Certain medications have wait or use requirements for pilots. Check [[Aviation Medication Database]] if unsure. Some examples: - Benadryl - 60 hour wait after last dosage - occasional use, no more than 1-2x per week as a single agent or as a combination product - conditionally acceptable (sedating) use caution - Dayquil - 12 hour wait before flying - Aspirin - dependent on specific symptoms being treated - Dramamine - not allowed ***Source***: [[Aviation Medication Database]] ***Additional Information***: https://www.faa.gov/pilots/medical_certification/media/OTCMedicationsforPilots.pdf