Does Tetracycline treat strep throat

Yes, tetracycline has been shown to be effective as a broad spectrum antibiotic that works well against many strains of strep. However, tetracycline is pretty old and has some side effects that are not super-dangerous for most, but are still problematic. It can discolor teeth with children. You can't go out in the sun whiile taking the course. And, as with older antibiotics, there are resistant strains that it won't help. It's not a bad choice against strep (in general) -- but a choice I don't see much nowadays in America, the UK or Europe, except in dermatologicla applications. Note: Can't use this when pregnant or breast feeding.