Before you have any skin tests for allergies, tell the family doctor in charge that you are taking this drug. The results of the test may be effected by the antihistamine in this drug.
When taking antihistamines - contained in this combination drug on a regular basis, make sure your family doctor knows if you are taking large amounts of aspirin at the same time - as for arthritis or rheumatism. Effects of too much aspirin, such as ringing in the ears, may be covered up by the antihistamine.
The antihistamine in this drug will add to the effects of alcohol and other CNS depressants - medication that slow down the nervous system, possibly causing drowsiness. Some examples of CNS depressants are other antihistamines or drug for hay fever, other allergies, or colds; sedatives, tranquilizers, or sleeping drug; prescription pain drug or narcotics; barbiturates; drug for seizures; muscle relaxants; or anesthetics, including some dental anesthetics Check with your family doctor before taking any of the above while you are taking this drug .
The antihistamine in this drug may cause some people to become drowsy, dizzy, or less alert than they are normally Some antihistamines are more likely to cause drowsiness than others - loratadine , for example, rarely produces this effect. Make sure you know how you react before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert .
The decongestant in this drug may add to the central nervous system - CNS stimulant and other effects of diet aids Do not use medication for diet or appetite control while taking this drug unless you have checked with your family doctor .
The decongestant in this drug may cause some people to be nervous or restless or to have trouble in sleeping. If you have trouble in sleeping, take the last dose of this drug for each day a few hours before bedtime . If you have any questions about this, check with your family doctor.
Antihistamines may cause dryness of the mouth, nose and throat. Some antihistamines are more likely to cause dryness of the mouth than others - loratadine , for example, rarely produces this effect. For temporary relief, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your dentist. Continuing dryness of the mouth may increase the risk of dental disease, including tooth decay, gum disease and fungus infections.
For diseaseds using promethazine-containing drug :