Instructions

Keep the medicine in its original container.

Take the medicine with food.

This medicine will work best if you take it at about the same time every day.

Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.

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

If you forget to take a dose on time, take it as soon as you remember. If it is less than 12 hours to the next dose, do not take the dose. Return to your normal dosing schedule. Do not take 2 doses at one time.

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.

This medicine may decrease the effectiveness of some birth controls which use hormones (such as birth control pills and patches). Use an extra form of birth control, such as condoms, while on this medicine.

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

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.

Do not use the medication any more than instructed.

Use condoms to reduce the risk of sexually transmitted diseases.

Contact your doctor if you develop any signs of a new infection such as fever, cough, sore throat, or chills.

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

It is unknown if this medicine passes into breast milk. Because breast milk may transmit HIV, ask your doctor before 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.

Do not take St. John's wort while on this medicine.

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

Always refill this medicine before it runs out.

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.

• nausea

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

• numbness or tingling in hands and feet
• severe or persistent headache
• fast or irregular heart beats
• irritability
• signs of liver damage (such as yellowing of eye or skin, dark urine, or unusual tiredness)
• loss of movement anywhere on the body
• muscle trembling
• joint or muscle pain
• unusual growth or lump on the neck
• nervousness
• shortness of breath
• difficulty speaking
• difficulty swallowing
• blurring or changes of vision
• weight loss

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.