GENERIC NAME: GUANFACINE - ORAL (GWAN-fuh-seen)
BRAND NAME(S): Tenex
Medication Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage | Medical Alert
USES: This medication is used to treat high blood pressure.
HOW TO USE: Take this medication 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.
SIDE EFFECTS: 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.
PRECAUTIONS: 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.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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