Instructions

Take the medicine 30 to 60 minutes before a meal.

To relieve dry mouth, chew gum, suck on hard candy/ice chips, drink extra water, or use a saliva substitute.

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.

Drink plenty of water while on this medicine.

To reduce constipation, eat high fiber foods, drink plenty of water and exercise.

Do not take this medicine with antacids.

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 almost time for the next dose, do not take the missed dose. Return to your normal 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.

If you need to stop this medicine, your doctor may wish to gradually reduce the dosage before stopping.

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

Cautions

Though it helps many people, this medicine may sometimes cause addiction, especially if it is used for a long time. This risk for addiction may be higher if you have a substance use disorder - such as overuse of or addiction to drugs or alcohol. Speak with your doctor about the benefits and risks of using this medicine.

If you stop this medicine suddenly, after using it regularly for a long time, you may have withdrawal symptoms. Your doctor may ask you to slowly reduce your dose before stopping it. Tell your doctor right away if you notice any symptoms of withdrawal. Withdrawal symptoms can include headaches, restlessness, hallucinations, confusion, depression, nausea, or seizures.

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

Do not use the medication any more than instructed.

If possible, avoid using with alcohol, marijuana, or other medicines that can cause dizziness or drowsiness. These include allergy/cold products, muscle relaxers, sleep aids, and pain relievers.

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.

Smoking may affect the level of this medicine in your body. Tell your doctor if you smoke, or stop smoking while on this medicine.

Avoid becoming overheated during exercise or other activities. Try to stay cool in hot weather.

This medicine passes into breast milk. Ask your doctor before breastfeeding.

This medicine can hurt a new baby in the womb. If you become pregnant while on this medicine, tell your doctor immediately. Your doctor may switch you to a different medicine.

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.

• blurry vision
• constipation
• dizziness or drowsiness
• nausea and vomiting

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

• shallow, irregular breathing
• depression or feeling sad
• dry skin
• eye pain, redness, or itching
• fainting
• feeling of heat or flushing
• fever
• fast or irregular heart beats
• sensitivity to light
• signs of liver damage (such as yellowing of eye or skin, dark urine, or unusual tiredness)
• mood changes
• muscle aches, spasms or abnormal movements
• problems with sexual functions or desire
• sore throat
• slurred speech
• difficulty or discomfort urinating
• blurring or changes of vision
• seeing halos or colors around lights

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.