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.