GUANFACINE(Tenex) is an antihypertensive. Guanfacine relaxes blood vessels, relieving high blood pressure (hypertension). It is not a cure and must be taken regularly to prevent complications of uncontrolled blood pressure. Untreated high blood pressure can cause a stroke, heart failure, or damage to your kidneys.
Take Guanfacine HCL Tablets exactly as prescribed. Try to take it at the same time(s) each day, usually at bedtime. This medication may be taken with food if stomach irritation occurs. It is important to continue taking this medication even if you feel well. Most people with high blood pressure do not feel sick. Do not stop taking this medication suddenly without consulting your doctor. Some conditions may become worse when the medication is stopped abruptly.
MISSED DOSE: If you miss a dose, take as soon as remembered do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up. Check with your doctor if 2 or more doses have been missed.
Dizziness, drowsiness, headache, constipation, gas pains, diarrhea, loss of appetite, fatigue, and nasal congestion may occur. If these symptoms persist or worsen, notify your doctor. Inform your doctor if you develop: chest pain, shortness of breath, skin rash, swelling of the hands or feet, blurred vision, yellowing of the eyes or skin. Inform your doctor if you experience any of these symptoms: mental/mood changes, tingling of the hands or feet, dry mouth, impotence, decreased sexual desire, vision changes, taste changes, ringing in the ears, leg cramps. If you notice other effects not listed above, contact your doctor or pharmacist.
Tell your doctor your medical history, especially of: heart or circulatory problems, kidney or liver disease, any allergies. Limit your intake of alcoholic beverages while taking this medication. Alcohol can lead to excessive drowsiness, dizziness or fainting. Also, avoid hot showers, saunas and prolonged exercise since excessive heat can intensify dizziness. Caution is advised when performing tasks requiring alertness (e.g., driving), since this drug may cause drowsiness. To minimize dizziness and lightheadedness when rising from a seated or lying position, get up slowly Before having surgery, including dental surgery, tell the doctor or dentist in charge about your blood pressure medications. Caution is advised when using this drug in the elderly because they may be more sensitive to the side effects of the drug. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. It is not known if guanfacine passes into breast milk. Consult your doctor before breast-feeding.
If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include drowsiness, sluggishness, and slowed heartbeat.
Do not allow anyone else to take this medication. Store at room temperature away from sunlight and moisture. Keep out of the reach of children in a container that small children cannot open.
The above information is intended to supplement, not substitute for, the expertise and judgment of your physician,pharmacist, or other healthcare professional. It should not be construed to indicate that the use of the product is safe, appropriate, or effective for you. Consult your
healthcare professional before taking the product.
Tell your doctor of all prescription and nonprescription drugs you may use, including: barbiturates, tranquilizers, medications for depression or allergies, narcotic pain medication, other drugs that make you drowsy (such as certain antihistamines and anti-seizure drugs). Do not take any medication for coughs, colds or allergies without first checking with your doctor or pharmacist. Some of these products contain ingredients that can increase blood pressure or cause drowsiness (e.g., antihistamines such as diphenhydramine). Do not start or stop any medicine without doctor or pharmacist approval.