Vasostrict

(Vasopressin)

The active ingredient in Vasostrict is vasopressin. Its mechanism of action involves stimulating V1 receptors on vascular smooth muscle, causing vasoconstriction and an increase in systemic blood pressure. It also acts on V2 receptors in the kidneys, promoting water reabsorption in the renal collecting ducts, which helps increase circulating blood volume. Together, these effects improve blood pressure and organ perfusion, particularly in conditions such as vasodilatory shock.

Follow all directions provided by your doctor and read all documents carefully, including the full Prescribing Information, FDA-approved Product Labeling, Instructions for Use, and Medication Guide, before using Vasostrict. However, the following is a synopsis of the general guidelines for the use of Vasostrict:

• Vasostrict is given by injection into a vein.
• It is administered by a healthcare professional in a hospital or clinical setting.
• Dosing depends on the condition being treated, such as septic shock or diabetes insipidus.
• Blood pressure, heart rate, urine output, and electrolyte levels are closely monitored.
• Vasostrict may be given as a continuous infusion or adjusted based on response.
• Do not stop treatment suddenly unless directed by a healthcare provider.

Some mild or common side effects of Vasostrict include:

• Headache.
• Abdominal cramps.
• Nausea.
• Pale or cool skin.
• Temporary changes in heart rate.

Some individuals may experience serious side effects while using Vasostrict. These side effects may require immediate medical attention. If you experience any of the following, contact your healthcare provider or seek emergency medical help:

• Chest pain or signs of reduced cardiac output.
• Severe bradycardia or irregular heartbeat.
• Hyponatremia, including confusion or seizures.
• Shortness of breath.
• Reduced blood flow to the extremities.
• Severe abdominal pain or signs of intestinal ischemia.

These are not all of the possible side effects of Vasostrict. You should always seek medical advice from your healthcare provider for any questions or concerns about your medical condition or treatment. Read all patient information, medication guides, or drug information sheets that come with this medication. You can also report adverse effects to the Food and Drug Administration at www.fda.gov/medwatch or 1-800-FDA-1088.

Before starting Vasostrict, it is crucial to discuss any existing health conditions with your healthcare provider. You should be sure that your healthcare provider is aware of all your medical conditions, including:

• Heart disease or reduced cardiac function.
• Coronary artery disease.
• Hyponatremia or fluid imbalance.
• Kidney disease.
• Asthma or breathing problems.
• A history of blood vessel disorders.
• You should not be treated with Vasostrict if you are allergic to it or chlorobutanol.
• Vasostrict can affect systemic vascular resistance, mean arterial blood pressure, and cardiac index, so careful monitoring is required.

Vasostrict should not be used in patients who:

• Allergic to vasopressin or any preservatives in the formulation.
• Have chronic kidney disease with fluid overload that cannot be monitored safely.
• Allergy or adverse reactions to 8-L-arginine vasopressin or chlorobutanol.

Vasostrict begins working shortly after intravenous administration. Effects on blood pressure and urine output may be seen within minutes, depending on the dose and condition being treated.

When Vasostrict is taken with other prescription drugs, over-the-counter medications, vitamins, and supplements, it may change how they work or increase the frequency or severity of side effects. Make sure that you tell your healthcare professional about anything that you are taking to avoid any negative drug interactions, including:

• Catecholamines such as norepinephrine or epinephrine may enhance the pressor effect.
• Ganglionic blocking agents, which may alter blood pressure response.
• Indomethacin may increase antidiuretic effects.
• Demeclocycline or desmopressin may affect water balance.

There is only one dosage form for Vasostrict, and it is supplied as a vasopressin injection in single-dose vials or multiple-dose vials. Dosing is individualized based on clinical response and target blood pressure.

Storage conditions depend on the specific vial supplied. Follow instructions in the full prescribing information. Some formulations require refrigeration, while others may be stored at room temperature.

Vasostrict is manufactured by Par Pharmaceutical and other FDA-approved manufacturers.

Yes. The generic drug name vasopressin injection is available.

Vasostrict should only be stopped under medical supervision. Your healthcare provider will taper or discontinue therapy based on your condition and response.

Talk to your doctor if you are already pregnant or if you have any plans to become pregnant. They will know or recommend what is best for you based on your medical condition.

Talk to your doctor if you are already breastfeeding or if you have any plans to breastfeed. They will know or recommend what is best for you.