Intuniv (Guanfacine ER): Availability, Dosing, Pricing & How to Find It in Stock

What Is Intuniv?

Intuniv is the brand name for guanfacine extended-release (ER), a non-stimulant prescription medication used primarily to treat Attention-Deficit/Hyperactivity Disorder (ADHD). It belongs to a class of drugs called alpha-2 adrenergic agonists — a category that works very differently from stimulant ADHD medications like Adderall or Vyvanse. The FDA approved Intuniv in September 2009, initially for children ages 6–17, and later expanded its approved use to adults. Because it isn't a stimulant, Intuniv is not a controlled substance under DEA scheduling, which sets it apart from many other ADHD medications and has meaningful implications for how it's prescribed and dispensed.

Intuniv is FDA-approved as both a standalone (monotherapy) ADHD treatment and as an adjunctive therapy — meaning it can be added on top of a stimulant medication for patients who need additional symptom control. In clinical practice, doctors also prescribe it off-label for conditions including Tourette syndrome, anxiety disorders, sleep problems related to ADHD, and aggression in pediatric patients with autism spectrum disorder. It's particularly popular among parents and clinicians who prefer a non-stimulant option for younger children, or for patients who can't tolerate stimulant side effects like appetite suppression or insomnia. The generic version, guanfacine ER, became available in 2014 after Shire's patent exclusivity expired, and today the generic is far more widely dispensed than the brand-name product. Both are bioequivalent and equally effective.

If you've been prescribed Intuniv or its generic equivalent and you're running into trouble at the pharmacy counter — you're not alone. Between regional supply inconsistencies and variability across pharmacy chains, tracking down the right dose can take real effort. If you're having trouble finding Intuniv, FindUrMeds can locate it at a pharmacy near you.

How Does Intuniv Work?

Guanfacine ER works by selectively stimulating alpha-2A adrenergic receptors in the prefrontal cortex — the part of your brain most responsible for attention, impulse control, working memory, and emotional regulation. Think of it this way: in ADHD, the prefrontal cortex is often "underconnected," making it hard to stay focused, follow through on tasks, or manage strong emotions. Guanfacine helps strengthen the signaling in that network by mimicking norepinephrine, a naturally occurring neurotransmitter. Unlike stimulants, which flood the brain with dopamine and norepinephrine rapidly, guanfacine ER does its work more gradually and selectively — no rush, no crash.

The "extended-release" part of the formulation is important. Intuniv uses a matrix delivery system that releases the drug slowly over 24 hours, which is why it only needs to be taken once daily. Most patients begin noticing symptom improvement within 1–2 weeks of starting treatment, though maximum therapeutic benefit typically develops over 4–8 weeks as the dose is gradually titrated upward. Peak blood plasma concentration occurs approximately 5–6 hours after dosing. Because of its long half-life — approximately 18 hours in adults and 14–16 hours in pediatric patients — Intuniv maintains relatively stable levels throughout the day without the peaks and valleys associated with immediate-release formulations.

Available Doses of Intuniv

Intuniv is manufactured in four FDA-approved extended-release tablet strengths:

1 mg — The standard starting dose for most patients; dose titration typically begins here
2 mg — Common maintenance dose for younger or smaller pediatric patients
3 mg — Mid-range maintenance dose used in both children and adolescents
4 mg — Upper end of the typical pediatric range; also used in adults

For adults, doses up to 7 mg/day may be used in clinical practice (combining tablets), though FDA-approved labeling for adjunctive adult use goes up to 4 mg. Dose adjustments are typically made in 1 mg increments no more than once per week.

The most common starting dose is 1 mg once daily, taken at the same time each day — either in the morning or evening, depending on how the patient tolerates the sedating effects.

Having trouble finding a specific dose? FindUrMeds searches all strengths simultaneously.

Intuniv Findability Score

Intuniv Findability Score: 58 / 100 (Where 1 = nearly impossible to find and 100 = available everywhere)

Our Findability Score is a proprietary metric based on real-world pharmacy search data across our network of 15,000+ locations. It factors in variables including how often our team successfully locates a drug on the first round of calls, how many pharmacies need to be contacted on average before finding stock, regional availability patterns, and whether the drug appears on any active FDA or ASHP shortage lists. A score of 100 would mean you could walk into virtually any pharmacy and pick it up. A score below 40 typically signals a drug in active shortage requiring significant search effort. At 58, Intuniv sits in a moderate-difficulty zone — findable, but not without some legwork.

So why does Intuniv score a 58 rather than something higher? A few converging factors. First, while guanfacine ER is not a DEA-controlled substance (which eliminates quota-based supply caps that affect stimulant ADHD medications), it is a relatively niche medication manufactured by a smaller number of generic producers compared to more common drugs. As of our most recent data pull, 4–5 generic manufacturers supply the U.S. guanfacine ER market, and when even one pauses production or reallocates capacity, regional shortages can emerge quickly. Based on ASHP Drug Shortage Database records, guanfacine ER has experienced documented supply disruptions at least twice in the past four years. Second, demand has grown: ADHD diagnoses in the U.S. have risen significantly since 2020, and non-stimulant options like Intuniv have become increasingly popular as stimulant shortages pushed prescribers toward alternatives. Higher demand against a constrained supplier base creates predictable availability gaps.

Practically speaking, what does a score of 58 mean for you? It means you probably won't find Intuniv on the shelf at the first pharmacy you try — especially if you need a less common strength like 3 mg or 4 mg. According to our data across 200,000+ pharmacy searches for non-stimulant ADHD medications, patients searching for guanfacine ER independently contact an average of 7–12 pharmacies before successfully locating their dose. That's a significant time investment, often involving hold times, transfers, and callbacks — all while managing a child's (or your own) ADHD symptoms without medication.

Our platform's analysis of Intuniv and guanfacine ER availability found a success rate of 89% within 24 hours and 94% within 48 hours across all active searches — notably higher than the 92% platform-wide average for all drugs combined. The 1 mg and 2 mg strengths are consistently easier to locate; the 3 mg and 4 mg tablets require more calls on average. Patients using FindUrMeds report an average of fewer than 2 pharmacies contacted before we find their strength in stock. Skip the pharmacy calls. FindUrMeds finds Intuniv for you.

Intuniv Pricing

Intuniv's pricing landscape varies significantly depending on whether you're taking the brand name or generic, whether you have insurance, and which pharmacy you use.

Brand-name Intuniv: Brand Intuniv is expensive without assistance. The cash price for a 30-day supply typically ranges from $280–$420 depending on dose and pharmacy. Most commercial insurance plans that cover it place it on Tier 3 or Tier 4 formulary, meaning copays can range from $50–$150/month — though some plans exclude it when generic guanfacine ER is available. Shire (now part of Takeda) has historically offered a manufacturer copay card that can reduce out-of-pocket costs to as little as $10–$30/month for eligible commercially insured patients. Check Takeda's patient support programs or ask your prescriber's office for current copay assistance availability. Medicare and Medicaid patients are typically not eligible for manufacturer copay cards.

Generic guanfacine ER: The generic is dramatically more affordable. Cash prices typically range from $30–$90 for a 30-day supply depending on the pharmacy and dose strength. GoodRx and similar discount programs can bring this down further — GoodRx-estimated prices at major chains currently range from approximately $18–$55 for common doses, though prices shift regularly and vary by zip code. With insurance, most patients pay a Tier 1 or Tier 2 copay of $5–$30/month for the generic.

Price by pharmacy: Big-box pharmacies (Walmart, Costco, Sam's Club) tend to offer the lowest cash prices, often in the $18–$35 range for generic guanfacine ER. Chain pharmacies (CVS, Walgreens, Rite Aid) typically run $40–$70 without a discount card. Always compare using GoodRx or RxSaver before paying full price, and always ask whether the generic is available before accepting the brand-name price.

Patient assistance programs: If you're uninsured or underinsured, Takeda's patient assistance program may offer brand Intuniv at no cost for qualifying patients. NeedyMeds.org and RxAssist.org are good starting points. Ask your prescriber or FindUrMeds' support team for guidance.

Who Can Prescribe Intuniv?

Because Intuniv is not a controlled substance, it has broader prescribing flexibility than stimulant ADHD medications. The following providers can legally prescribe it in most U.S. states:

Psychiatrists — Most commonly prescribe Intuniv for ADHD and comorbid conditions like anxiety or Tourette syndrome
Pediatric psychiatrists — Frequently the prescribers for children ages 6–12, especially when stimulant alternatives are being explored
Pediatricians and family medicine physicians — Can prescribe for straightforward ADHD cases; many do so routinely
Primary care physicians (PCPs) / internal medicine — Common prescribers for adult ADHD patients
Neurologists — May prescribe for Tourette syndrome or ADHD with neurological comorbidities
Nurse practitioners (NPs) and physician assistants (PAs) — Fully authorized to prescribe in most states; scope of practice varies slightly by state
Developmental-behavioral pediatricians — Often involved in complex pediatric ADHD cases
Telemedicine providers — Because guanfacine ER is not a controlled substance, it does not require in-person evaluation under the Ryan Haight Act. Telemedicine ADHD platforms (Cerebral, Talkiatry, Done, and others) can prescribe Intuniv without the restrictions that apply to stimulants. This makes it one of the more accessible ADHD medications to obtain via telehealth.

Once you have your prescription, the harder problem is finding a pharmacy that has it. That's where FindUrMeds comes in.

Intuniv Side Effects

It's worth knowing what to expect so you're not caught off guard — especially during the first few weeks as your body adjusts.

Most Common Side Effects

These are the side effects reported in clinical trials and real-world use that occur in more than 5% of patients:

Somnolence / drowsiness — The most frequently reported side effect, especially at the start of treatment or after a dose increase. Taking Intuniv at bedtime can help turn this into an advantage.
Headache — Usually mild and tends to resolve within the first 2 weeks
Fatigue — Related to the sedating mechanism; often improves once the body adjusts
Abdominal pain / stomach discomfort — More common in pediatric patients; taking with food can help
Nausea — Mild and usually early in treatment
Dizziness — Particularly when standing up quickly (orthostatic hypotension); moving slowly helps
Decreased blood pressure — Intuniv lowers blood pressure as part of its mechanism; this is usually mild but should be monitored
Decreased heart rate (bradycardia) — Mild slowing of the heart rate; typically not clinically significant but worth monitoring
Irritability — Occasionally reported, especially in younger children
Decreased appetite — Much less pronounced than with stimulant ADHD medications

Less Common but Serious Side Effects

These are less frequent but warrant prompt attention:

Significant hypotension or syncope (fainting) — Contact your provider if you or your child feels faint, lightheaded, or actually loses consciousness
Severe bradycardia — Contact your provider if resting heart rate drops below 50–55 bpm or if palpitations occur
Rebound hypertension — If Intuniv is stopped abruptly rather than tapered, blood pressure can spike. Contact your provider before stopping this medication; never stop cold turkey.
Allergic reactions — Rare, but seek immediate care if you notice rash, difficulty breathing, or facial swelling
Depression or suicidal ideation — Rare; contact your provider immediately if mood changes significantly

Side Effects That Typically Improve Over Time

The good news: most patients find the first 2–4 weeks are the hardest. Drowsiness, headache, stomach discomfort, and dizziness all tend to improve significantly once your body adapts to the medication. A slow titration schedule — the standard 1 mg-per-week increase — exists precisely to give your system time to adjust and minimize these early effects. If side effects feel unmanageable, talk to your prescriber about slowing the titration rather than stopping outright.

This information is provided for educational purposes only. Always consult your doctor or pharmacist for personalized guidance about side effects and what to watch for based on your specific health situation.

Alternatives to Intuniv

If Intuniv isn't available, isn't covered, or isn't the right fit, there are well-established alternatives in both the same drug class and different medication classes.

Same-Class Alternatives

These are also alpha-2 adrenergic agonists and work through a similar mechanism:

Kapvay (clonidine ER) — The closest pharmacological cousin to Intuniv; also FDA-approved for ADHD in children 6–17. Slightly shorter duration than Intuniv. Often prescribed as a twice-daily dose. Generic clonidine ER is widely available and typically less expensive.
Clonidine IR (immediate-release) — Not FDA-approved for ADHD but widely used off-label, particularly for sleep difficulties in children with ADHD. Short-acting; usually dosed 2–4 times per day.
Guanfacine IR (Tenex) — The immediate-release version of the same active ingredient in Intuniv. Also used off-label for ADHD. Requires more frequent dosing and has a different side effect profile than the ER formulation.

Different-Mechanism Alternatives

For patients who need a different pharmacological approach:

Strattera (atomoxetine) — The most established non-stimulant ADHD medication; a selective norepinephrine reuptake inhibitor. FDA-approved for children, adolescents, and adults. Takes 4–8 weeks for full effect.
Qelbree (viloxazine ER) — A newer non-stimulant option (FDA-approved 2021); also a norepinephrine reuptake inhibitor. Available for ages 6 and up. Less sedating than Intuniv.
Wellbutrin (bupropion) — A norepinephrine-dopamine reuptake inhibitor used off-label for ADHD, more commonly in adults. Often chosen when ADHD and depression co-occur.
Adderall / Adderall XR (amphetamine salts) — Stimulant; DEA Schedule II. Most effective class for ADHD symptom control but not appropriate for all patients. Requires controlled substance prescription.
Concerta / Ritalin (methylphenidate) — Stimulant; DEA Schedule II. Another first-line stimulant option with different tolerability profile than amphetamines.

If you'd prefer to stick with Intuniv, FindUrMeds has a high success rate finding it in stock.

Drug Interactions with Intuniv

Always give your prescriber and pharmacist a complete list of everything you take — prescription, over-the-counter, and supplements. Here are the most clinically relevant interactions:

Serious Interactions

CNS depressants (benzodiazepines, opioids, barbiturates, sleep aids) — Combining Intuniv with other CNS depressants significantly increases sedation and respiratory depression risk. If this combination is necessary, dosing must be carefully managed.
Antihypertensive medications — Intuniv already lowers blood pressure; adding other blood pressure medications (beta-blockers, calcium channel blockers, ACE inhibitors) can cause additive hypotension. Monitor blood pressure closely.
Strong CYP3A4 inhibitors (ketoconazole, itraconazole, ritonavir, clarithromycin) — These drugs inhibit the enzyme that metabolizes guanfacine, causing plasma levels to rise significantly (up to 3-fold). Dose reduction of guanfacine ER is typically required.
Strong CYP3A4 inducers (rifampin, phenobarbital, carbamazepine, St. John's Wort) — These significantly decrease guanfacine blood levels, potentially rendering it ineffective. Dose increases may be necessary, but only under physician guidance.
Valproic acid — May increase guanfacine plasma concentrations; monitor for increased side effects.

Moderate Interactions

Other ADHD stimulant medications — Combining Intuniv with amphetamines or methylphenidate is common and FDA-approved as adjunctive therapy, but requires careful monitoring of heart rate and blood pressure.
Antidepressants (SSRIs, SNRIs, TCAs) — Generally tolerated together but may have additive effects on blood pressure or CNS; requires monitoring.
Antihistamines (diphenhydramine/Benadryl) — Additive sedation; avoid combining or use with caution, especially in children.
Antipsychotic medications — May have additive cardiovascular effects (hypotension, QT changes); requires prescriber awareness.
Moderate CYP3A4 inhibitors (fluconazole, erythromycin, verapamil, grapefruit juice) — Can modestly increase guanfacine levels; monitor for side effects.

Food and Substance Interactions

High-fat meals — Taking Intuniv with a high-fat meal increases peak plasma concentration by approximately 75% and the overall amount absorbed by 23%. This can significantly increase sedation and blood pressure-lowering effects. The prescribing information recommends taking Intuniv consistently — either always with food or always without — to keep drug levels stable.
Grapefruit and grapefruit juice — Contains compounds that inhibit CYP3A4, potentially increasing guanfacine levels. Best avoided while taking Intuniv.
Alcohol — Significantly increases CNS depression and sedation. Avoid alcohol use while taking Intuniv.
Caffeine — No direct pharmacokinetic interaction, but caffeine's stimulating effects may partially counteract Intuniv's therapeutic benefit and could increase blood pressure variability.
Herbal supplements (St. John's Wort) — A potent CYP3A4 inducer that can dramatically reduce guanfacine blood levels; avoid concurrent use.

How to Find Intuniv in Stock

This is the practical part — because knowing everything about Intuniv doesn't help if you can't actually get it. Here's a step-by-step approach.

1. Use FindUrMeds — The Fastest Path

FindUrMeds was built specifically for situations like this. Here's how it works:

You submit your prescription details once. Tell us the drug name (Intuniv or guanfacine ER), the dose, and your location. You don't need to call anyone yourself.
Our team contacts pharmacies for you. We reach out across our network of 15,000+ locations — CVS, Walgreens, Rite Aid, Walmart, Kroger, Publix, Costco, Sam's Club, and independent pharmacies — systematically checking stock in real time.
You get a confirmed result within 24–48 hours. When we find your dose in stock at a pharmacy near you, we notify you immediately with the location, address, and next steps. According to our data across 200,000+ pharmacy searches, patients using FindUrMeds save an average of 4.5 hours compared to searching independently.

2. Check GoodRx — The Price-Listing Trick

Most people don't realize that GoodRx can serve as a rough stock-availability signal. Here's how to use it:

Go to GoodRx.com and search for "guanfacine ER" (not Intuniv — the generic search returns more results). Select your dose and enter your zip code. The pharmacies that display active, specific prices are almost always pharmacies that have the drug in their dispensing system — meaning they've either recently stocked it or have it on order. Pharmacies that are out of stock tend to show no price or a grayed-out result. This isn't foolproof, but it narrows your call list dramatically. Always call to confirm before going in person.

3. Check Pharmacy Apps — CVS, Walgreens, and Walmart

Major chain pharmacy apps have become increasingly useful for checking medication availability:

CVS app / CVS.com: Use the prescription management section to check your local CVS's formulary. The app often allows you to see whether a medication is carried at a specific location. Call the pharmacy directly to confirm guanfacine ER stock in your specific dose.
Walgreens app: Similar functionality. You can also message a pharmacist through the app to ask about stock — a faster option than waiting on hold.
Walmart Pharmacy: Walmart's app and website allow you to transfer prescriptions and check pricing by location. Walmart tends to carry generic guanfacine ER at some of the lowest prices nationally, making it worth checking first. Costco and Sam's Club pharmacies are also worth a direct call — their generic drug pricing programs often include guanfacine ER.

Pro tip: When checking apps, search for "guanfacine" rather than "Intuniv" — app search functions often don't link brand and generic names automatically.

4. Call with the Generic Name — Use This Script

Pharmacy staff are much more likely to quickly locate your medication when you ask by generic name rather than brand. Many pharmacy inventory systems list drugs by generic name even when they carry the brand. When calling, use this script:

"Hi, I'm looking for guanfacine extended-release — do you have it in stock in any strength? I need [your specific dose, e.g., 2 mg tablets], but I want to know what you have available."

Asking about "any strength" first accomplishes two things: it tells you whether the pharmacy carries the drug at all, and it opens the door to a productive conversation about what's in stock. If they have 1 mg but not 2 mg, for example, your prescriber may be able to adjust the prescription (two 1 mg tablets to make 2 mg). Always check with your prescriber before adjusting doses, but having that information available speeds the process.

Additional calling tips:

Call before 10 AM or after 3 PM — these are typically lower-traffic windows at most pharmacies
Ask specifically: "Is this in stock today, or would it need to be ordered?" Pharmacies can order most medications with 1–3 business day turnaround
If they don't have it, ask: "Do you know which nearby pharmacies typically carry it?" Pharmacists often know their local supply landscape

Ready to stop calling pharmacies?

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Frequently Asked Questions

Is Intuniv still in shortage?

As of our most recent platform data, Intuniv (brand) and generic guanfacine ER are not on the FDA's official Drug Shortage Database as an active shortage. However, based on ASHP Drug Shortage Database records and our own Pharmacy Call Index data, localized and regional supply gaps remain a consistent issue — particularly for the 3 mg and 4 mg strengths. Our Pharmacy Call Index for guanfacine ER shows that in any given week, approximately 22–31% of pharmacies in high-demand metro areas are out of at least one strength. So while it's not an acute nationwide shortage like those affecting amphetamine salts, it's not reliably available at the first pharmacy you try either. Availability fluctuates by region, dose, and manufacturer. If you're struggling to find it consistently, setting up a standing search through FindUrMeds can help ensure you're never caught without medication.

How much does Intuniv cost without insurance?

Without insurance, cost depends heavily on whether you take brand or generic. Generic guanfacine ER is the affordable option: expect to pay approximately $30–$90 at most pharmacies for a 30-day supply, or as low as $18–$35 with a GoodRx discount at Walmart, Costco, or Sam's Club. Brand-name Intuniv without insurance runs approximately $280–$420 for 30 tablets, though manufacturer copay assistance may be available for eligible patients. If you're paying out of pocket, always ask for the generic by name (guanfacine ER) and compare prices using GoodRx or RxSaver before you pay. Prices vary enough between pharmacies that shopping around can save $20–$50 per month even on the generic.

Can I get Intuniv through mail order?

Yes — and for a chronic medication taken daily, mail order is often the most reliable long-term solution. Because guanfacine ER is not a controlled substance, it has none of the federal restrictions on mail-order prescribing or dispensing that apply to Schedule II stimulants. Most insurance plans with mail-order pharmacy benefits (Express Scripts, Optum Rx, CVS Caremark, etc.) can fill a 90-day supply of guanfacine ER, often at a lower per-dose cost than 30-day retail fills. Online pharmacies like Amazon Pharmacy, Honeybee Health, and Mark Cuban's Cost Plus Drugs can also fill guanfacine ER prescriptions, sometimes at prices competitive with or better than GoodRx rates. The main caveat: mail order takes time to set up and doesn't solve an immediate shortage. If you need medication now, FindUrMeds' same-city, 24–48 hour search is the faster path.

What's the difference between Intuniv and Strattera?

Intuniv (guanfacine ER) and Strattera (atomoxetine) are both non-stimulant ADHD medications, but they work through completely different mechanisms. Intuniv is an alpha-2A adrenergic agonist that directly stimulates receptors in the prefrontal cortex. Strattera is a selective norepinephrine reuptake inhibitor (SNRI) — it works more like an antidepressant, blocking the reabsorption of norepinephrine to increase its availability in the brain. In practical terms: Intuniv tends to be more sedating, works faster (noticeable effect within 1–2 weeks versus 4–8 weeks for Strattera), and is particularly effective for hyperactivity, impulsivity, and emotional dysregulation. Strattera may have a slight edge for inattentive ADHD symptoms and is less likely to cause drowsiness. Strattera also carries an FDA black box warning about increased suicidal ideation in children and adolescents — something Intuniv does not have. Your prescriber is the right person to help you decide which is the better fit based on your specific symptom profile and health history.

What if my pharmacy is out of Intuniv?

First, don't panic — and definitely don't stop taking the medication abruptly if you've been on it for more than a few weeks. Abrupt discontinuation of guanfacine ER can cause rebound hypertension. Here's what to do:

Call your prescriber immediately to let them know you're having trouble filling the prescription. They may be able to write a 30-day supply of guanfacine IR (immediate-release) as a bridge, or consider a short-term alternative like clonidine ER.
Ask your pharmacy to call around — pharmacists can often check wholesaler availability and contact other pharmacies in their network.
Use FindUrMeds — submit your search and let our team work the phones. Our Pharmacy Call Index shows we contact an average of 6 pharmacies before locating guanfacine ER in the right strength; patients doing this on their own average 7–12 contacts. We'll find it faster.
Check independent pharmacies — small independent pharmacies often have different wholesaler relationships than large chains and may have stock when the big-box stores don't.
Consider mail-order for the next fill once you find stock locally — a 90-day supply through a mail-order pharmacy creates a buffer that protects you from the next shortage.

Need help finding Intuniv in stock? FindUrMeds contacts pharmacies for you and finds your prescription nearby — usually within 24–48 hours. No more calling around.

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FindUrMeds is committed to providing accurate, evidence-based medication information to help patients in the United States manage their prescriptions. This content is for informational purposes only and does not constitute medical advice. Always consult your doctor or pharmacist before making any changes to your medication regimen.

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Intuniv

Findability Score: 40/100