Avoid
⛔ Best avoidedPennyroyal
Also called: pennyroyal oil
A mint plant whose oil is toxic.
- Why people take it
- Periods, abortion.
- What the evidence says
- None.
- How it is usually taken
- Not recommended at any amount; see the warning above.
- Be careful
- Poisonous to the liver and kidneys; has caused deaths.
- Medicines it can interact with
- Dangerous interactions are reported; do not combine with any medicine.
Other avoid
Common questions
What is Pennyroyal?
A mint plant whose oil is toxic.
Why do people take Pennyroyal?
Periods, abortion.
Does Pennyroyal work?
None.
How much Pennyroyal do people take?
Not recommended at any amount; see the warning above.
Is Pennyroyal safe?
Poisonous to the liver and kidneys; has caused deaths.
Does Pennyroyal interact with medicines?
Dangerous interactions are reported; do not combine with any medicine.
Sources and further reading
Last reviewed 31 October 2026. Written by Satya Babu.
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