Is 5 pills of biotin 1000 mcg,the same as taking 1 biotin 5000 mcg?

Yes, but...: Biotin deficiency is rare, but can occur in persons with genetic mutations, on long-term antibiotics or anti-convulsants, or who eat a lot of raw egg whites. There is no good evidence that this over-the-counter supplement is needed, because normal people eating a regular, balanced diet should get enough of it from their foods.

Yes: those are the same dosage.