Instructions

Chew the pill and swallow.

This medicine may be taken with or without 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 possible in the morning. If you don't remember until the afternoon, do not take the missed dose - return to regular schedule next day.

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.

Cautions

This medicine can be habit-forming. If you use this medicine regularly for a long time, it can lead to withdrawal symptoms when you stop. Please use this medicine only as directed.

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

Do not use the medication any more than instructed.

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.

If you drink alcohol regularly, please speak with your doctor.

Call the doctor if there are any signs of confusion or unusual changes in behavior.

Do not breastfeed while on this medicine. This medicine can pass through breast milk to the baby.

During pregnancy, this medicine should be used only when clearly needed. Talk to your doctor about the risks and benefits.

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.

Some patients have serious side effects from this medicine. Ask your pharmacist to show you the information from the Food and Drug Administration (FDA) and discuss it with you.

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.

• agitated feeling or trouble sleeping
• decreased appetite
• constipation
• dizziness
• dry mouth
• headaches
• irritability
• nausea and vomiting
• restlessness
• stomach upset or abdominal pain
• weight loss

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

• chest or jaw pain
• changes in memory, mood, or thinking
• feeling of swelling of the body
• fainting
• cold hands or feet
• hallucinations (unusual thoughts, seeing or hearing things that are not real)
• fast or irregular heart beats
• mood changes
• muscle aches, spasms or abnormal movements
• pale or blue skin, lips or fingernails
• seizures
• problems with sexual functions or desire
• shortness of breath
• symptoms of stroke (such as one-sided weakness, slurred speech, confusion)
• unusual or unexplained tiredness or weakness
• blurring or changes of vision

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.