Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Heed Side Effects Warnings!

This medication did absolutely nothing for my dog's allergies and skin itchiness/inflammation but did give him dry mouth and diarrhea. He's a 58-lb pitbull and I gave him two 4mg tablets at night (I was worried about lethargy so I opted for a bedtime dosage). He didn't poop at all the next day, and didn't poop (or drop a puddle, frankly) until the following evening (that's TWO DAYS!). He also whined and cried and was often sitting in the "sphinx" position (indicating his cramping and discomfort) and he drank more water than his usual intake. I basically had to let him out every hour or so. Obviously I stopped after 2 days of the medication and the diarrhea stopped in about 18 hours or so.In all fairness, the side effects are clearly listed, I just want to encourage other pet owners to take them seriously. Now we're on a soap-free veterinarian-prescribed shampoo and good old-fashioned Benadryl.