Why is Singulair prescribed?
Singulair is also used to relieve the stuffy, runny nose and
sneezing caused by allergies, both seasonal (such as that caused by hay
fever) and perennial (constant and recurring allergies).
Most important fact about Singulair
Singulair alleviates the on-going symptoms of asthma, but it won't
stop an acute asthma attack. For that you need a fast-acting, orally
inhaled airway opener such as albuterol.
How should you take Singulair?
Take a Singulair tablet once daily, whether or not you have any symptoms. The tablet can be taken with or without food.
If you have asthma, or asthma plus allergies, take Singulair in the
evening. If you have only allergies, you can take Singulair at any time.
The oral granules should be given directly in the child's mouth. The
granules can also be mixed with a spoonful of one of the following soft
foods: applesauce, carrots, rice, or ice cream. The food should be cold
or at room temperature.
The granules may be dissolved in liquids, such as cold or room
temperature breast milk or baby formula, before giving them to your
child. Do not open the granules packet until your child is ready to
take them. Once the packet is opened, the full dose of medication must
be given within 15 minutes. Throw away any unused portion of the
granules; do not store them for future use.
If you miss a dose...
Take it as soon as you remember. If it is almost time for your next
dose, skip the one you missed and go back to your regular schedule. Do
not take 2 doses at once.
Store at room temperature, away from moisture and light.
What side effects may occur?
Side effects cannot be anticipated. If any develop or change in
intensity, inform your doctor as soon as possible. Only your doctor can
determine if it is safe for you to continue taking Singulair.
Side effects may include:
Abdominal pain, abnormal dreams, allergic reaction, bronchitis,
bruising, cough, dental pain, diarrhea, difficulty breathing or
swallowing, dizziness, drowsiness, ear infection, ear pain, eczema, eye
inflammation, fatigue, fever, flu, hallucinations, headache, hives,
indigestion and other digestive problems, infection, insomnia,
irritability, itching, laryngitis, leg pain, muscle aches and cramps,
nasal congestion, nausea, pancreatitis, pneumonia, rash, restlessness,
runny nose, seizures, sinus pain, skin inflammation, sneezing, sore
throat, swelling due to fluid retention, swelling of the mouth or
throat, upper respiratory infection, tendency to bleed easily, thirst,
viral infection, vomiting
Why should Singulair not be prescribed?
If Singulair gives you an allergic reaction, you cannot continue using the drug.
Special warnings about Singulair
After you begin taking Singulair, your doctor may be able to slowly
reduce the dosage of other asthma medications such as inhaled steroids.
However, Singulair is not a complete replacement for such drugs, so you
should not abruptly stop using them unless your doctor recommends it.
If your asthma symptoms get worse or you develop a rash, numbness, or
heart problems as you reduce your dose of steroids, check with your
doctor. Such reactions usually result from a reduction in oral steroid
If your asthma gets worse after exercise, you'll need to continue
using a short-acting inhaled airway opener to prevent the problem and
If you are allergic to aspirin and other nonsteroidal
anti-inflammatory drugs (NSAIDs), you should continue to avoid them.
Singulair does not remedy this problem.
If you have difficulty breathing while taking Singulair, or find
that you need your orally inhaled bronchodilator more often than usual
(or require more puffs than prescribed), notify your doctor.
If you have a child with phenylketonuria—an inability to process
phenylalanine that quickly leads to mental retardation—you should be
aware that Singulair chewable tablets contains this substance.
Possible food and drug interactions when taking Singulair
If Singulair is taken with certain other drugs, the effects of
either could be increased, decreased, or altered. It is especially
important to check with your doctor before combining Singulair with
phenobarbital or rifampin.
Special information if you are pregnant or breastfeeding
Singulair should be used during pregnancy only if clearly needed. If
you are pregnant or plan to become pregnant, inform your doctor
It is not known whether Singulair appears in breast milk. Because
many drugs do make their way into breast milk, use Singulair with
caution if you are breastfeeding.
Recommended dosage for Singulair
ADULTS AND CHILDREN 15 AND OVER
The usual dose is one 10-milligram tablet once a day in the evening.
The usual dose is one 10-milligram tablet once a day taken at any time.
CHILDREN 6 TO 14 YEARS OLD
The usual dose is one 5-milligram chewable tablet once a day in the evening.
The usual dose is one 5-milligram chewable tablet once a day taken at any time.
CHILDREN 2 TO 5 YEARS OLD
The dosage is one 4-milligram chewable tablet or one packet of 4-milligram oral granules per day, taken in the evening.
The dosage is one 4-milligram chewable tablet or one packet of 4-milligram oral granules per day, taken at any time.
CHILDREN 12 TO 23 MONTHS OLD
The dosage is one packet of 4-milligram oral granules taken once a day in the evening.
The safety and effectiveness of Singulair for treating asthma in children less than 12 months old have not been studied.
CHILDREN 6 TO 23 MONTHS OLD
Allergies (perennial only)
The dosage is 1 packet of 4-milligram oral granules once a day, taken at any time.
The safety and effectiveness of Singulair for treating perennial
allergies in children less than 6 months old have not been studied.
Little is known about the effects of Singulair overdose. However,
any medication taken in excess can have serious consequences. If you
suspect an overdose, seek medical attention immediately.