Fosteum is available by prescription only. Any medical doctor (M.D. or D.O.) in the U.S. can prescribe Fosteum. If your doctor is not yet familiar with Fosteum, please refer him/her to this website or have your doctor call us directly to receive physician information. Fosteum prescriptions can be filled in all pharmacies. It is not sold over-the-counter or over the internet. If your pharmacy does not have Fosteum, your pharmacist can generally order it from their wholesaler for overnight delivery.