guaifenesin, hydrocodone, and phenylephrine Health Article

• fast, pounding, or uneven heartbeat;

• severe dizziness, anxiety, restless feeling, or nervousness;

• easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms; or

• increased blood pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure).

• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);

Less serious side effects may include:

• dizziness or headache;

• feeling excited or restless;

• sleep problems (insomnia);

• nausea, vomiting, or stomach upset;

• mild loss of appetite;

• warmth, tingling, or redness under your skin; or

• skin rash or itching.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

What other drugs will affect guaifenesin, hydrocodone, and phenylephrine?

Before taking guaifenesin, hydrocodone, and phenylephrine, tell your doctor if you are using any of the following drugs:

• methyldopa (Aldomet);

• medicines to treat high blood pressure;

• a beta-blocker such as atenolol (Tenormin), carteolol (Cartrol), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal), sotalol (Betapace), timolol (Blocadren), and others; or

• an antidepressant such as amitriptyline (Elavil), clomipramine (Anafranil), imipramine (Janimine, Tofranil), and others.

This is not a complete list and there may be other drugs that can affect guaifenesin, hydrocodone, and phenylephrine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about guaifenesin, hydrocodone, and phenylephrine.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.