Intravenous route is the most efficient, but also one of the most dangerous.

Intravenous corticosteroids, usually hydrocortisone or dexamethasone, are not recommended for routine use but may be useful if there is a risk of airway obstruction, severe thrombocytopenia, or hemolytic anemia.

Intravenous fentanyl is extensively used for anesthesia and analgesia, most often in operating rooms and intensive care units.

Intravenous sodium bicarbonate is an aqueous solution that is sometimes used for cases of acidosis, or when there are insufficient sodium or bicarbonate ions in the blood.

Intravenous therapy or IV therapy is the infusion of liquid substances directly into a vein.

Intravenous Gamma globulin was FDA-approved in 2004 to reduce antibodies in a patient with kidney failure to allow that person to accept a kidney from a donor with a different blood type ( ABO-incompatible ), or is an unacceptable tissue match.

Intravenous administration is commonly associated with thrombophlebitis.

Intravenous therapy is utilized and the urine output is monitored with a catheter in the bladder.

Intravenous doses should not be self-administered due to the immediate onset of hallucinations and strong physical stimulation before the needle's plunger is fully depressed.

: Intravenous ceftazidime is the current drug of choice for treatment of acute melioidosis.

Intravenous or oral fluorescein is used in fluorescein angiography in research and to diagnose and categorize vascular disorders in e. g. legs, including retinal disease macular degeneration, diabetic retinopathy, inflammatory intraocular conditions, and intraocular tumors, and, increasingly, during surgery for brain tumors.

Intravenous hemin ( as heme arginate or hematin ) is the recommended therapy for acute attacks.

Intravenous Ambisome 4 ( mg / kg )/ day may be used but is not superior: its main use is in patients who do not tolerate Amphotericin B.

Intravenous contrast material is needed to evaluate lesion vascularity.

Intravenous bisphosphonates can give fever and flu-like symptoms after the first infusion, which is thought to occur because of their potential to activate human γδ T cells.

Intravenous quinidine is also indicated for treatment of Plasmodium falciparum malaria.

Intravenous immunoglobulin ( IVIG ) is occasionally used.

Intravenous ribavirin is effective against La Crosse encephalitis virus in the laboratory, and several studies in patients with severe, brain biopsy confirmed, La Crosse encephalitis are ongoing.

Once a diagnosis of JDMS is made, the treatment is often a 3-day course of Intravenous (" pulse ") steroids ( methylprednisolone, Solu-Medrol ), followed by a high dose of oral prednisone ( usually 1 – 2 mg / kg of body weight ) for several weeks.

Intravenous interferon therapy has also been used.

Intravenous immunoglobulin ( IVIG ) may be used with a degree of effectiveness.

Intravenous, inhaled, and oral antibiotics are used to treat chronic and acute infections.

Intravenous therapy may be used to correct electrolyte imbalances, to deliver medications, for blood transfusion or as fluid replacement to correct, for example, dehydration.

Intravenous therapy can also be used for chemotherapy ( The treatment for any kind of cancer.

Intravenous agents often used to alter / suppress platelet function include: abciximab, eptifibatide, tirofiban.

* Intravenous pyelogram, a radiological procedure used to visualize abnormalities of the urinary system, including the kidneys, ureters, and bladder.

Intravenous amoxicillin-clavulanate ( co-amoxiclav ) may be used if none of the above four drugs are available, but it produces inferior outcomes.

Intravenous sodium phenylacetate and sodium benzoate are pharmacologic agents commonly used as adjunctive therapy to treat hyperammonemia in patients with urea cycle enzyme deficiencies.

Intravenous and oral atropine may be used to treat pyloric stenosis.

* Intravenous Immunoglobulins ( IVIg ) are often used with varying results.

Intravenous administration can be used to treat status migrainosus.

Intravenous acetaminophen also appears to be effective.

Intravenous fluids and oxygen may be needed to stabilize the patient.

Intravenous injections should be given slowly and patients closely monitored for side effects, such as respiratory depression, hypotension, or loss of airway control.

Intravenous Amphotericin B combined with oral flucytosine may be effective.

Intravenous fluids and antibiotics should be given immediately.

* Intravenous saline-For very symptomatic patients ( severe confusion, convulsions, or coma ) hypertonic saline ( 2. 7 % or 3 %) 1-2 ml / kg IV in 3-4 h should be given, with consideration to giving Furosemide IV at the start in order to avoid hypervolaemic consequence of hypertonic infusion.

Intravenous magnesium sulfate ( MgSO < sub > 4 </ sub >) can be given in the following conditions:

Intravenous gamma globulin ( IVIG ) may be useful in severe cases, especially paraneoplastic pemphigus.

Remifentanil can be administered as part of an anaesthesia technique called TIVA ( Total Intravenous Anaesthesia ) using computer controlled infusion pumps in a process called target controlled infusion or TCI.

* IVIG ( Intravenous Immunoglobulin ) infusions may be helpful for patients whose POTS is caused by autonomic neuropathy associated with Guillain Barre Syndrome, Chronic Inflammatory Demyelinating Polyneuropathy ( CIDP ), Sjogren's Syndrome or other autoimmune diseases.

Intravenous fluids may be administered to compensate for the reduced oral intake, insensible losses ( due to the raised temperature ) and vasodilation and to optimize urine output.

Intravenous fluids should be warmed and a warm environment maintained.