April 26th
2008
10:15 AM
My 13 yr old daughter was put on Singulair along with Asmanex and Clarinex for her asthma about 6 weeks ago. Everything seemed to be going very well at first and her symptoms were starting to get controlled. I started noticing after about 3 to 4 weeks that her temper and attitude were getting much worse. Anyone with children this age knows what I mean but this was like a 180 degree turn for her. Her actions were becoming totally out of character. Before I knew it she would cry and get highly upset over the least little thing. Week 5 came around and things totally bottomed out. She came home from school and WAS NOT HERSELF. Made comments about how she hated her life and it was not worth living. Later that evening we had a big argument because I was telling her nothing was worth saying that. She went totally out of control and I had to physically restrain her to calm her down. It appeared everything was better so she went to her room. I went down to check on her and she calmly told me that she had taken advil and tylenol pm and things would be better for her forever now. We went to the ER where they made us wait for at least an hour, then finally took her back. She had to drink two cups of charcoal and was poked and prodded repeatedly. They did a catheter to get a urine sample. She was very cooperative but also was in a complete daze so who knows. The poor child couldn't even lift her head up when she started the vomiting to get rid of the drugs. It was very upsetting and sad. Her heart rate and blood pressure went very low and I really thought in the back of my mind that this was it. Finally, after several hours she started coming out of it and they sent us home. The next evening when she was starting to really come around she proceeded to tell me how she had been seeing a man walking around in her bedroom at night and she was afraid to go down there. Breaking down and crying telling me about all of the horrible nightmares she had been having recently and didn't know why. I thought what am I dealing with here? This just isn't her. Three days ago I heard about singulair in the news and looked it up on the internet. OH MY GOD THIS SOUNDED LIKE US!!!!! I immediately had her stop taking it and the next day phoned her asthma specialist who agreed she should stop now. We are going to watch her for two weeks and see if any symptoms return and then decide if she needs something else or will be fine on just the Asmanex. As a side note, she also mentioned being unable to concentrate in school (unable to do even the simplest math problems) and that her brain felt confused or like something was missing. She said this had been bothering her for several weeks. I know it was this drug. They really need to take this off the market NOW and stop flirting with disaster. The only reason I posted this was to let others know they are not alone.
-- By km39 | Reply | (12) replies | Private Message me
April 10th
2008
1:14 PM
When I saw that researchers acknowledged the number of potential gene variants that are involved in determining the efficacy of montelukast and then I am reading the reports of the side effects, I am wondering why montelukast was ever approved for seasonal allergies. Asthma is potentially life threatening. But why take Singulair -montelukast for annoying allergies that won't kill you.
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" However, logically one might predict that it will be the combination of the polymorphisms in these different key regulatory enzymes and receptors that may ultimately determine treatment response. There have been some attempts to tease out the possible contribution of different genes important in this pathway for treatment response to a Cys leukotriene receptor 1 antagonist.18 However, because of the number of potential gene variants that may contribute to efficacy, large studies will be needed to fully evaluate the potential contribution of pharmacogenetic variability in this pathway to treatment response to Cys leukotriene receptor 1 antagonists. Work in the cardiovascular field has demonstrated the potential importance of genetic variants in this pathway to disease risk and also to treatment response,19 suggesting the potential for important effects to be defined in asthma."
(Chest. 2006;130:1873-1878.)
© 2006 American College of Chest Physicians
Pharmacogenetics of Asthma
Ian P. Hall, DM
* From the Division of Therapeutics and Molecular Medicine, University Hospital of Nottingham, Nottingham, UK.
Correspondence to: Ian P. Hall, DM, Division of Therapeutics and Molecular Medicine, University Hospital of Nottingham, Nottingham NG7 2UH, UK; e-mail: Ian.Hall@nottingham.ac.uk
http://www.chestjournal.org/cgi/content/full/130/6/1873
.
-- By concernedcitizen | Reply | (1) replies | Private Message me
April 10th
2008
10:36 AM
Some of you who are following this site may remember that I posted that when I was following the pathways of the leukeotriene receptor antagonist Singulair that I got to a point where I concluded that there has to be a genetic component (meaning that there are different gene groups of people) and that the efficacy of Singulair (and possibly safety) can vary depending upon what gene group people are in. So I took a little time to see if anybody else was already studying that issue. And YES, they are -- including Merck.
quote:
" However, logically one might predict that it will be the combination of the polymorphisms in these different key regulatory enzymes and receptors that may ultimately determine treatment response. There have been some attempts to tease out the possible contribution of different genes important in this pathway for treatment response to a Cys leukotriene receptor 1 antagonist.18 However, because of the number of potential gene variants that may contribute to efficacy, large studies will be needed to fully evaluate the potential contribution of pharmacogenetic variability in this pathway to treatment response to Cys leukotriene receptor 1 antagonists. Work in the cardiovascular field has demonstrated the potential importance of genetic variants in this pathway to disease risk and also to treatment response,19 suggesting the potential for important effects to be defined in asthma."
(Chest. 2006;130:1873-1878.)
© 2006 American College of Chest Physicians
Pharmacogenetics of Asthma
Ian P. Hall, DM
* From the Division of Therapeutics and Molecular Medicine, University Hospital of Nottingham, Nottingham, UK.
Correspondence to: Ian P. Hall, DM, Division of Therapeutics and Molecular Medicine, University Hospital of Nottingham, Nottingham NG7 2UH, UK; e-mail: Ian.Hall@nottingham.ac.uk
http://www.chestjournal.org/cgi/content/full/130/6/1873
And Merck sponsored a study on this which is now completed.
http://clinicaltrials.gov/ct2/show/NCT00116324?intr=%22Montelukast%22&rank=79
Of course, it was sponsored by Merck and paid for by Merck.
I don't know if the study discovered anything but I believe this is an indication that Merck acknowledges genetic differences in populations that may predict the success of montelukast.
I am not any where close to being an expert in this field. I have another background but I believe that there are experts who can tell you exactly why you had side effects from Singulair.
-- By concernedcitizen | Reply | (2) replies | Private Message me
May 20th
2009
12:43 AM
I started reading articles about links between depression and ddp-4, Which Januvia is a ddp-4 inhibitor. after reading this forum and noticing that people experience depression on this drug.
I had depression as one of the side effects on this drug but what I noticed it was not easy to get off the drug. It took me a week of sleepless nights and anxiety and panic attacks which I never had until i took the drug. I am doing better but from what I read it takes a month for Januvia to leave your system.
So my question would be why would a doctor who knows of family background of depression in family history would prescribe this junk. I would think that if you have a predisposition to a disease that it would be taking into account. What this tells me is that our doctors are not doing their homework on the stuff they are giving us and we are having to do tha t for them. What am I paying for then?
What I got from my research was that lower levels of ddp-4 is seen in patients with depression. I found studies by searching on Dipeptidyl peptidase IV and depression.
Copyright © 1999 Elsevier Science Ltd. All rights reserved.
Dipeptidyl peptidase IV and adenosine deaminase activity: Decrease in depression
References and further reading may be available for this article. To view references and further reading you must purchase this article.
Serenay Elgün, , a, Aytaç Keskinegea and Hakan Kumbasarb
a Department of Biochemistry and Clinical Biochemistry, Faculty of Medicine, University of Ankara, 06100 Sihhiye, Ankara, Turkey
b Department of Psychiatry, Consultation–Liaison Unit, Faculty of Medicine, University of Ankara, Dikimevi, Ankara, Turkey
Received 22 December 1998; accepted 15 May 1999. Available online 17 September 1999.
Abstract
-- By labyrinth242 | Reply | Private Message meDipeptidyl peptidase IV (DPPIV) and adenosine deaminase (ADA), two T cell associated enzymes, are known to have a possible interaction and play essential roles in immune system functioning. On the other hand, depression has been shown to be accompanied with some immune-inflammatory alterations. In this regard, in order to make a contribution to the understanding of the ongoing immune disturbances in depression, serum DPPIV and ADA activities were determined in minor and major depressives and compared with healthy controls. Both enzyme activities were found to be decreased in major depressives compared to controls while only DPPIV activity was significantly lower in major depressives than the minor depressives. There were significant inverse relationships between enzyme activities and the severity of depression. Moreover, a positive intracorrelation was found between decreased DPPIV and ADA levels. The correlated decrease in DPPIV and ADA, might be a further support for their possible association. Results also suggest that decreased enzyme activities might reflect the impaired immune state in depression while major depressed patients might have a greater tendency to immune dysfunction than the minor depressed ones.