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Proglycem Side Effects

Generic name: diazoxide

Medically reviewed by Last updated on Apr 30, 2021.

Note: This document contains side effect information about diazoxide. Some of the dosage forms listed on this page may not apply to the brand name Proglycem.

For the Consumer

Applies to diazoxide: oral suspension

Side effects requiring immediate medical attention

Along with its needed effects, diazoxide (the active ingredient contained in Proglycem) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking diazoxide:


  • Chest pain

Incidence not known

  • Abdominal or stomach pain
  • black, tarry stools
  • blood in the urine
  • bloody nose
  • blurred vision
  • confusion
  • dizziness
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • dry mouth
  • extreme thirst
  • fast, irregular, pounding, or racing heartbeat or pulse
  • fever
  • flushed, dry skin
  • fruit-like breath odor
  • heavier menstrual periods
  • increased hunger
  • increased thirst
  • increased urination
  • loss of consciousness
  • nausea
  • pinpoint red spots on the skin
  • seizures
  • skin rash
  • stomachache
  • sweating
  • troubled breathing
  • unexplained weight loss
  • unusual bleeding or bruising
  • unusual tiredness or weakness
  • urinating large amounts or urinating very little
  • vomiting
  • weakness

Side effects not requiring immediate medical attention

Some side effects of diazoxide may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  • Increased hair growth, especially on the forehead, back, arms, and legs

Incidence not known

For Healthcare Professionals

Applies to diazoxide: compounding powder, injectable solution, oral capsule, oral suspension


Angina with myocardial and cerebral infarction have been associated with the use of a 300 mg intravenous dose of diazoxide (the active ingredient contained in Proglycem)

One case of optic nerve infarction was reported following a single 300 mg bolus dose of diazoxide, as a result of a sudden reduction in diastolic pressure.

Results from one prospective trial conducted in patients with severe hypertension and coronary artery disease showed a 50% incidence of ischemic changes in the electrocardiogram following single 300 mg bolus injections of diazoxide.[Ref]

Common (1% to 10%): Tachycardia, palpitations

Frequency not reported: Hypotension, transient hypertension, chest pain[Ref]

Nervous system

Frequency not reported: Transient loss of taste, headache, dizziness, polyneuritis, paresthesia, extrapyramidal signs[Ref]


Frequency not reported: Nausea, vomiting, abdominal pain, ileus, diarrhea[Ref]


Sodium and fluid retention may precipitate congestive heart failure in patients with compromised cardiac reserve.[Ref]

Common (1% to 10%): Increased levels of serum uric acid

Frequency not reported: Sodium retention, fluid retention, diabetic ketoacidosis, hyperosmolar nonketotic coma, hyperglycemia, glycosuria, anorexia[Ref]


Frequency not reported: Pulmonary hypertension[Ref]


Frequency not reported: Weakness, malaise, fever[Ref]


Frequency not reported: Thrombocytopenia with or without purpura, neutropenia, eosinophilia, decreased hemoglobin/hematocrit, excessive bleeding, azotemia, lymphadenopathy[Ref]


Frequency not reported: Decreased IgG, monilial dermatitis, herpes[Ref]


Frequency not reported: Advance in bone age[Ref]


Frequency not reported: Transient cataracts, subconjunctival hemorrhage, ring scotoma, blurred vision, diplopia, lacrimation[Ref]


Frequency not reported: Anxiety, insomnia[Ref]


Frequency not reported: Decreased urinary output, hematuria, albuminuria, galactorrhea, enlargement of lump in breast[Ref]


Frequency not reported: Increased AST, increased alkaline phosphatase[Ref]


Frequency not reported: Decreased creatinine clearance, reversible nephrotic syndrome[Ref]


Frequency not reported: Hirsutism of lanugo type (mainly on the forehead, back, and limbs), skin rash, pruritus, loss of scalp hair[Ref]


Frequency not reported: Gout, acute pancreatitis/pancreatic necrosis[Ref]

Frequently asked questions


1. "Product Information. Proglycem (diazoxide)." Teva Pharmaceuticals USA, North Wales, PA.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.