While generally safe, Guaifenesin can cause mild side effects. The most frequently reported include nausea and vomiting. These usually resolve on their own and don’t require medical attention. However, persistent or severe nausea should prompt consultation with a doctor.
Dizziness is another potential side effect. If you experience dizziness while taking this medication, avoid driving or operating machinery until the symptom subsides. Staying well-hydrated can sometimes help mitigate this.
Headache is also possible. Over-the-counter pain relievers, like acetaminophen, might provide relief. If headaches are severe or persistent, seek medical advice.
Less Common Side Effects
Less frequently, individuals report stomach upset or diarrhea. These are usually mild and temporary. However, prolonged diarrhea could lead to dehydration, so staying hydrated is key. Consuming bland foods might also help.
Serious Side Effects (Rare)
Although rare, serious reactions are possible. These include allergic reactions, such as skin rashes, hives, or difficulty breathing. Seek immediate medical attention if you experience any allergic symptoms. This is crucial for your safety.
Summary of Side Effects
| Nausea/Vomiting | Common | Monitor; contact doctor if persistent |
| Dizziness | Common | Avoid driving; stay hydrated |
| Headache | Common | Use over-the-counter pain relief; consult doctor if severe |
| Stomach Upset/Diarrhea | Less Common | Stay hydrated; eat bland foods |
| Allergic Reaction | Rare | Seek immediate medical attention |
This information is not a substitute for professional medical advice. Always consult your doctor or pharmacist if you have concerns about side effects or interactions with other medications.
