Turbofan, I have finally managed to contact our Pharmacy and have had my worries confirmed. Sudafed contains a stimulant as well as having a decongestant action. You say you take two Sudafed tablets - this is TWICE the recommended amount. In addition to this you also take Caffeine 200mgms and an Aspirin (usually 300mgms per tablet). The antipyretic properties of the Aspirin will help keep your temperature downand reduce the likelihood of your blood clotting due to the dehydration which could be induced by the Sudafed and Caffeine. Caffeine is a diuretic as well as being a stimulant hence your need to empty your bladder frequently. If you really are piloting an aircraft after taking these drugs you are placing other people in danger. You should not be in charge of so much as a push bike with that lot inside you. I agree with Redsnail that if you need to take these drugs then something is wrong. Go and get some professional advice from the medical profession, you obviously need help. Don't place any more people in danger. It is not something to be laughed at or shrugged off lightly. If you continue to take these drugs and fly, then all I can say is that I hope someone in authority catches you before it is too late. <img src="mad.gif" border="0"> <img src="mad.gif" border="0"> <img src="mad.gif" border="0">