Hydroxyzine reduces activity in the central nervous system. It also acts as an antihistamine, which reduces the effects of natural chemical histamine in the body. Histamine can cause symptoms of itching or hives on the skin.
Hydroxyzine is used as a sedative for the treatment of anxiety and stress. It is also used together with other drugs that are prescribed during and after general anesthesia.
Hydroxynx is also used to treat allergic skin reactions, such as hives or contact dermatitis.
Hydroxyzine may also be used for purposes not listed in this manual.
You should not use Hydroxyzine if you are pregnant, especially during the first or second trimester.
Hydroxyzine can cause a serious heart problem, especially if you use certain medicines at the same time. Tell your doctor about all your current medications and what you start or stop using.
You should not use Hydroxyzine if you are allergic to it, or if:
- you have a long QT syndrome;
- you are allergic to cetirizine (Zyrtec) or levocetirizine (Xyzal); or
- you are in the first trimester of pregnancy.
You should not use Hydroxyzine if you are pregnant, especially during the first or second trimester. Hydroxyzine can harm an unborn baby or cause birth defects. Use an effective contraceptive method to prevent pregnancy while you are using this medication.
To make sure that Hydroxyzine is safe for you, tell your doctor if you have:
- Problems in the digestive tract (stomach or intestines);
- obstruction of the bladder or other problems with urination;
- heart disease, weak heartbeat;
- personal or family history of prolonged QT syndrome;
- high or low potassium levels in the blood;
- if you recently had a heart attack.
It is not known whether hydroxyzine passes into breast milk and whether it can harm an infant. You should not breast-feed while using this medication.
Do not give this medicine to a child without medical advice.
Hydroxyzine: side effects
Obtain immediate medical attention if you have signs of an allergic reaction: shortness of breath; swelling of the face, lips, tongue, or throat.
In rare cases, hydroxyzine can cause a strong skin reaction. Stop taking this medicine and immediately consult a doctor if you have a sudden redness of the skin or a rash that spreads and causes the appearance of blisters or flaking.
Stop using Hydroxisin and immediately consult a doctor if you have:
- weak or strong heartbeat;
- headache with chest pain;
- severe dizziness, fainting; or
Side effects, such as drowsiness and confusion, may be more likely in the elderly.
Common side effects may include:
- dry mouth; or
- skin rash.
This is not a complete list of side effects, and others may also occur. Ask your doctor about side effects.
This medicine may worsen your thinking or reaction. Be careful if you are driving or doing something that requires attention from you.
Drinking alcohol with this medicine can cause side effects.
Taking this medicine with other drugs that make you sleep can worsen this effect.
Hydroxyzine can cause a serious heart problem, especially if you are using certain medicines at the same time, including antibiotics, antidepressants, heart rate medications, antipsychotics and medications to treat cancer, malaria, HIV or AIDS. Tell your doctor about all the medicines that you use and what you start or stop using during your treatment with Hydroxisin.
Other drugs may interact with Hydroxyzinee, including prescription and over-the-counter medicines, vitamins and plant products. Not all possible interactions are listed here. Tell each of your health care providers about all the medicines that you are using now, and about any medicine that you start or stop using.
Follow all directions on the recipe label. Your doctor may sometimes change your dose. Do not use this medicine in larger or smaller quantities or for longer than recommended.
Shake the oral suspension (liquid) before measuring the dose. Measure the liquid medicine with a dosing syringe or a special metering spoon. If you do not have a device for measuring the dose, ask your pharmacist.
Hydroxyzine is intended for short-term use only.
You should not take this medicine for more than 4 months. Call your doctor if your anxiety symptoms do not improve, or if they worsen.
Store at room temperature away from moisture and heat.
Symptoms of overdose may include severe drowsiness, nausea, vomiting, uncontrolled muscle movements or convulsions.
Take the missed dose as soon as you remember. Skip it if it’s time to take the next scheduled dose. Do not take additional medication to make up for the missed dose.