Fig. 3. Typical microscopic appearances of commercial betamethasone (Celestone Soluspan®; Schering-Plough, Kenilworth, NJ) and compounded betamethasone (betamethasone repository; New England Compounding Center, Framingham, MA). Both preparations contain 3 mg/ml betamethasone sodium phosphate and 3 mg/ml betamethasone acetate. The particles in Celestone Soluspan® are rod-like and lucent, whereas the particles in the betamethasone repository are opaque and amorphous in appearance.