Cough Medicines, Nonprescription

Choosing a cough medicine can be confusing. Many different medicines for coughs are available without a prescription. There are different types of cough medicines for different kinds of coughs. A cough can be dry and hacking. Or it may be deeper, even painful sometimes, and the cough may bring up mucus or phlegm. Healthcare providers call this deeper cough a productive cough because it produces mucus. So when you are buying nonprescription cough medicine, you need to decide: Do you need to get relief from the cough so that you are coughing less? Or do you need something to help you loosen the mucus? Or both?

What are expectorants?

If you need to loosen and cough up mucus, an expectorant might help. Expectorants are cough medicines that may help to keep the mucus thin and bring up mucus from the lungs when you cough. This can relieve chest congestion and make it easier to breathe. The drug used most often as an expectorant is guaifenesin. You can buy many forms of this medicine without a prescription. It comes in capsules, tablets, liquids, and cough syrups. If you are a smoker or have asthma or chronic bronchitis, check with your healthcare provider before using an expectorant.

What are cough suppressants?

Cough suppressants are medicines that lessen the urge to cough. If you want relief from a dry, hacking cough, choose a cough suppressant. It may lessen your urge to cough. Cough suppressants should not be used if your cough is wet sounding and produces mucus.

The active ingredient in most cough suppressants is dextromethorphan. Cough medicines with the initials DM in the name have dextromethorphan in them. You can buy many forms of this medicine without a prescription under many brand names. Always follow label instructions on cough suppressants to avoid overuse and possible side effects.

What should I watch out for while taking these medicines?

• If you choose a cough syrup with an antihistamine in it, such as Benadryl (diphenhydramine), know that it may cause drowsiness. Antihistamines can also make the mucus dry and hard to cough up.
• Avoid using a cough suppressant if you have a cough with a lot of mucus that needs to be coughed up.
• Drink a lot of water to help loosen mucus and make it easier to cough up.
• If you are pregnant, consult your healthcare provider before taking any medicines.
• If you have a medical condition such as heart disease or diabetes, ask your pharmacist which cough syrups are safe to use with your other medicines.

If taken according to directions, these medicines are very safe and have few side effects. However, if you take too much, you may have symptoms such as a rash, lightheadedness, headache, nausea, and vomiting. If you have any of these symptoms, tell your provider.

Many nonprescription cough and cold medicines contain several ingredients to treat many symptoms. Read the labels and buy only the ingredients that you need. If you are not sure which medicine is best, ask your pharmacist.

These suggestions are intended for a new cough that you have had for a short time without other serious symptoms, such as shortness of breath or coughing up blood. If you do not know what is causing your cough or your cough has lasted more than a week, contact your healthcare provider.