Generics are not as safe as brand-name drugs.
Generics use the same ingredients, work the same in the body, and have the same risk-benefit profile.
Generics are not as potent as brand-name drugs.
Generic drugs have the same quality, strength, purity and stability.
Generics take longer to act in the body.
The generic drug delivers the same amount of active ingredient in the same time as the original drug.
Brand-name drugs are made in modern manufacturing facilities, and generics are often made in sub-standard facilities.
Sub-standard facilities are not permitted by the FDA.