Perflutren lipid microsphere Intravenous and Sodium Polystyrene Sulfonate Oral Powder

• Generic Name: perflutren
• Dosage Forms: n.a.
• Other Brand Names: Definity, Optison

Perflutren lipid microsphere preparation is an ultrasound contrast agent. Ultrasound contrast agents are used to help provide a clear picture during ultrasound. Ultrasound is a special kind of diagnostic procedure. It uses high-frequency sound waves to create images or “pictures” of certain areas inside the body. The sound waves produced by the ultrasound equipment can be reflected (bounced off) by different parts of the body, like for example, the heart. As the sound waves return they are electronically converted into images on a television screen. Unlike x-rays, ultrasound does not involve ionizing radiation.

The perflutren lipid microspheres preparation contains very small gas-filled lipid microspheres that reflect the sound waves and help create a better picture. The lipid microsphere preparation is given by injection into a vein before ultrasound to help diagnose problems of the heart.

Perflutren lipid microsphere is to be given only by or under the direct supervision of a doctor with specialized training in ultrasound procedures.

• Generic Name: sodium polystyrene sulfonate
• Dosage Forms: powder, for suspension
• Other Brand Names: Kalexate, Kayexalate, Kionex

Sodium polystyrene sulfonate binds itself to potassium in your digestive tract. This helps prevent your body from absorbing too much potassium.

Sodium polystyrene sulfonate is used to treat high levels of potassium in the blood, also called hyperkalemia.

Sodium polystyrene sulfonate works differently from other medicines because it passes into your intestines without being absorbed into your blood stream.

Sodium polystyrene sulfonate may also be used for purposes not listed in this medication guide.