Instructions

This medicine is given as an IV injection into a vein.

This medicine is given by pushing the entire dose of the medicine into the IV line at one time.

Read and make sure you understand the instructions for measuring your dose and using the syringe before using this medicine.

Do not dilute the medicine.

If using the vial, do not remove the medicine from the vial until ready to use.

The liquid should be clear and colorless.

Check the medicine before each use. If the liquid medicine has any particles in it, appears discolored, or if the vial appears damaged, do not use it.

Keep medicine at room temperature. Protect from light.

Keep the medicine in its original container.

Never use any medicine that has expired.

Discard any remaining medicine after your dose is given.

This medicine should only be used by a person who has been trained to recognize when and how it should be used.

Wash your hands before and after handling this medicine.

You or a family member can be trained to give this medicine at home.

It is important that you keep taking each dose of this medicine on time even if you are feeling well.

If you miss a dose, contact your doctor for instructions.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

Keep all appointments for medical exams and tests while on this medicine.

Do not take the medicine more than three times during 24 hours.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

Some patients taking this medicine have experienced serious side effects. Please speak with your doctor to understand the risks and benefits associated with this medicine.

This medicine may cause dizziness or fainting. Do not stand or sit up quickly.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

Please check with your doctor before drinking alcohol while on this medicine.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Do not take this medicine with other medicines called PDE5 inhibitors (Viagra, Levitra, Cialis). Your doctor will let you know if it is safe for you to do so.

If you have had a heart attack or a stroke within the past 6 months, talk to your doctor before using this medicine.

Call your doctor right away if you get chest pain, trouble seeing, hearing problems, ringing in the ears, memory loss, or severe dizziness.

If you have a painful erection or an erection for more than 4 hours, seek medical care right away.

Do not share this medicine with anyone who has not been prescribed this medicine.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

• blurry vision
• dizziness or lightheadedness
• swelling of the legs, feet, and hands
• nosebleeds
• feeling of heat or flushing
• headaches
• low blood pressure
• stomach upset or abdominal pain
• vision problems - changes in seeing color

Call your doctor or get medical help right away if you notice any of these more serious side effects:

• ear problems (ringing in the ears, hearing loss)
• fainting
• hearing loss
• shortness of breath
• sudden change or loss of vision
• worsening breathing symptoms

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.