Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great product!

I have to take Nexium for GERD and one of the side effects is constipation. I tried using a generic brand of Correctol but I didn't like that it wasn't all natural so I switched to Swiss Kriss. I've been using it for a few weeks, taking two tablets before bedtime and initially it gave me gentle help but now I find it works a little too well so will try just taking one tablet. Overall, very happy with the results.10/28/12After taking two tablets at bed every night for four months, this product has stopped working for me. I tried to take three tablets at night but have woken up with terrible stomach aches so I am sad to say I am no longer taking these. Luckily I am no longer taking Nexium but still have constipation so need to take a serious look at my diet and changing that...