What is this medicine?
DOXYLAMINE (dox IL a meen) is an antihistamine. It is used to treat sleeping problems.
How should I use this medicine?
Take this medicine by mouth with a glass of water. Follow the directions on the package or prescription label. Take this medicine 30 minutes before you go to bed. Do not take it more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 12 years old for selected conditions, precautions do apply.
Patients over 65 years old may have a stronger reaction and need a smaller dose.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
confused, agitated, or nervous
fast, irregular heartbeat
feeling faint or lightheaded, falls
muscle or facial twitches
trouble passing urine or change in the amount of urine
unusual bleeding or bruising
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
loss of appetite
stomach upset, vomiting
What may interact with this medicine?
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
some medicines for allergies, cold, or cough
medicines that make you sleepy
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Do not freeze. Protect from light. Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
lung or breathing disease, like asthma or emphysema
pain or trouble passing urine
ulcers or other stomach problems
an unusual or allergic reaction to doxylamine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
See your doctor or healthcare professional if you need to use this sleep aid for more than 2 weeks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.