Directions for Reconstitution for Sultamicillin Powder for Oral Suspension: Ingest only after preparation of a suspension. The bottle with the powder for oral suspension should be filled with water up to the marking line. It should then be shaken until the content is uniformly mixed; then subsequently fill again with water up to the same marking line and shake again. The suspension now can be used for 14 days if stored in the refrigerator. Shake before each use.