... and the tablets were from a different manufacturer. I am wondering if that could be why an argument that happened at home with my father in law has my anxiety so high that I can’t get it back to my normal. I have been taking the different manufacturer for two weeks but today the pharmacy switched it back for me. Could that be the problem?
Hi, teacher! It's possible. Although the FDA requires the amount of venlafaxine to be the same in all generics (and the same as the brand name) the inert ingredients may differ significantly and this could affect absorption.
Also, it takes at least 4-6 weeks to feel the full benefits of the medication and at least 6-8 weeks to reach full therapeutic levels in your blood and brain. It's not unusual to have breakthrough anxiety in the early days of therapy.
Best regards, Wildcat
I'm not sure if a different manufacturer of anxiety medication would cause problems but I do know that it does happen with blood pressure medication. My insurance provider (mail order) is constantly seeking cheaper manufacturers for my blood pressure pills ... I never know what they are going to send me! Many times my blood pressure has spiked or I have had allergic reactions to medications that are by a different manufacturer and on researching the ingredients, I have found they are different from my regular pills. Even the color of some are different which affects me. Hope this helps!
- Venlafaxine Information for Consumers
- Venlafaxine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Venlafaxine (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Posted 8 Feb 2010 • 6 answers
Posted 24 Feb 2011 • 7 answers
Posted 14 Oct 2011 • 4 answers
Posted 2 Sep 2015 • 6 answers
Posted 22 Jul 2017 • 2 answers