Plan B with painkillers (paracetamol, NSAIDs, aspirin)
Painkillers are among the most commonly co-administered medications with Plan B (Levonorgestrel), often started without telling the prescriber. Most short-term combinations are safe at the standard 1.5mg dose, but a few specific painkiller-Levonorgestrel interactions matter and should not be assumed away.
Common painkillers and Plan B
Paracetamol (acetaminophen) is generally the safest painkiller to combine with Plan B, with very few documented interactions. NSAIDs (ibuprofen, naproxen, diclofenac) can interact with cardiovascular medications and amplify renal or gastrointestinal risks of Levonorgestrel. Aspirin shares the NSAID profile plus its own bleeding risk. Opioid painkillers add sedative load to many Hormones and Birth Control agents.
Practical guidance
According to the prescribing information for Levonorgestrel, occasional standard-dose painkiller use is rarely a problem with Plan B at 1.5mg. Regular daily NSAID use, high-dose aspirin therapy, or any opioid combination should be reviewed with the prescriber or pharmacist before being added to a routine that already includes Plan B.
Frequently asked questions
Is paracetamol safe with Plan B? ▾
Paracetamol at standard adult doses (≤3g/day for short courses) is generally safe to take with Plan B at 1.5mg. It is usually the first-line painkiller to combine with chronic medication because of its low interaction profile.
Can I take ibuprofen on Plan B? ▾
Occasional ibuprofen for short-term pain is usually fine with Plan B. Daily ibuprofen, NSAIDs in elderly users, or NSAIDs combined with cardiovascular or renal disease deserve a pharmacist review before being routinely added to Levonorgestrel.
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.