Drug Reference

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Narcotic Cough/Cold Preparations Oral tablet

Additional titles for this drug

Allfen CD 400mg-10mg Tablet, Allfen CDX 400mg-20mg Tablet, Brontex 10mg-300mg Tablet, Codeine Phosphate/Guaifenesin 10mg-300mg Tablet, Codeine/Guaifenesin 10mg-300mg Tablet

What is this medicine?

CODEINE; GUAIFENESIN (KOE deen; gwye FEN e sin) is a cough suppressant and expectorant. It breaks up and clears congestion. This medicine also helps to stop or reduce coughing. It will not treat an infection.

How should I use this medicine?

Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Take this medicine with food or milk if it upsets your stomach. Take your doses at regular times. Do not take your medicine more often than directed. If you are taking this medicine on a regular basis, do not suddenly stop taking it. Your doctor may want to slowly lower your dose.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 6 years old for selected conditions, precautions do apply.

What side effects may I notice from receiving this medicine?

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 problems

  • confusion

  • hallucinations

  • irregular heartbeat

  • seizures

  • trouble passing urine

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • blurred vision

  • constipation

  • flushing or sweating

  • headache

  • itching

  • stomach upset, nausea

What may interact with this medicine?

  • certain medicines used for pain

  • certain medicines used for sleep, anxiety or depression

  • MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

  • medicines used to treat opioid addiction or overdose

What if I miss a dose?

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.

Where should I keep my medicine?

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). Throw away any unused medicine after the expiration date.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • Addison's disease

  • drug or alcohol abuse or addiction

  • enlarged prostate

  • glaucoma

  • fever

  • heart disease or high blood pressure

  • intestinal or stomach problems

  • kidney disease

  • liver disease

  • lung disease like asthma or emphysema

  • recent surgery or injury

  • seizures

  • thyroid disease

  • trouble passing urine

  • an allergic or unusual reaction to codeine, hydromorphone, hydrocodone, oxycodone, morphine, guaifenesin, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Tell your doctor or health care professional if your symptoms do not improve or if they get worse. If you have a high fever, skin rash, or headache, see your health care professional.

Drink several glasses of water each day.

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.

The medicine may cause constipation. Try to have a bowel movement at least every 2 to 3 days. If you do not have a bowel movement for 3 days, call your doctor or health care professional.

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Medicap Pharmacy
400 1st Avenue West
Newton, IA 50208

Ph. 641-792-3528
Fx. 641-792-3526

Pharmacy Hours:

Mon-Fri: 8:30am-6:30pm
Sat: 9:00am-1:30pm
Sun: Closed

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