It is important that your family doctor check your progress at regular appointments to make sure this drug is help you.
Check with your family doctor before you stop taking guanfacine. Your family doctor may want you to reduce gradually the amount you are taking before stopping completely.
Make sure that you have enough guanfacine on hand to last through weekends, holidays and vacations. You must not miss any doses. You may want to ask your family doctor for another written prescription for guanfacine to carry in your wallet or purse. You can then have it filled if you run out when you are away from home.
Before having any kind of surgery - including dental surgery or emergency treat, tell the family doctor or dentist in charge that you are using this drug.
Do not take other medication unless they have been discussed with your family doctor . This especially includes over-the-counter - nonprescription medication for appetite control, asthma, colds, cough, hay fever, or sinus problems, since they may tend to increase your blood pressure.
Guanfacine 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 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 using this drug .
Guanfacine may cause some people to become dizzy, drowsy, or less alert than they are normally Make sure you know how you react to this drug before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert .
Guanfacine may cause dryness of the mouth, nose and throat. For temporary relief of mouth dryness, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if dry mouth continues for more than 2 weeks, check with your physician or dentist. Continuing dryness of the mouth may increase the risk of dental disease, including tooth decay, gum disease and fungus infections.