Opioids Codeine Phosphate , Blister pack damaged, still good?

[Darksidesam]

Hey im dying of pain over here (another wisdom out ye good times)
'aquired' some codeine phosphate tablets there are 2 or 3 that are sealed but the rest of the blister packet / open in spots and is somewhat damaged so they would have been exposed to air

I dont think they would have been replaced i trust the source enough they wouldnt do anything sinister just poor storage conditions
If they are weaker, they are weaker im taking them in conjunction with solpadeine max

Are they still safe or what

 

[Las Veghost grower]

Doubt any potency loss