Ofcourse they are. They are safe to use well past the expiration date IMO. The important thing is how they have been stored. UV light is the worst thing for any medication. If theyve been stored in a cool dark place, they are g2g for sometime.
3 months isn't anything. There is small degradation in some products that are very old over many years, but if somebody brought me a bottle of say the old Syntex Anadrol 2902 tabs from the 80's and early 90's....i'd take them in a heartbeat