Vitamins gradually lose potency as they become exposed to sunlight, oxygen and moisture. While they may not become toxic or harmful, expired vitamins may lose their potency.
So,as long as they have been stored properly and you see no change in the general appearance, smell and consistency of the tablets/caplets, I would say that they are likely safe, especially since they have only expired recently. However, if you're worried, head down to your local pharmacy and ask the pharmacist for their opinion.