Guaifenesin extended release?

Guaifenesin extended-release (ER) is a cough medicine that releases the drug slowly over about 12 hours to help thin mucus and make it easier to cough up. It’s usually taken twice a day.

Key points:
- Typical adult dosing: 600 mg every 12 hours. Do not exceed 2 tablets (1200 mg) in 24 hours. Some products may use different strengths (e.g., 1200 mg tablets) but you should always follow the label.
- How to take: swallow the tablet whole with a glass of water. Do not crush, chew, or break ER tablets.
- When to use: for chest congestion due to colds or infections when mucus is thick or difficult to clear.
- Age guidelines: ER formulations are generally for adults and sometimes older children. Check the product label for age-specific dosing. Do not use ER guaifenesin for kids under the label’s minimum age.
- Safety: Common side effects are usually mild (nausea, stomach upset, dizziness, headache). Stop if you develop a rash or any signs of an allergic reaction. If you’re pregnant or breastfeeding, or have liver/kidney disease, talk to a healthcare provider before use.
- Interactions: Avoid taking multiple guaifenesin-containing products at the same time to prevent overdose. There aren’t many major drug interactions, but tell your pharmacist about all medicines you’re taking.

If you have a particular product in mind (brand or country), or you want dosing for a specific age, I can tailor the info. Also, if your cough lasts more than about 7 days, or you have fever, chest pain, or shortness of breath, seek medical advice.