Esketamine Hydrochloride and Kalexate Powder

• Generic Name: esketamine
• Dosage Forms: n.a.
• Other Brand Names: Spravato

Used intranasally for treatment (in combination with an oral antidepressant) of treatment-resistant depression. Although there are various definitions of treatment-resistant depression, the condition is often defined as the failure of ≥2 trials of first-line antidepressants given in an adequate dosage for an adequate duration of therapy.

Intranasal esketamine substantially improved depressive symptoms as measured by the Montgomery-Asberg Depression Rating Scale (MADRS) within 24 hours of administration in a short-term clinical trial and prolonged time to relapse in a longer-term maintenance trial.

Esketamine is the S-enantiomer of racemic ketamine, which is an anesthetic agent. However, esketamine is not labeled for use as an anesthetic agent; efficacy and safety not established.

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

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

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

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

Kalexate may also be used for purposes not listed in this medication guide.