Precautions

Drug information provided by: IBM Micromedex

It is very important that your doctor check your progress at regular visits. This will allow your doctor to make sure that this medicine is working properly and to check you for any problems or unwanted effects that may be caused by this medicine.

Do not use Lazanda® if you need pain medicine for just a short time, such as during a headache or migraine attack, tooth pain, or when recovering from surgery or an injury.

After you have been using this medicine for awhile, "breakthrough" pain may occur more often than usual, and it may not be relieved by your regular dose of medicine. If this occurs, do not increase the amount of nasal fentanyl or other narcotic that you are using without first checking with your doctor.

Using too much nasal fentanyl, or taking too much of another narcotic while using nasal fentanyl, may cause an overdose. If this occurs, get emergency help right away. An overdose can cause severe breathing problems (breathing may even stop), unconsciousness, and death. Serious signs of an overdose include very slow breathing (fewer than 8 breaths a minute) and drowsiness that is so severe that you are not able to answer when spoken to or, if asleep, cannot be awakened. Other signs of an overdose may include cold, clammy skin, low blood pressure, pinpoint pupils of the eyes, and slow heartbeat. It may be best to have a family member or a friend check on you several times a day when you start using a narcotic regularly, and whenever your dose is increased, so that he or she can get help for you if you cannot do so yourself.

Lazanda® contains an amount of fentanyl which can be fatal to a child. Patients and their caregivers should keep this medicine out of the reach of children, and discard used and unused bottle sprays in its child-resistant container properly.

This medicine will add to the effects of alcohol and other central nervous system (CNS) depressants. This effect may last for a few days after you stop using this medicine. CNS depressants are medicines that slow down the nervous system, which may cause drowsiness or make you less alert. Some examples of CNS depressants are antihistamines or medicine for hay fever, allergies, or colds, sedatives, tranquilizers, benzodiazepines, sleeping medicines, other prescription pain medicine or narcotics, barbiturates or seizure medicine, muscle relaxants, or anesthetics (numbing medicines), including some dental anesthetics. Check with your doctor before taking any of the other medicines listed above while you are using this medicine.

Fentanyl may cause some people to become drowsy, dizzy, or lightheaded, or to feel a false sense of well-being. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert and clearheaded. These effects usually go away after a few days of treatment, when your body gets used to the medicine. However, check with your doctor if drowsiness that is severe enough to interfere with your activities continues for more than a few days.

This medicine may cause serious allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth while you are using this medicine.

This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.

Using narcotics for a long time may cause severe constipation. To prevent this, your doctor may tell you to take laxatives, drink a lot of fluids, or increase the amount of fiber in your diet. Be sure to follow the directions carefully, because continuing constipation can lead to more serious problems.

Do not use this medicine if you have taken a monoamine oxidase (MAOI) inhibitor in the previous 2 weeks. Some examples of MAO inhibitors are isocarboxazid (Marplan®), phenelzine (Nardil®), selegiline (Eldepryl®), or tranylcypromine (Parnate®). If you use the 2 medicines close together it may cause serious side effects like confusion, agitation, restlessness, stomach or intestinal symptoms, a sudden high temperature, an extremely high blood pressure, or severe convulsions.

Using this medicine while you are pregnant may cause serious unwanted effects in your newborn baby. Tell your doctor right away if you think you are pregnant or if you plan to become pregnant while using this medicine.

Using too much of this medicine may cause reduced infertility (unable to have children). Talk with your doctor before using this medicine if you plan to have children.

Do not eat grapefruit or drink grapefruit juice while you are using this medicine. Grapefruit and grapefruit juice may change the amount of this medicine that is absorbed in the body.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.