Terbutaline is used to treat wheezing and shortness of breath from lung problems (such as asthma, chronic obstructive pulmonary disease, bronchitis and emphysema). Controlling these symptoms can decrease time lost from work or school. Terbutaline belongs to a class of drugs known as bronchodilators. It works by relaxing the muscles around the airways so that they open up and you can breathe more easily.

Take this medication by mouth with or without food as directed by your doctor, usually 3 times daily. The dosage is based on your medical condition and response to treatment.

Take this medication exactly as prescribed. Do not take more of this medication or take it more often than recommended by your doctor. If you have been directed to use this medication on a daily schedule, use it regularly at the same times each day in order to get the most benefit from it.

If you take other asthma drugs by mouth or inhaling devices, ask your doctor about how to correctly take this medication with your other asthma medicines.

If you notice less effect than usual from this medication, if your symptoms get worse, or if you feel you need to take any of your asthma medications more often than recommended, get medical help right away.

Nervousness, shaking (tremor), dizziness, drowsiness or headache may occur. If any of these effects last or get worse, notify your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results are high.

Tell your doctor right away if you have any serious side effects, including:

• fast/pounding/irregular heartbeat
• chest pain
• muscle cramps
• weakness
• seizures

Rarely, this medication has caused severe (rarely fatal), sudden worsening of breathing problems/asthma (paradoxical bronchospasm). If you experience sudden wheezing, get medical help right away.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:

• rash
• itching/swelling (especially of the face/tongue/throat)
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. See Warning Section.

In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before taking terbutaline, tell your doctor or pharmacist if you are allergic to it; or to similar bronchodilators (such as albuterol, metaproterenol, salmeterol); or to sympathomimetic drugs (such as epinephrine, pseudoephedrine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

• heart disease (such as irregular heartbeat, ischemic heart disease)
• high blood pressure
• seizures
• overactive thyroid (hyperthyroidism)
• diabetes
• low blood potassium level (hypokalemia)

This drug may make you dizzy or drowsy. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Older adults may be more sensitive to the side effects of this drug, especially the effects on the heart.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. See Warning Section.

Terbutaline passes into breast milk. Consult your doctor before breastfeeding.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669. Symptoms of overdose may include: unusual dizziness, dry mouth, severe headache, seizures, very fast heartbeat, severe nausea.

Do not share this medication with others.

Lab and/or medical tests may be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details.

Avoid allergens, irritants, smoking and other factors that make asthma worse.

Learn to use a peak flow meter, use it daily, and promptly report worsening asthma (such as readings in the yellow/red range or increased use of quick-relief inhalers).

Have your blood pressure and pulse checked regularly while taking this medication. It may be best to learn how to monitor your own blood pressure and pulse. Discuss this with your doctor.

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-888-633-4298 (US) or 1-800-668-1507 (Canada).