-alcohol
-antihistamines for allergy, cough, and cold
-atropine
-certain medicines for anxiety or sleep
-certain medicines for bladder problems like oxybutynin, tolterodine
-certain medicines for depression like amitriptyline, fluoxetine, sertraline
-certain medicines for Parkinson''s disease like benztropine, trihexyphenidyl
-certain medicines for stomach problems like dicyclomine, hyoscyamine
-certain medicines for travel sickness like scopolamine
-epinephrine
-general anesthetics like halothane, isoflurane, methoxyflurane, propofol
-ipratropium
-MAOIs like Marplan, Nardil, and Parnate
-medicines for high blood pressure
-medicines for seizures like phenobarbital, primidone, phenytoin
-medicines that relax muscles for surgery
-metoclopramide
-narcotic medicines for pain

They need to know if you have any of these conditions:

-blockage in your bowel
-diabetes
-glaucoma
-have trouble controlling your muscles
-heart disease
-liver disease
-low blood counts, like low white cell, platelet, or red cell counts
-lung or breathing disease, like asthma
-Parkinson''s disease
-prostate disease
-seizures
-stomach or intestine problems
-trouble passing urine
-an unusual or allergic reaction to promethazine, sulfites, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Your condition will be monitored carefully while you are receiving this medicine.
Your healthcare professional will discuss with you the risks and the benefits of using this medicine. This medicine has caused serious side effects in some patients after it was injected into a vein. Watch closely for any signs or symptoms of a local reaction like burning, pain, redness, swelling, and blistering and tell your healthcare professional immediately if any occur. These symptoms may occur when you receive the injection or may occur hours or even days after the injection.
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. To reduce the risk of dizzy or fainting spells, do not stand or sit up quickly, especially if you are an older patient. Alcohol may increase dizziness and drowsiness. Avoid alcoholic drinks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water will help.
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.
Keep out of the sun, or wear protective clothing outdoors and use a sunscreen. Do not use sun lamps or sun tanning beds or booths.
This medicine may increase blood sugar. Ask your health care provider if changes in diet or medicines are needed if you have diabetes.

This drug is given in a hospital or clinic and will not be stored at home.