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Generic Name: [KLOR-fen-IR-a-meen, FEN-il-EFF-rin, and FEEN-il-toe-LOX-a-meen] Chlorpheniramine, phenylephrine, and phenyltoloxamine
Names of Brands: Nalex-A, Chlorex-A, NoHist-A, West-Decon M
The Class of Drug: Upper respiratory combinations

What is Nalex-A?

Chlorpheniramine and phenyltoloxamine can be described as antihistamines, which reduce the effects of the natural chemical histamine within the body. Histamine is known to cause coughing, itching, watery eyes, and a runny nose.

Phenylephrine Phenylephrine is an anti-congestant which shrinks blood vessels within those nasal passages. The blood vessels that are dilated can cause nose congestion (stuffy nasal congestion).

Nalex A is a combination medication designed to treat cough, stuffy or runny nose, itching, sneezing, and watery eyes caused by allergies, a typical cold, or influenza.Nalex-A is not a treatment for a cough caused by smoke, asthma, or emphysema.Nalex-A can also be employed for reasons not mentioned in this medication guide.

Side Effects of Nalex-A

See a doctor immediately. If you experience any of the following symptoms as warning signs of reactions to an allergen: hives, trouble breathing, or swelling of your lips, face, or tongue,

This medicine could trigger severe adverse reactions. Stop taking this medicine and contact your doctor immediately if you suffer from:

  • Rapid or irregular heart rate;
  • Beats of your heart, or the sound of a fluttering chest
  • Uncomfortable or difficult urination; very little or no urination;
  • Tremors, seizures (convulsions),
  • Vision changes, severe dizziness, and feeling like you might pass out.

Common negative side effects of Nalex A could include:

  • Headache, dizziness, or drowsiness;
  • Dry the nose, mouth, or throat;
  • Uneasy stomach and loss of appetite; vomiting; constipation;
  • Blurred vision
  • Sleep problems (insomnia);
  • Experiencing a sense of anxiety or excitement (especially for children).

This isn't a complete list of all the side effects. Other side effects could occur. Consult your physician to seek medical advice on adverse effects. You can report adverse reactions to the FDA at 1-800-FDA-1088.


Do not take this medication if you've had an MAO inhibitor within the last 14 days. A potentially dangerous interaction between drugs can happen. MAO inhibitors are isocarboxazid, linezolid, methylene blue injection, rasagiline, phenelzine, and tranylcypromine.

Before you take this drug

Don't take this medication if you've had an MAO inhibitor within the last 14 days. A potentially dangerous interaction between drugs may happen. MAO inhibitors are isocarboxazid, linezolid, Methylene Blue injection, rasagiline, phenelzine, and tranylcypromine.

To ensure this medicine is appropriate for you, consult your doctor if:

  • A blockage inside your stomach (stomach and intestines);
  • Hypertension, heart disease, coronary artery disease;
  • Glaucoma;
  • Kidney disease or liver failure;
  • Asthma, COPD asthma or COPD, cough that is mucus, or a cough that is due to smoking, emphysema, chronic asthma, or chronic bronchitis;
  • Bladder obstruction or other issues;
  • Pheochromocytoma (an adrenal gland tumour);
  • Hyperactive thyroid
  • If you are taking potassium (Cytra, Epiklor, K-Lyte, and K-Phos), Kaon, Klor-Con, Polycitra, or Urocit-K,

FDA classification for pregnancy C It is not clear whether Nalex-A can cause harm to a baby who is not yet born. Inform your doctor if you are expecting or planning to fall pregnant while taking the medication.

The medicine could be passed in breast milk and cause harm to a nursing infant. Alopecia-related medications and decongestants can also affect the production of breast milk. Consult your physician if you are nursing babies.

How to Take Nalex-A?

Take it exactly as indicated on the label or as directed by your physician. Don't use in greater quantities, in smaller quantities, or for longer periods than prescribed. Cough and cold medicines are usually used only for a short period of time until the symptoms subside.

Do not give this medicine to a child who is less than four years old. Always consult a physician prior to giving a cold or cough medicine to children. Death can occur because of the misuse of cold and cough medicines by very young children.Measure the liquid dosage using an appropriate dose-measuring spoon or medicine cup. If you don't own a device for measuring doses, request one from your pharmacist.If you are in need of an operation or other medical examination, inform the doctor or surgeon before the appointment time if you took this medication within the last few days.

Do not take it for more than seven consecutive days. Consult your physician if your symptoms don't improve after seven days of treatment or if you suffer from an underlying fever that causes headaches or the appearance of an itchy skin rash.Keep at room temperature, away from heat and moisture.

What happens If I Miss a Dose?

Because Nalex-A is taken only when required, it is possible that you are not following a regular dosing regimen. If you take the medication frequently, you should take the missed dose when you remember. Do not take your missed dose if you are nearing the time for the next dose. Do not take any additional medication in order to compensate for the dose you missed.

What happens If I overdose?

Get medical attention in an emergency or contact the Poison Help line toll-free at 1-800-222-1222.

What should be avoided?

Drinking alcohol can trigger the effects of Nalex A in certain ways.Consult a physician or pharmacist before taking any other cough, cold, allergy, or sleep medication. Antihistamines as well as decongestants are found in a wide range of combination medicines. When you combine certain medicines, it can result in too much of a particular substance. Examine the label to find out if it contains an antihistamine or decongestant.

This medication could cause blurred vision and a decrease in your ability to think or react. Be cautious if you drive or engage in activities that require that you be aware and in a position to clearly see.

Avoid being overheated or dehydrated when exercising in hot temperatures. Chlorpheniramine as well as phenyltoloxamine could reduce sweating and make you more susceptible to suffering from heat stroke.

Interaction with other drugs

Inform your doctor about any medications you are taking, including prescription and non-prescription drugs, vitamins, and herbal products. Certain medicines may cause undesirable or even dangerous reactions when taken together. Some interactions may not be included in this guideline for medications.

The use of Nalex-A together with other medications that make you sleepy or slow your breathing could cause more harm. Talk to your doctor prior to using Nalex A with a sleeping drug, a narcotic pain medication, or a muscle relaxer medication to treat depression, anxiety, depression, or seizures.