I have had an old prescription of robaxin and I need to know if I can still take them? They expired?

Any health care provider worth his or her salt will tell you absolutely not.

Drugs have a limited shelf-life for a reason - they start to break down.

Kept in the right conditions (usually listed on the bottle, no light, right temp, etc.) they will keep until the expiration date - or at least they're guaranteed to last that long.

However, if you do not keep them in those conditions, the moment you expose them to heat, light, extreme cold, damp air (most people keep meds in the bathroom and then wonder why they don't work) that expiration date moves up exponentially. Like years sooner. It might already have ruined the entire stash.

However, it is 100% certain that once the pills have passed the expiration date, they are no longer viable to be the drug that's on the label. Might they still work? Maybe. But they'll also have contaminants on them, they might have broken down into toxic substances beyond a level your body can handle, or they might just be completely inert. It's much better to give your doc a call and just have them write you a new script.