this post was submitted on 27 Jan 2024
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Generic meds vs brand meds.
Brands pay a lot for branding, and thus charge more. The formulas are moderated and regulated by the FDA, so unless you enjoy paying for ads, get the generic.
Drugstores here (Denmark) are required by law to ask if you'd like to buy the cheaper alternative to brand medicines. They will often change from week to week so a typical order at the drug store would be "I need this" - "I'll grab it for you but are you OK with cheapest alternative?"
Caveat: you aren't super sensitive to extra/less medicine. The tolerances for generic are much wider.
Technically no. The tolerances should be more or less the same (generally 90%-110% label claim for the active ingredient) . Manufacturers aim for 100% and generally hit that target (or get very close to it).
The bioavailability could be different though - if you are doing a bioequivalence trial for generic VS brand, the generic would have to be between 80% - 120%. This difference is generally a result of the starches, fillers, and other stuff that may be in a generic formulation.
Same net effect as your comment (wider tolerances), but there is a bit more nuance.
Extra info is great. Thanks for adding to the discussion!
Unfortunately, generics can vary wildly in efficacy & quality. As @Aradina pointed out, sometimes the encapsulation is different (e.g. extended release coating vs. standard release), but also the form of the drug can differ (e.g. capsule, tablet, softgel, chewable, etc), chemical by-products from different manufacturing techniques may be present in different amounts, and different manufacturing processes can also yield different chiral enantiomer ratios in the end product.
The "same" drug from different manufacturers may vary in effectiveness / side-effects, and brand-name drugs aren't always the best formulations for most patients.
Generics are required to be as efficacious as name brand in the US.
I do not understand your point on encapsulation and the form of the drug. Name brands can have different encapsulations and forms within their own line. That has nothing to do with it being name brand vs. generic.
Let me introduce you to the way the FDA actually works.
Was confused by their post too. Not to mention, generics typically say that they're trying to replicate xyz extended release or xyz extra strength.
This isn't always true. The content has to be the same, but the delivery mechanism can be different in generics as long as testing shows similar results
Generic concerta for example, often sucks
I've got a family member with a rare allergy. I've found that sometimes one or the other will have the allergen in it, but it's not consistent between generic/branded. Always check the ingredients and never assume it's exactly the same just because they have the same active ingredients
So you're saying that your advice doesn't apply to 99.9999999% of people? Got it, thanks
Someone elaborating on your advice is not an attack on you.
Allergies are not an uncommon thing