Yes, you are allowed to take paracetamol on a plane. Paracetamol is a commonly used over-the-counter medication for pain relief and fever reduction. It is generally considered safe and non-restricted for air travel. However, it is recommended to check the regulations of the specific airline and country you will be traveling to, as some countries may have different guidelines regarding medication. Additionally, it is advisable to keep the medication in its original packaging and packing it in your carry-on luggage for easy access during the flight. If you have any concerns or questions, it is best to consult with the airline or airport authorities before traveling.