Neo-Synephrine (injection)

Neo-Synephrine is used to increase blood pressure in adults who have serious low blood pressure due to septic shock or due to anesthesia during a surgery or procedure.

Neo-Synephrine may also be used for reasons not mentioned in this medication guide.

Use only as directed. Inform your doctor if you are taking other medicines, have other medical conditions, or have allergies.

You should not use Neo-Synephrine if you are allergic to it.

Tell your doctor if you have or have ever had:

• heart problems including chest pain or coronary artery disease (clogged arteries);
• pulmonary arterial hypertension;
• blood circulation problems;
• a history of a condition called autonomic dysfunction (which can happen with spinal cord injury);
• asthma or sulfite allergy;
• if you take a medicine that causes contractions of the uterus in a woman;
• fluid in the lungs; or
• liver or kidney disease.

It is not known if Neo-Synephrine will harm an unborn baby. Tell your doctor if you are pregnant or planning to become pregnant.

Ask a doctor if it is safe to breastfeed while using Neo-Synephrine.

In an emergency, you may not be able to inform your medical caregivers about your medical conditions or if you are pregnant or breastfeeding. Make sure any follow-up doctor knows you received this medicine.

Get emergency medical help if you have signs of an allergic reaction: hives, trouble breathing, swelling of your face, lips, tongue, or throat.

Tell your medical caregivers right away if you have:

• pale skin, severe shortness of breath, wheezing, cough with foamy mucus;
• fast, slow, or uneven heart rate;
• severe headache, blurred vision, pounding in your neck or ears;
• chest pain or pressure, pain spreading to your jaw or shoulder, nausea;
• pain, burning, irritation, or skin changes where the injection was given;
• numbness, tingling, burning pain in your hands or feet;
• dizziness;
• tremors;
• sweating or flushing (sudden warmth, redness, or tingly feeling); or
• kidney problems--swelling, urinating less, feeling tired or short of breath.

Common side effects of Neo-Synephrine may include:

• headache;
• feeling nervous or excited; or
• nausea or vomiting.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Neo-Synephrine is injected into a vein by a healthcare provider.

You will need frequent medical tests. Your heart rate and blood pressure will be constantly monitored and your kidney function may need to be checked often.

Tell your medical caregivers if you feel any burning or pain when Neo-Synephrine is injected.

In an emergency medical setting, you are unlikely to miss a dose.

In a medical setting, an overdose will be treated promptly.

Follow your doctor's guidance regarding any limits on food, drinks, or activities.

Many drugs can interact with Neo-Synephrine. This includes both prescription and over-the-counter medicines, vitamins, and herbal products. Not every possible interaction is included here. Inform your doctor about all other medicines you are using.