Sunday, May 27, 2012

Did You Know Generic Migraine Medications Can Vary?

By Teri Robert, Health Guide Friday, August 21, 2009
Earlier this month, I posted the article, Topamax or Topiramate for Migraine - A Difference? That article discusses problems some people are having with generic topiramate versus the brand name Topamax. In writing that article, I talked with our very own Dr. John Claude Krusz, and I learned more a...
New Migraine Drug Levadex Performs Well in Trial
8/21/09 5:56pm

It's really important that this knowledge is spread far and wide!! It can make SUCH a difference when you're taking generics!

8/22/09 2:32am

I really thanked Teri yesterday for the earlier posting.  My pharmacy had switched my sleep medication on me.  I let them know that I was aware of issues with the Topamax generics so she placed a note in my file for them to try to remain the same.  So, today when I desperately needed to fall asleep in a timely manner needed to adjust my medication and take a little more.  Fortunately, we have planned for that need.  Unfortunately I did not get quite the 7-8 hours I needed, closer to 5-6.  It's really tough working 3rd shift.

8/22/09 5:22am

Thank you for sharing this information.  It is very interesting and helps to know in case we start feeling differently.  I just picked up my second generic topiramate prescription. The tablets are different in this prescription than the first so I'm sure it is from two different suppliers. 

 

If the bioavailability rates can vary this significantly, do you know if the half life can fluctuate from one generic to another as well?

8/22/09 5:25am

It was very comforting to read this in one way.  Now, I don't feel like it is all in my head!  I have taken several meds where they have later changed the mfg, and I tried to tell them they were not the same, but the didn't believe me.  I think this is a very big problem and they are aware of it.  It just isn't talked about.

8/22/09 1:40pm

Where are the comments?

8/24/09 9:56pm

Hi Teri:

 

It is interesting to note the statistical "ranges" that generic drugs can vary, legally.  It is astounding.  Now I understand why my endocrinologist insists that I take a BRAND name version of levothyroxine. 

 

And I have found that with a generic version of Depakote ER, I have needed to add one tablet per week (minimum) to get the same results as I did with the branded version.  Otherwise, I start seeing colored halos around everything, have more visual aura patterns with my migraines, and my left-leg neuropathy returns after a few days. I also "return" to having potent after-images (like I used to have before taking Depakote) if I don't take the extra generic tablet.   I am assuming that if I stay with this particular generic brand, I can expect consistent results from this particular manufacturer.  At least, that is what I hope!  Thanks again.

Ask a Question

Get answers from our experts and community members.

Btn_ask_question_med
View all questions (4349) >
By Teri Robert, Health Guide— Last Modified: 09/04/10, First Published: 08/21/09