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Codeine / promethazine and Drowsiness: What Users Say

Drowsiness: mentioned by 7 users (11.3%)

Based on user experiences from 62 Codeine / promethazine reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

drowsiness 11.3%
cough 6.5%
nausea 4.8%
vomiting 4.8%

Reviews for Codeine / promethazine

Commonly mentioned side effects
  • pin...
  • March 3, 2014

For Cough "Had a very bad cough/cold/flu for almost three weeks; nothing over the counter helped; finally prescribed this cough medication, and yes, I actually slept all night and didn't cough at all until it started to wear off, but it is very sedating."

10 / 10
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30 Report
  • Anonymous
  • July 27, 2015

For Cough "Helped a lot with my cough, did make me quite drowsy during daytime hours, so beware. After taking for several days as prescribed, coming off of it has made me quite dizzy and generally not feeling great, might be a part of the controlled element of it. For me, definitely worth the other stuff, really good for calming my cough."

9 / 10
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17 Report
  • Hin...
  • February 17, 2016

For Cough "5 days no sleep due to a horrible cough. I was very excited to try this. It seems to have made my cough worse or at least didn't help at all. Got extremely drowsy, so fought a hacking cough while fighting to stay awake. Miserable night!"

1 / 10
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15 Report
  • Sup...
  • Taken for less than 1 month
  • January 17, 2017

For Cough "Very bad cough, congestion, sneezing with flu symptoms. After the first dose, the coughing had almost subsided and made me drowsy enough to get some much-needed rest since not sleeping in about 48 hours. It felt warm in my throat and chest, which took away that 'burning' feeling. I only used it for 3 days before the cough was barely noticeable."

9 / 10
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9 Report
  • Tat...
  • February 9, 2018

For Cough "After being prescribed, I did some extensive research because the paranoid person that I am, I always research medicines I'm prescribed prior to consuming them. I would've been better off listening to the negative reviews because that's exactly the kind of experience I had (negative). I was advised it would make me drowsy, so I had to take it before bed to help me sleep through the night due to a horrendous cough I've had for about 4-5 days. About 20 minutes in, taking 10 mL, my coughing got way worse, and I felt like I would vomit every time I coughed up a lung. Yes, it made me drowsy, but did absolutely nothing for my cough aside from making it ten times worse."

1 / 10
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9 Report

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  • Bob...
  • Taken for less than 1 month
  • December 24, 2013

For Cough "Excellent medicine. Stops the cough. Give it 1/2 hour to kick in, then it will put you to sleep."

10 / 10
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39 Report
  • kon...
  • Taken for less than 1 month
  • December 5, 2016

For Cough "Calmed my cough overnight, but left me quite lethargic, groggy the next day :-(("

3 / 10
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7 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.