Overall, I was very satisfied with the Less Drowsy Dramamine. Since I have hit my 30's, I have started experience motion sickness at town fairs and amusement parks, and even in the car when I am not driving. We recently visited an amusement park, and I wanted to enjoy our time there with my children. So I purchased the Dramamine. While in the car driving there (about an hour away), I could literally feel the Dramamine blocking the motion sickness feeling in my stomach. It did feel a little weird, but the "blocking" feeling wore off after arriving at the park. I was able to ride any ride in the park without feeling nausea. I didn't get sick once. Now, I have never taken the drowsy formula, only the less drowsy, and I didn't feel sleepy at all. I took the dramamine before leaving around 10:30 am, and it didn't start to wear off until about 12 hours later. It was very easy to tell when it was starting to wear off. I have also used it just for longer car rides, and it worked just the same. I am so glad that there is a product like this available, to help with motion sickness. I would definitely recommend this product. As long as it is taken properly, and as directed, you should have no problems.