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Dangers of long-term Phenergan usage?

by bardcan, Sep 02, 2009 11:39PM
Hi, I have severe allergies and the resulting nasal congestion and asthma makes it very hard for me to sleep at night. I have tried dozens of sedatives and sleeping drugs (as well as the whole meditation, therapy angle) and surprisingly, the most effective solution has been 20 - 25mg of phenergan each night. My immunologist expressed concern about me taking phenergan every night, but I have been doing so for about 3 months now will no ill effects.
Does anyone know if there is a danger of taking this strong dose of Phenergan regularly for a long period of time?
Thanks!
Member Comments (3)

by doctornee medical, Sep 05, 2009 08:25PM
To: bardcan
Hi
Welcome to the forum!
Long term use of Phenargan can cause drowsiness, blurred vision, dizziness; confusion, disorientation, incoordination, fatigue, insomnia (later on), tremors, convulsive seizures, excitation, mania, hallucination, increase in blood pressure, heart rate, and decrease in the blood cell count. After use for some time, this drug will start causing nasal stuffiness and asthma like symptoms, and your whole purpose of taking the drug would be lost.
Please go through proper medication for your condition. There are many other safer drugs to take care of asthma and nasal congestion. Please take drugs as advised by your doctor. Wearing masks specially designed to filter allergens will help you in a big way. Talk to your specialist about this.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!

by bardcan, Oct 17, 2009 09:37PM
To: doctornee medical
Wow! Thanks for the info... it's interesting to note that my GP did not mention these long term side effects even after I asked about the effects of long term use.
My question is: how long is too long? A few weeks, months, years?
Thanks!

by doctornee medical, Oct 19, 2009 11:51PM
To: bardcan
Hi
Well, there is no clear cut definition for long term use. Also in patients with asthma and nasal congestion it is advisable to not take the medication for too long as it can precipitate an asthma attack after chronic use. You have not suffered any side effects after 3 months of use (which can be considered long) whereas another person may feel the effects earlier. Hence the pros and cons can be decided on case to case basis. Please discuss with your doctor. Take care!
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