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Guanfacine Coupon - Guanfacine 1mg tablet
30 tablets

Tenex Side Effects

What should I watch for?

Visit your doctor or health care professional for regular checks on your progress. Check your heart rate and blood pressure regularly while you are taking this medicine. Ask your doctor or health care professional what your heart rate should be and when you should contact him or her.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. To avoid dizzy or fainting spells, do not stand or sit up quickly, especially if you are an older person. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.

Avoid becoming dehydrated or overheated while taking this medicine.

Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.

Do not treat yourself for coughs, colds or allergies without asking your doctor or health care professional for advice. Some ingredients can increase your blood pressure.


Common and Rare Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Blurred vision


dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position


unusual tiredness or weakness

Less common

Chest pain or discomfort


difficulty with breathing

fast, slow, pounding, or irregular heartbeat

increased need to urinate

lightheadedness, dizziness, or fainting

mental depression

noisy breathing

passing urine more often

tightness in the chest

Incidence not known


back pain

cracks in the skin


fast, pounding, or irregular pulse

feeling of constant movement of self or surroundings




loss of consciousness

loss of heat from the body

mood or mental changes

numbness or tingling in the arms, legs, or face

red, swollen skin

scaly skin

seeing or hearing things that are not there


sensation of spinning

stiff neck




Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

Dizziness (extreme) or faintness

unusual tiredness or weakness (severe)

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common



dryness of the mouth


sleepiness or unusual drowsiness

unusual dullness or feeling of sluggishness

upper abdominal or stomach pain

weight gain

Less common


decreased appetite

decreased sexual ability

dry, itching, or burning eyes



lack or loss of strength

paleness of the skin

stomach discomfort, upset, or pain

trouble with sleeping

Incidence not known

Change in taste

decreased interest in sexual intercourse

difficulty in moving

general feeling of discomfort or illness

hair loss, thinning of hair

inability to have or keep an erection

joint pain or swelling

leg cramp or pain

loss in sexual ability, desire, drive, or performance

muscle ache, cramp, pain, or stiffness

seeing or hearing things that are not there

After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:

Anxiety or tenseness

increased salivation

nervousness or restlessness

shaking or trembling of the hands and fingers

stomach cramps


Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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