The Web Health


Chlorex A

Generic name: chlorpheniramine, phenylephrine, and phenyltoloxamine [KLOR-fen-IR-a-meen, FEN-il-EFF-rin, and FEEN-il-toe-LOX-a-meen]
Brand names: Nalex-A, Chlorex-A, nohist-A, West-Decon M
Drug Class: Upper Respiratory Combinations

What is Chlorex A?

Chlorpheniramine and phenyltoloxamine are antihistamines that reduce the effects on the body of the natural chemical histamine. Histamine may cause symptoms such as sneezing and itching. It can also lead to watery eyes and a runny or watery nose.Phenylephrine shrinks the blood vessels of the nasal passages. Nasal congestion may be caused by blood vessels widening.Chlorex A, also known as a combination drug, is used to treat allergies, colds, flu, and sneezing. It can also be used for watery eyes, itching, or itchiness.Chlorex A does not treat coughs caused by emphysema, asthma, or smoking.Chlorex A can be used in other ways not mentioned in this guide.

Side effects of Chlorex A

If you experience symptoms indicative of an allergic reaction, such as hives, difficulty breathing or swelling of lips, face, tongue or throat - seek medical assistance immediately!

This medicine can cause serious side effects. If you experience:

  • Fast or irregular heart rate
  • If you feel your heart pounding or fluttering, then this is a sign that you are experiencing a cardiac arrest.
  • The urination is difficult or painful, or there is little or no urination.
  • Tremors, seizure (convulsions);
  • Vision changes, severe dizziness, and feeling like you might pass out.

Chlorex A can cause the following side effects:

  • Headache, dizziness, drowsiness;
  • Dry mouth, nose, or throat
  • Constipation, nausea, and an upset stomach.
  • Blurred vision
  • Sleep problems (insomnia);
  • Feeling restless or excited, especially in children

There may be other side effects. Call your doctor immediately if experiencing side effects; to report these side effects to the FDA directly call 1-800-FDA-1088.


You should not take this medication if you've taken an MAO inhibitor in the last 14 days. Harmful drug interactions may occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline and tranylcypromine.

Before you take this drug

If you have taken a MAO inhibitor within the last 14 days, do not take this medication. It is possible that a dangerous drug interaction will occur. MAO inhibitors are isocarboxazid (linezolid), methylene blue injection, phenelzine, and selegiline.

Before taking medication, always inform your physician of any of the following side effects to ensure its safety:

  • A blockage of your digestive tract, such as the stomach or intestines;
  • Heart disease and coronary arterial disease.
  • Glaucoma;
  • Liver or kidney disease
  • Chronic bronchitis, emphysema, or asthma; coughing up mucus or coughing due to smoking;
  • Other urination issues or bladder obstruction
  • Pheochromocytoma
  • Overactive thyroid gland;
  • If you are taking potassium (Cytra Epiklor K-Lyte K-Phos Kaon Klor-Con Polycitra Urocit-K),

FDA pregnancy class C There is no information on whether Chlorex A can harm an unborn child. If you plan to get pregnant or are already pregnant, tell your doctor.This medicine may pass into breastmilk and harm a nursing infant. Antihistamines, decongestants, and other medications can also reduce the production of breast milk. You should tell your doctor if you're breastfeeding a child.

How to take Chlorex A?

Do not exceed the recommended dosage or duration. Use the recommended dose or duration. Do not exceed it. Cold or cough medicine is typically taken for only a few days until symptoms disappear.This medication should not be given to children younger than four years of age. Ask a doctor first before giving cough or cold medication to your child. Children as young as 4 can perish due to misusing cough medicines.You should not chew or crush an extended-release tablet. Swallow the entire tablet.Use a medicine cup or spoon to measure liquid medicines. Ask your pharmacist if you don't have a device for measuring doses.Tell your doctor or surgeon, if you've taken this medication within the last few days, if you are going to need medical testing or surgery.Take the medication for no more than seven days. Speak to your doctor if symptoms don't improve after seven days or you experience a fever and headache with a skin rash.Store away from heat and moisture at room temperature.

What happens if I miss the dose?

You may not have a schedule for Chlorex A, as it is only taken when necessary. Take the missed dose immediately if you take the medication regularly. If your next scheduled dosage is approaching, skip the missed dose. You should not take more medicine to compensate for a missed dose.

What happens if I overdose?

Dial 1-800-222-1222 immediately in case of poisoning and seek immediate medical advice or call our 24-hour Poison Help Service on 1800-222-1223.

What should be avoided?

Chlorex A can cause certain side effects to be exacerbated by alcohol consumption.Before using any other allergy, cold, or sleep medication, consult your doctor or pharmacist. Many combination medications contain antihistamines or decongestants. You can take too much medication by taking certain products together.Checking a medication's label to identify whether or not it contains antihistamines or decongestants is simple.This medication can cause blurred or double vision, and it may affect your ability to think clearly. You should be careful when driving or doing anything else that requires alertness and the ability to see clearly.Avoid overheating or dehydration during exercise or in hot weather. Chlorpheniramine or phenyltoloxamine may decrease sweating, making you more susceptible to heatstroke.

Interaction with other drug

Inform your doctor of all the medicines you take, including over-the-counter and prescription medicines, vitamins, and herbal remedies. Combinations of medicines may cause unwanted or adverse side-effects when taken together; unfortunately, this medication guide cannot list every possible interaction.Chlorex A can worsen the effects of other drugs, which make you sleepy and slow down your breathing. Consult your doctor before combining Chlorex A and sleeping pills, narcotic pain medicines, muscle relaxers, or medications for anxiety, depression, or seizures.