What are the side affects with long term use of gravel?

Long-term use of guaifenesin, commonly known as Mucinex or "gravel," can lead to several side effects, including gastrointestinal issues like nausea, vomiting, and diarrhea. Some users may also experience dizziness, headaches, or allergic reactions. Additionally, overuse can lead to reduced effectiveness, where the body becomes accustomed to the medication, potentially causing reliance on it for relief. Always consult a healthcare professional for personalized advice regarding prolonged use.