Methylnaltrexone Subcutaneous and S2 Inhalant

• Generic Name: methylnaltrexone
• Dosage Forms: n.a.
• Other Brand Names: Relistor

Methylnaltrexone injection is used to treat constipation caused by opioids (narcotic pain medicines), in adults with long-lasting pain that is not caused by cancer, or in patients with long-lasting pain caused by a previous cancer or its treatment who do not need weekly increases in opioid dosage. It is also used to treat constipation caused by opioids in adults with an advanced illness or cancer who need an increase in their opioid dosage.

Methylnaltrexone is available only with your doctor's prescription.

• Generic Name: racepinephrine
• Dosage Forms: n.a.
• Other Brand Names: Asthmanefrin, S2 Inhalant, Nephron, Micronefrin

S2 Inhalant is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.

S2 Inhalant is used to relieve occasional symptoms of asthma, such as wheezing, chest tightness, and feeling short of breath.

S2 Inhalant may also be used for purposes not listed in this medication guide.