Corex Dx(50ml)

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Chlorpheniramine(4mg /5ml)


Chlorpheniramine is used to relieve symptoms of  runny nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu and allergies due to food and insect bites and hay fever.

How it works

Chlorpheniramine belongs to class of medications called antihistamines. It acts by blocking a natural chemical (histamine) that your body makes during an allergic reaction. Histamine is responsible for many symptoms of allergy. 

Common side effects

dizziness, low blood pressure, increased heart rate, and hair loss, breathlessness, loss of appetite, and diarrhea, indigestion, diarrhea, unpleasant dreams, inflammation of the liver including yellowing of the skin and eyes, fainting, abnormal structure, abdominal cramps, nausea, thumping, sneezing, irritability, sensitivity to sunlight, abnormal coordination, widespread, Very Common: sedation, vomiting, depression, chest tightness., swelling of tissue under the skin, coughing, change from normal heartbeat, rashes due to allergy, function or quality of blood cells, thickening of bronchial secretions, muscle weakness, swelling of eye and lips, ringing in ears, allergic reaction, excitation, urge to vomit, rash, sudden, urinary retention, pounding or fluttering sensation in chest, dry mouth and fatigue.Frequency not known: reduced oxygen carrying capacity of blood due to destruction of red blood cells, skin, blurred vision, noisy respiration, abdominal pain, widespread scaling and peeling of the skin associated with itching, itchiness and flushing of skin, confusion, headache, potentially severe and life-threatening allergic reaction consisting of one or more of the following: rapid heart rate, sleepiness .Common: disturbance in attention, fall in blood pressure, muscle twitching

Dextromethorphan(10mg /5ml)


Dextromethorphan is used to suppress dry coughs (coughs that do not produce phlegm or mucus).

How it works

Dextromethorphan belongs to class of drugs called antitussives. It works by decreasing activity in the part of the brain that causes coughing.

Common side effects

Skin reactions such as skin rash, feeling drowsy, headache and breathing problems., vomiting, urge to vomit, stomach pain, dizzy, fits, excited or confused, diarrhea or constipation


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Expert advice

  • Do not start or continue the chlorpheniramine tablets and consult your doctor, If you are allergic (hypersensitive) to chlorpheniramine or any of the other ingredients of chlorpheniramine tablet.
  • Do not take this medicine without consulting your doctor, if you are pregnant or breast feeding.
  • Do not take for longer than 7 days in a row. Talk with your doctor, if your symptoms do not improve after 7 days of treatment, or if you have a fever with a headache or skin rash.
  • Do not drive or operate machinery after taking chlorpheniramine because you may feel sleepy.

Frequently asked questions


Q. Is chlorpheniramine maleate safe/ safe in pregnancy?
It is safe if used at prescribed dose and duration as advised by your doctor. This drug can only be used in pregnancy if benefit outweighs the risk. Patients should follow the advice of the doctor regarding its use.

Q. Does chlorpheniramine or chlorpheniramine maleate cause increase in blood pressure/ drowsy/non drowsy/sedating/get you high/keep you awake/sleepiness/make you tired/weight gain?
Chlorpheniramine causing these side effects is common or rare. Always consult your doctor, if you experience any of these side effects.

Q. Is chlorpheniramine like Benadryl?
No, chlorpheniramine is different from Benadryl.

Q. Is chlorpheniramine prescription?
Yes, it is available with doctor’s prescription only.

Q.Can I take chlorpheniramine or chlorpheniramine maleate with Panadol/ cetirizine /Zyrtec/ Allegra/ warfarin/ diphenhydramine/ ibuprofen/Claritin/guaifenesin/Benadryl?
Yes, but taking other medicines may alter the effects of chlorpheniramine. Always consult your doctor for the change of dose regimen or an alternative drug of choice that may strictly be required.

Q. Does chlorpheniramine contain aspirin?
No, it does not contain aspirin in it. Chlorpheniramine is a different drug than aspirin.


Q. Is dextromethorphan a steroid/an opiate/an antihistamine/ a narcotic/an NSAID/a controlled substance/contain alcohol/have codeine?
Dextromethorphan is a decongestant and not a steroid, antihistamine, opiate, NSAID or narcotic, but can have addictive effects if taken at large doses than recommended. It does not contain codeine or alcohol. It is not a controlled substance.

Q. Does dextromethorphan work/ how much dextromethorphan can i take for cough?
Dextromethorphan works for most of the patient. It should be taken in amounts exactly as directed on the label, or as prescribed by your doctor. Cough medicine is usually taken only for a short time until your symptoms clear up. Do not use the medication in larger amounts, or use it for longer than recommended.

Q.  Is dextromethorphan safe/ safe during pregnancy/ does dextromethorphan makes you sleepy/make you tired/ raise blood sugar? 
Dextromethorphan causes mild sedation effect thus can make you feel sleepy. It does not raise blood sugar or make you tired. Dextromethorphan is generally safe if taken at recommended doses and duration. It should not be used during pregnancy unless the benefit outweighs risk.

Q. Can i take dextromethorphan with high blood pressure/ safe for high blood pressure/ raise blood pressure/ thin blood?
Though it isn’t reported, but it should be used carefully in people with high blood pressure, as dextromethorphan may cause high blood pressure and the effectiveness of dextromethorphan is decreased by high blood pressure medications. 

Q. Can I take dextromethorphan with benzonatate/acetaminophen/codeine/ibuprofen/ diphenhydramine/pseudoephedrine/guaifenesin/Tamiflu/Benadryl?
Drug interaction with any of the above mentioned drugs is not documented, but it can occur. Always follow your doctor’s advice before taking any medicine with dextromethorphan.

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