Intuniv (Guanfacine) Prescriptions Available Online Today

Guanfacine lowers blood pressure by decreasing heart rate and relaxing the blood vessels to allow blood to flow more easily through the body.

Guanfacine extended-release tablets may treat ADHD by affecting the part of the brain that controls impulsivity and attention.

Always follow your doctor's dosageinstructions.

Generally, the adult dose of guanfacine for treating high blood pressure is 1 mg orally once a day at bedtime. After three to four weeks, the dose can be increased to 2 mg. Adverse reactions increase significantly with doses above 3 mg per day.

The usual pediatric dose of extended-release guanfacine to treat ADHD is 1 mg, once per day, taken at the same time every day. The dosage may increase by up to 1 mg per week.

The maximum dosage will vary depending on the child's size but shouldn't exceed 7 mg per day.

The regular version of guanfacine slows your heart rate and lowers blood pressure.

The extended-release version of guanfacine can treat symptoms of ADHD by:

• Reducing distractibility

• Improving working memory

• Improving attention

• Improving impulse control

What are the side effects of guanfacine? Potential side effects of guanfacine include:

• Weakness

• Tiredness

• Dry mouth

• Irritability

• Headache

• Nausea

• Vomiting

• Constipation

• Stomach pain

• Decreased appetite

• Decreased sexual ability

• Rash

• Blurred vision

• Fainting

• Slow heart rate

While guanfacine is generally considered safe, it isn't right for everybody. Make sure to tell your doctor about all the medications you take, including over-the-counter medications, vitamins, and supplements. Especially be sure to mention if you take any of the following:

• Antihistamines

• Antidepressants

• Barbiturates like phenobarbital (Luminal)

• Sedatives

• Sleeping pills

• Tranquilizers

• Medications for anxiety, mental illness, nausea, high blood pressure, or seizures

• Carbamazepine (Epitol, Carbatrol, Equetro, Tegretol)

• Clarithromycin (Biaxin, in PrevPac)

• Rifabutin (Mycobutin)

• Itraconazole (Sporanox, Onmel)

• Ketoconazole (Nizoral)

• Nefazodone

• Indinavir (Crixivan)

• Nelfinavir (Viracept)

• Phenytoin (Phenytek, Dilantin)

• Pioglitazone (Actos, in Actoplus Met, in Oseni, in Duetact)

• Rifampin (Rifadin, in Rifater, in Rifamate, Rimactane)

• Ritonavir (Norvir, in Kaletra)

• Valproic acid (Depakene)

• St. John's Wort

Always discuss your medical history with your doctor before starting any medication. Before starting guanfacine, tell your doctor if you have:

• Ever fainted

• Recently had a heart attack

• Bipolar disorder

• Ever had a stroke

• Had liver, kidney, or heart disease

• A slow heart rate

• Low blood pressure

Also make sure to let your doctor know if you are pregnant, nursing, or planning on becoming pregnant.

Guanfacine can help people with ADHD have improved impulse control, attention, and working memory. It may help reduce ADHD symptoms like being inattentive, impulsive, hyperactive, or disruptive.

Guanfacine is a centrally acting alpha2A-adrenergic receptor agonist.

There is some evidence that extended-release guanfacine may help reduce symptoms of anxiety. However, guanfacine isn't commonly used to treat anxiety.Take our anxiety quiz here.

Everybody reacts to medications differently. However, anger and irritability are not common side effects of guanfacine.

When used as directed, extended-release guanfacine can help people with ADHD to improve their focus.

Guanfacine stimulates alpha2 adrenergic receptors in the brain, which causes the blood vessels to widen and the heart rate to slow down.