Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Watch Out For Ulcers or Internal Bleeding

This is what aspirin is made from. It does what is says it will do (it really helps with pain and stiffness), BUT it can also cause internal bleeding or ulcers. I would recommend using SOMETHING ELSE for aches and pains that doesn't have those potential side effects, such as T U R M E R I C. Turmeric does the same thing but has few side effects. Turmeric can thin the blood a bit, so you want to be careful if you are already taking blood thinners or if you are pregnant, but otherwise Turmeric does the same thing as this without the worries.If you take White Willow Bark and you get abdominal pain: STOP! If you start getting TIRED: STOP! You may have internal bleeding and not even KNOW it, which is WHY you are so tired! AVOID.