1mg, best e pharmacy in India
MRP: Rs. 61 for 1 bottle(s) (100 ML syrup each)
Unfortunately, we don't have any more items in stock

food interaction for COSYP

alcohol interaction for COSYP

pregnancy interaction for COSYP

lactation interaction for COSYP

There is no data available. Please consult doctor before consuming the drug.
Cosyp syrup may cause excessive drowsiness and calmness with alcohol.
Cosyp syrup may be unsafe to use during pregnancy.
Either animal studies have shown adverse effect on fetus and there are no human studies or studies in human and animals are not available. It should be given only if potential benefits justifies risk to the fetus. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.




Pseudoephedrine is used for nasal, sinus (air cavities) and upper respiratory tract decongestion.

How it works

Pseudoephedrine belongs to the class of medications known as decongestants. Pseudoephedrine works by relaxing the smooth muscles in the nasal cavity which decreases excess secretion of mucous in nasal cavity and sinuses (air cavities) thereby relieving congestion.

Common side effects

Nausea, Nervousness, Palpitations, Dizziness, Shortness of breath, Headache, Insomnia, Restlessness, Stomach pain, Tachycardia, Heart rate irregular, Vomiting, Weakness


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

Nausea, Constipation, Drowsiness, Dry mouth, Dry throat, Dry skin, Headache, Inability to empty the urinary bladder, Loss of appetite, Nasal congestion, Chest congestion, Vomiting


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

Nausea, Nervousness, Drowsiness, Dizziness, Lightheadedness, Restlessness, Stomach pain, Vomiting


No substitutes found

Expert advice for COSYP

  • Inform your doctor if you have heart, blood vessel, liver, kidney, bladder or prostate disorder.
  • Seek immediate medical attention if you experience difficulty in breathing, swollen lips or skin, severe rashes and itching, hallucinations, restlessness or sleep disturbances.
  • Inform your doctor if you are taking or have recently taken medication for any mental illness, high blood pressure or glaucoma (increased pressure inside the eye that causes visual problems).
  • Do not take if allergic to pseudoephedrine or any of its ingredients.
  • Do not take if  medication is going for any mental disorder, nasal sprays for decongestion, high blood pressure.
  • Do not take if suffering with kidney, heart, liver, blood vessel disorder or diabetes, hyperthyroidism, phaeochromocytoma (a rare tumor of the adrenal glands) or glaucoma.
  • Do not take if below below 12 years.
  • Do not take if Pregnant and breastfeeding.

Frequently asked questions for COSYP


Q. Can I take pseudoephedrine for allergies?
Pseudoephedrine does give symptomatic relief from seasonal allergic conditions such as runny nose and nasal decongestion. 

Q. Can I take pseudoephedrine with ibuprofen?
Yes. Ibuprofen may relieve fever experienced during cold.


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/ 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. 
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.


Content on this page was last updated on 28 September, 2016, by Dr. Varun Gupta (MD Pharmacology)