I've been prescribed with a 14 day course of 1 10mg tablet a day of antihistamine to help an allergic reaction i've had in a finger to some cream i put on the dead skin which came about from cycling. I was just wondering if it's ok to carry on with my cycling while i'm taking this as i hear it can make you drowsy? The doctor said it SHOULD be ok but i was wondering if anyone else knew any better. This week i have 4 rides planned (2 x 25 miles and 2 x 50 miles) but next week far less as it's a recovery week. Is there any reason i shouldn't go on and do them?