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Doctor insights on: Promethazine Dm Syrup

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Hello. I just took promethazine dm syrup for my cough the first time and I started coughing excessively. I can not stop coughing am I allergic ?

Hello. I just took promethazine dm syrup for my cough the first time and I started coughing excessively. I can not stop coughing  am I allergic ?

Maybe: Persistent post nasal drip (allergy or non-allergy related), acid reflux, asthma, or vocal cord problem are common causes for persistent cough. Medication side effect is often overlooked as well. Consider a virtual consult to discuss any related symptoms and more about your history for guidance. ...Read more

Dr. Syed H. Sajid
160 doctors shared insights

Promethazine (Definition)

Prevents and controls motion sickness, nausea, vomiting, and dizziness. Also used to relieve or prevent allergic reactions, helps people go to sleep, and control their pain or anxiety before or after ...Read more


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My doctor prescribed me promethazine dm syrup for congestion and sinus infection. Should I start it at bedtime? I have a toddler to care for.

My doctor prescribed me promethazine dm syrup for congestion and sinus infection. Should I start it at bedtime? I have a toddler to care for.

Yes: It will most likely make you pretty drowsy, so yes I would advise you starting it when the baby is sleeping. :) ...Read more

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Is a cough syrup with codine better then promethazine dm for coughs?

Is a cough syrup with codine better then promethazine dm for coughs?

It depends: Upon what is cough due to. Is it just allergy? Asthma? From smoking? Infection causing Bronchitis? Pneumonia? And also upon what did you try OTC. Warm Ginger tea is very good for soothing throat. ...Read more

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Is promethazine dm equivilant to codine cough syrup?

Is promethazine dm equivilant to codine cough syrup?

Not equivalent: but dextromethorphan in adequate dosage has cough suppressant activity equivalent to codeine. ...Read more

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I was prescribed promethazine DM. 3 out of 5 times taking it i would vomit. What else can i take? I bought OTC DM syrup and I threw up as well.

I was prescribed promethazine DM. 3 out of 5 times taking it i would vomit. What else can i take? I bought OTC DM syrup and I threw up as well.

Doff That Cough!: Something's going on here. First, just don't take any more of that stuff. There are other ways to beat a cough. I assume you're taking this for a cough, right?? Try a steamy shower and/or steam from a tea pot. Try a teaspoon of honey. Try one or two capsules of Benadryl. But if nothing works go see a doctor. They could try therapy you couldn't do at home, like a nebulizer or other medications, etc ...Read more

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Can i take Mucinex dm and promethazine dm together?

Can i take Mucinex dm and promethazine dm together?

No: The mixing of the two will have you taking too much dm or dextromethorifan. ...Read more

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Can I take promethazine Dm and Nyquil together?

Can I take promethazine Dm and Nyquil together?

NyQuil: NyQuil contains antihistamines, acetaminophen, a cough suppressant and alcohol. Promethazine is an antihistamine used to relieve vomiting and motion sickness. The combination could cause severe sedation, seizures, drowsiness, dizziness, blurred vision, and dry mouth. I would avoid taking both NyQuill and promethazine. ...Read more