Phenazopyridine Hydrochloride and Provayblue injection

• Generic Name: phenazopyridine
• Dosage Forms: n.a.
• Other Brand Names: AZO Urinary Pain Relief, Azo-Gesic, Azo-Standard, Baridium, Prodium, Pyridium, Re-Azo, Uricalm, Viridium, Eridium, Pyridiate, Urogesic, Phenazo, Urodol, Urinary Analgesic, Uristat, AZO Urinary Pain Relief Max Strength

Symptomatic relief of pain, burning, urgency, frequency, and other discomforts resulting from irritation of the lower urinary tract mucosa caused by infection, trauma, surgery, endoscopic procedures, or the passage of sounds or catheters.

Use should not delay definitive diagnosis and treatment of cause; not a substitute for specific surgery or anti-infective therapy.

Used in combination with appropriate anti-infective agents for initial treatment (first 2 days) of uncomplicated urinary tract infections when pain, burning, or urgency relief is needed. However, there is lack of evidence that such combinations provide greater benefit than an anti-infective agent alone after 2 days; continue treatment after 2 days with anti-infective agent alone.

Also may be used for self-medication for the symptomatic relief of minor pain, urgency, frequency, and burning on urination.

• Generic Name: methylene blue
• Dosage Forms: injection
• Other Brand Names: ProvayBlue, Urolene Blue

Methemoglobin is a form of hemoglobin (HEEM o glo bin). Hemoglobin is a substance in blood that carries oxygen and distributes it to your tissues and organs. However, methemoglobin is not a type of hemoglobin that is useful in carrying oxygen.

Methemoglobin normally exists in small amounts in the blood. However, when methemoglobin levels increase, the blood is less efficient in circulating oxygen. The resulting lack of oxygen throughout the body can cause symptoms such as pale or blue-colored skin.

Methemoglobinemia is a condition in which methemoglobin is present in high levels in the blood. Methemoglobinemia can occur when a person is exposed to certain drugs or chemicals such as nitrites.

Provayblue is used to treat methemoglobinemia. Provayblue works by converting methemoglobin to a more efficient type of hemoglobin to better carry oxygen throughout the body.

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