food interaction for SUDIN

alcohol interaction for SUDIN

pregnancy interaction for SUDIN

lactation interaction for SUDIN

Avoid Sudin kid syrup with caffeine and chocolate as well as food containing caffeine and chocolate such as tea leaves, cocoa beans.
Sudin kid syrup may cause excessive drowsiness and calmness with alcohol.
Taking phenylpropanolamine with alcohol can increase the risk of cardiovascular side effects such as increased heart rate, chest pain, or blood pressure changes.
Sudin kid syrup may be unsafe to use during pregnancy.
Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.




Dextromethorphan is used for dry cough.

How it works

Dextromethorphan decreases the perception of pain by blocking the transmission of pain signals to the brain.

Common side effects

Sedation, Sleepiness, Fatigue, Vomiting, Weakness, Dehydration, Dizziness, Lightheadedness, Headache, Sweating, Anemia, Nausea, Edema, Constipation, Dry mouth.


Diphenhydramine is used in the treatment of allergic disorders and motion sickness.

How it works

Diphenhydramine blocks the action of certain chemical messengers that are responsible for inflammation, congestion, itching, and other allergic reactions.

Common side effects

Nausea, Nervousness, Palpitations, Abnormal sensation in skin, Blurred vision, Confusion, Convulsion, Difficulty in paying attention, Dizziness, Drowsiness, Dry mouth, Shortness of breath, Difficulty in urination, Eye swelling, Lip swelling, Fatigue, Headache, Hypersensitivity reaction, Inability to empty the urinary bladder, Increased energy, Muscle twitching, Restlessness, Ringing in ear, Sedation, Tachycardia, Thickened respiratory tract secretions, Unsteadiness, Vomiting.


Phenylpropanolamine is used in the treatment of allergic disorders.

How it works

Phenylpropanolamine belongs to a class of medications called nasal decongestants. It stimulates receptors on blood vessels in the nose and sinuses leading to its constriction and reduction in blood flow thereby relieving congestion.

Common side effects

Systemic hypertension (high blood pressure), Nausea, Insomnia (difficulty in sleeping), Palpitations.


No substitutes found

Expert advice FOR SUDIN

  • Use dextromethorphan exactly as directed on the label, and in doses prescribed by your doctor.
  • Cough medicine is usually taken only for a short time until the symptoms clear up.
  • If syrup, measure the liquid form of dextromethorphan with a special dose-measuring spoon or cup, not a regular table spoon.
  • Allow the dextromethorphan lozenge or disintegrating strip to dissolve in your mouth.
  • Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.
  • Do not drive or use machines while taking this medicine until you are sure you are not affected.
  • Do not drink alcohol (wine, beer, spirits)whilst taking this medicine. Alcohol increases the risk of side effects occurring and may make you feel drowsier.
  • Always ask a doctor before giving cough or cold medicine to a child. Death can occur from the misuse of cough or cold medicine in very young children.

Frequently asked questions FOR SUDIN


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
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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.


Q. Is diphenhydramine a blood thinner/narcotic/water soluble?
No, it is an antihistaminic drug and not a blood thinner or narcotic
Q. Is diphenhydramine Hcl the same as Benadryl?
Benadryl is a trade name of product containing the drug diphenhydramine
Q. Is diphenhydramine hydrochloride/Benadryl safe?
It is safe if used at prescribed doses for the prescribed duration as advised by your doctor
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Q. Is Benadryl safe for infants?
No, it should not be given to infants. Always follow doctor's advice regarding its use
Q. Is Benadryl an expectorant/antibiotic?
Benadryl is an expectorant as guaifenesin is one of its components. And it is not an antibiotic
Q. Is Benadryl banned in India?
No, it is available in India
Q. Is Benadryl effective?
It is effective at prescribed doses for the prescribed duration and disease condition as advised by your doctor
Q. Can you take diphenhydramine/ Benadryl for anxiety/cold/hives/bug bites/sleep?
Diphenhydramine tablet is used for the relief of short term sleeplessness. It can be used for cold and treatment of hives. Always follow doctor's advice regarding its use
Q. Can I take Benadryl for a rash/dry cough/cold/eczema/ sinus infection/yeast infection/headaches/sinus/motion sickness/ skin rash/itchy skin?
Benadryl is used to treat sneezing, runny nose, itching, watery eyes, hives, rashes, itching, and other symptoms of allergies and the common cold. It is also used to suppress coughs, to treat motion sickness, to induce sleep, and to treat mild forms of Parkinson's disease. But, it is not used for eczema, sinus infection, and yeast infection. Always follow doctor's advice regarding its use
Q. Can I take diphenhydramine with hydrocodone/dextromethorphan and guaifenesin/ acetaminophen/phenylephrine/tramadol/Zoloft/ doxylamine succinate/prednisone/ citalopram/Advil?
Yes, but taking other medicines may alter the effects of diphenhydramine. Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required
Q. Can I take Benadryl with Zyrtec/Mucinex/Sudafed/ Tamiflu/ amoxicillin/Xanax/Advil/ azithromycin/Norco/robitussin?
Yes, but taking other medicines may alter the effects of Benadryl. Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required
Q. Does diphenhydramine make you sleepy/drowsy?
Yes, it makes you sleepy/drowsy. Always follow doctor's advice regarding its use
Q. Does diphenhydramine cause Alzheimer's/depression/constipation/dementia/increase blood pressure?
Diphenhydramine causing these side effects is rare or uncommon. However, consult your doctor if you experience any of these side effects
Q. Does diphenhydramine potentiate opiates?
No it does not potentiate opiates
Q. Does Benadryl make you sleepy/high/ raise blood pressure/weight gain?
Benadryl causing these side effects is rare or uncommon. However, consult your doctor if you experience any of these side effects.


Q. Is phenylpropanolamine the same as phenylephrine?
Phenylpropanolamine and phenylephrine are different drugs belonging to the same class of medications (nasal decongestants). Both are used to relieve blocked nose or sinuses caused by common cold and seasonal nasal allergies (hay fever)
Q. Does phenylpropanolamine cause stroke?
Phenylpropanolamine has shown to increase the risk of hemorrhagic stroke (bleeding in the brain). Women are at a higher risk.
Q. Is phenylpropanolamine a controlled substance?
Phenylpropanolamine is a controlled substance since it can be used for manufacturing of illegal drugs
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Q. Is phenylpropanolamine still on the market?
Phenylpropanolamine is banned in India due to increased risk of haemorrhagic stroke (bleeding in the brain) and is no longer marketed in India


Content on this page was last updated on 07 April, 2017, by Dr. Varun Gupta (MD Pharmacology)