Drugs & Vitamins

Active Ingredients: Dihydrocodeine, Guaifenesin, and Pseudoephedrine
Other Names: DiHydro GP Syrup, Dihydrocodeine Bitartrate, Guaifenesin, and Pseudoephedrine Hydrochloride Syrup, Hydro-Tussin EXP Syrup, Pancof EXP Syrup
Rx Status: Available by prescription only
Generic Available: Yes
Product Images & Descriptions:

What is/are Hydro-Tussin EXP Syrup? (Back to top)
DIHYDROCODEINE, GUAIFENESIN, and PSEUDOEPHEDRINE is a cough suppressant, expectorant, and decongestant combination. It is used to treat cough and congestion. This medicine will not treat an infection. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

What should I tell my health care providers before I take this medicine? (Back to top)
They need to know if you have any of these conditions:

• diabetes
• drug abuse or addiction
• glaucoma
• heart disease
• high blood pressure
• intestinal problems
• kidney disease
• liver disease
• lung disease, asthma, or breathing problems
• stomach ulcer
• thyroid disease
• trouble passing urine
• an unusual or allergic reaction to codeine, dihydrocodeine, guaifenesin, pseudoephedrine, other medicines, foods, dyes, or preservatives
• pregnant or trying to get pregnant
• breast-feeding

How should I use this medicine? (Back to top)
Take this medicine by mouth. Follow the directions on the prescription label. Use a specially marked spoon or container to measure each dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. Take your medicine at regular intervals. Do not take it more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 2 years old for selected conditions, precautions do apply. Do not give this medicine to children under 2 years old.

Patients over 60 years old may have a stronger reaction and need a smaller dose.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

Note: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose? (Back to top)
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine? (Back to top)
Do not take this medicine with any of the following:

• alcohol
• ergot alkaloids like dihydroergotamine, ergonovine, ergotamine, methylergonovine
• MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
• stimulant medicines for attention disorders, weight loss, or to stay awake

• barbiturates like phenobarbital
• naltrexone
• medicines for blood pressure
• medicines for depression, anxiety, or psychotic disturbances
• medicines for heart problems
• medicines for sleep
• muscle relaxers
• narcotic medicines for pain
• other medicines for cold, cough, or allergy
• phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine

This list may not describe all possible interactions. Give your health care providers a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What side effects may I notice from this medicine? (Back to top)
Side effects that you should report to your doctor or health care professional as soon as possible:

• allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
• breathing trouble
• changes in blood pressure
• changes in vision
• confusion
• fast, irregular heartbeat
• feeling faint or lightheaded, falls
• hallucinations
• irritable or excited
• seizures
• trouble passing urine or change in the amount of urine

• constipation
• dry mouth, nose, or throat
• headache
• loss of appetite
• nausea, vomiting
• tiredness
• unusual sweating

This list may not describe all possible side effects.

What should I watch for while using this medicine? (Back to top)
Use exactly as directed by your doctor or health care professional. Do not take more than the recommended dose. You may develop tolerance to this medicine if you take it for a long time. Tolerance means that you will get less cough relief with time. Tell your doctor or health care professional if your symptoms do not improve or if they get worse.

If you have been taking this medicine for a long time, do not suddenly stop taking it because you may develop a severe reaction. Your body becomes used to the medicine. This does NOT mean you are addicted. Addiction is a behavior related to getting and using a drug for a nonmedical reason. If your doctor wants you to stop the medicine, the dose will be slowly lowered over time to avoid any side effects.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

Where should I keep this medicine? (Back to top)
Keep out of the reach of children. This medicine can be abused. Keep your medicine in a safe place to protect it from theft. Do not share this medicine with anyone. Selling or giving away this medicine is dangerous and against the law.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light. Throw away any unused medicine after the expiration date.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

Last Updated:April 14, 2008

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