HomeNDC LookupIngredientsClonidine › 00378-0873-99
Clonidine .3 mg/d Patch — NDC 00378-0873-99 package photo

Clonidine .3 mg/d Patch

by Mylan Pharmaceuticals Inc. · 4 POUCH in 1 CARTON (0378-0873-99) / 1 PATCH in 1 POUCH (0378-0873-16) / 7 d in 1 PATCH
NDC 00378-0873-99
🏷️ FDA NDC (as labeled) 0378-0873-99 billing pads the labeler segment with a zero
Rx only Generic On market Non-controlled
🗂️ Data synced Aug 20, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →
⚠️
Other active recalls for Clonidine (different manufacturers) — 3 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Mar 19, 2026 — CGMP Deviations: use of an unapproved raw material (Teva Pharmaceuticals USA, Inc) · FDA recall D-0473-2026
Class II · Mar 19, 2026 — CGMP Deviations: use of an unapproved raw material (Teva Pharmaceuticals USA, Inc) · FDA recall D-0472-2026
Class II · Mar 19, 2026 — CGMP Deviations: use of an unapproved raw material (Teva Pharmaceuticals USA, Inc) · FDA recall D-0474-2026
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

🆔 Identity & classification

FDA NDC (as labeled) 0378-0873-99
Product NDC 0378-0873
11-digit billing NDC 00378087399
NCPDP billing unit EA — each (per item)
RxCUI 998671, 998675, 998679
UNII MN3L5RMN02
Application # ANDA076166
SPL Set ID 7adfc439-e6d0-4593-87dd-0eef36d33c6d
Established class (EPC) Central alpha-2 Adrenergic Agonist
Mechanism of action Adrenergic alpha2-Agonists
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2013-03-01
Route TRANSDERMAL
Dosage form PATCH
Substance CLONIDINE
GCN Seq No 000345
GCN 23872
HICL code 036550
Ingredient (HICL) Clonidine
HIC1 code A
Therapeutic class — broad (HIC1) Cardiovascular System
HIC2 code A4
Therapeutic class — intermediate (HIC2) Antihypertensives
HIC3 code A4B
Therapeutic class — specific (HIC3) Antihypertensives, Sympatholytic
AHFS code 24:24.00.00
AHFS class Central Alpha-Agonists
FDB label name CLONIDINE 0.3 MG/DAY PATCH
FDB brand name Clonidine
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AB · RLD · RS
Why two NDCs? The FDA registers this code as 0378-0873-99 — a 4-4-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the labeler segment → 00378-0873-99. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Central alpha-2 Adrenergic Agonist class.

Pharmacologic class Central alpha-2 Adrenergic Agonist
Drug family (ATC) Imidazoline receptor agonists, Other antimigraine preparations, Sympathomimetics in glaucoma therapy
How it works Adrenergic alpha2-Agonists
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerMylan Pharmaceuticals Inc.
Application holderMYLAN TECHNOLOGIES INC
FDA applicationANDA076166 (ANDA)
Labeler code00378
First marketedMar 2013
Product typeHuman Prescription Drug
Portfolio473 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

Label name CLONIDINE 0.3 MG/DAY PATCH Ingredient Clonidine
📖 What it is MedlinePlus · NLM

Transdermal clonidine is used alone or in combination with other medications to treat high blood pressure. Clonidine is in a class of medications called centrally acting alpha-agonist hypotensive agents. It works by decreasing your heart rate and relaxing the blood vessels so that blood can flow more easily through the body.

Read the full MedlinePlus article ↗
📗 Our plain-language guide HelloPharmacist
  • You're right that it's used for several different conditions — that can be confusing. Depending on the product, clonidine is prescribed to lower high blood pressure in adults, to t...
  • What exactly is clonidine used for — I've seen it mentioned for totally different things?
  • Drowsiness is one of the most common side effects, especially when you first start or when your dose goes up. Many people find it eases a bit over time. Until you know how it affec...
  • Will clonidine make me too sleepy to function?
📖 Read our full Clonidine guide →
1
Nutrient depletion considerations

Clonidine may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.

An association is not a deficiency. Educational only — don't start or stop anything without professional guidance.
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

🧪 Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII T5L8T28FGP
    Mineral oil is a clear, odorless liquid derived from crude oil. It acts as a lubricant and emollient in medications, helping pills slide smoothly during manufacturing and aiding moisture retention in topical products.
  • UNII ETJ7Z6XBU4
    Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.

2 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMedingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer eaPer package
Retail pharmacies payNADAC · weekly $12.047 $48.19 / 4 patch
Medicaid paysCMS SDUD · 12 mo $15.86 $63.43 / 4 patch
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
NADAC price history (per ea) — tap or hover for the price & month
Dec 2021 Jul 2022 Dec 2025 Aug 2026 $16.898 $11.961
▼ Down 26% over the last 24 months.
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Clonidine .3 mg/dthis 00378-0873-99 Mylan 4 patches $12.047 AB Availability likely
Clonidine transdermal system .3 mg/d 00591-3510-04 Actavis 4 patches $12.047 AB Availability likely
Clonidine Transdermal System USP, 0.3 mg/day 52817-0612-04 TruPharma, 4 patches $12.047 AB Availability likely
Clonidine .3 mg/24h 75907-0025-48 Dr. 4 patches $12.047 AB Availability likely
Clonidine Transdermal System USP, 0.3 mg/day 52817-0507-04 TruPharma, 4 patches AB FDA listed
Catapres-TTS-3 .3 mg/d 82089-0103-34 Technomed 4 patches AB FDA listed
Catapres-TTS-3 .3 mg/d 82089-0203-34 Technomed 4 patches AB FDA listed
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2013
On the market since
Mar 2013
📍
2026
Currently FDA-listed
13 years listed
🔓
·
Generic on the market
this product is a generic
This is a generic drug

This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

🗺️ Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for 00378-0873-99, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q4 2025 · 4 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
3.1K
Units reimbursed last 4 qtrs
14.5K
Gross reimbursed last 4 qtrs
$229.9K
Avg / prescription
$74.16
Avg / unit
$15.8582
Latest quarter Q4 2025
513Rx
Medicaid pays / ea
$15.8582
gross reimbursed
vs
NADAC / ea
$12.0466
acquisition cost
=
Spread
+$3.8116
+32% vs cost
What Medicaid paid per ea (before rebates; includes the pharmacy’s dispensing fee) compared with NADAC — the average price pharmacies pay to buy the drug. A positive spread means Medicaid reimbursed more than the purchase price, before manufacturer rebates.
Fee-for-service vs managed care
44% FFS 56% MCO
Fee-for-service · 1,359 Rx Managed care · 1,741 Rx
State Medicaid map
Alaska: no data reported AK Maine: no data reported ME Washington: 340 units · 4.4 per 100k residents WA Idaho: 276 units · 14.1 per 100k residents ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: 548 units · 9.6 per 100k residents MN Wisconsin: 545 units · 9.2 per 100k residents WI Michigan: 271 units · 2.7 per 100k residents MI New York: 2,058 units · 10.5 per 100k residents NY Vermont: no data reported VT New Hampshire: no data reported NH Oregon: 360 units · 8.5 per 100k residents OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: 418 units · 3.3 per 100k residents IL Indiana: 388 units · 5.7 per 100k residents IN Ohio: 1,725 units · 14.6 per 100k residents OH Pennsylvania: 614 units · 4.7 per 100k residents PA New Jersey: 250 units · 2.7 per 100k residents NJ Massachusetts: no data reported MA California: 1,600 units · 4.1 per 100k residents CA Utah: no data reported UT Colorado: 320 units · 5.4 per 100k residents CO Nebraska: no data reported NE Missouri: 420 units · 6.8 per 100k residents MO Kentucky: 270 units · 6.0 per 100k residents KY West Virginia: 180 units · 10.2 per 100k residents WV Virginia: 349 units · 4.0 per 100k residents VA Maryland: 512 units · 8.3 per 100k residents MD Connecticut: no data reported CT Rhode Island: no data reported RI Arizona: 566 units · 7.6 per 100k residents AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: 123 units · 1.7 per 100k residents TN North Carolina: 454 units · 4.2 per 100k residents NC South Carolina: no data reported SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: 64 units · 1.4 per 100k residents LA Mississippi: 103 units · 3.5 per 100k residents MS Alabama: no data reported AL Georgia: 405 units · 3.7 per 100k residents GA D.C.: 248 units · 36.5 per 100k residents DC Hawaii: no data reported HI Texas: 616 units · 2.0 per 100k residents TX Florida: 474 units · 2.1 per 100k residents FL
Units reimbursed · per 100k residents
1.436.5
gray = no data reported
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 D.C. 36.5 /100k
2 Ohio 14.6 /100k
3 Idaho 14.1 /100k
4 New York 10.5 /100k
5 West Virginia 10.2 /100k
6 Minnesota 9.6 /100k
7 Wisconsin 9.2 /100k
8 Oregon 8.5 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.

📊 Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Clonidine — the program that covers self-administered drugs. 4 manufacturers.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Clonidine. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$13.31M
Claims incl. refills
123.2K
Beneficiaries
66.1K
Spend / beneficiary
$201.20
Spend / claim
$108.02
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

🔬 Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Clonidine — the ingredient across all brands.

Top reported reactions

Fatigue3,519
Pain3,514
Nausea3,475
Headache3,432
Hypertension3,275
Dyspnoea2,748
Diarrhoea2,666

Age at onset

Neonate74
Infant109
Child656
Adolescent326
Adult3,815
Elderly2,595

Reporter sex

57,112 reports
Male · 40%
Female · 60%
Unknown · 0%

Serious outcomes

Hospitalization19,920
Disabling1,368
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 4,032 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
00378-0873-99 You're viewing this 4 POUCH in 1 CARTON (0378-0873-99) / 1 PATCH in 1 POUCH (0378-0873-16) / 7 d in 1 PATCH 2013-03-01 Active

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 24 words

INDICATIONS AND USAGE Clonidine transdermal system is indicated in the treatment of hypertension. It may be employed alone or concomitantly with other antihypertensive agents.

⏱️ Dosage and Administration ~1 min read

DOSAGE AND ADMINISTRATION Apply clonidine transdermal system once every 7 days to a hairless area of intact skin on the upper outer arm or chest. Each new application of clonidine transdermal system should be on a different skin site from the previous location. If the system loosens during 7-day wearing, the adhesive cover should be applied directly over the system to ensure good adhesion.

There have been rare reports of the need for patch changes prior to 7 days to maintain blood pressure control. To initiate therapy, clonidine transdermal system dosage should be titrated according to individual therapeutic requirements, starting with clonidine transdermal system 0.1 mg/day. If after one or two weeks the desired reduction in blood pressure is not achieved, increase the dosage by adding another clonidine transdermal system, 0.1 mg/day or changing to a larger system.

An increase in dosage above two clonidine transdermal system 0.3 mg/day is usually not associated with additional efficacy. When substituting clonidine transdermal system for oral clonidine or for other antihypertensive drugs, physicians should be aware that the antihypertensive effect of clonidine transdermal system may not commence until 2-3 days after initial application. Therefore, gradual reduction of prior drug dosage is advised.

Some or all previous antihypertensive treatment may have to be continued, particularly in patients with more severe forms of hypertension. Renal Impairment Patients with renal impairment may benefit from a lower initial dose. Patients should be carefully monitored.

Since only a minimal amount of clonidine is removed during routine hemodialysis, there is no need to give supplemental clonidine following dialysis.

Contraindications 24 words

CONTRAINDICATIONS Clonidine transdermal system should not be used in patients with known hypersensitivity to clonidine or to any other component of the therapeutic system.

⚠️ Warnings 178 words

WARNINGS Withdrawal Patients should be instructed not to discontinue therapy without consulting their physician. Sudden cessation of clonidine treatment has, in some cases, resulted in symptoms such as nervousness, agitation, headache, tremor, and confusion accompanied or followed by a rapid rise in blood pressure and elevated catecholamine concentrations in the plasma. The likelihood of such reactions to discontinuation of clonidine therapy appears to be greater after administration of higher doses or continuation of concomitant beta-blocker treatment and special caution is therefore advised in these situations.

Rare instances of hypertensive encephalopathy, cerebrovascular accidents and death have been reported after clonidine withdrawal. When discontinuing therapy with clonidine transdermal system, the physician should reduce the dose gradually over 2 to 4 days to avoid withdrawal symptomatology. An excessive rise in blood pressure following discontinuation of clonidine transdermal system therapy can be reversed by administration of oral clonidine hydrochloride or by intravenous phentolamine.

If therapy is to be discontinued in patients receiving a beta-blocker and clonidine concurrently, the beta-blocker should be withdrawn several days before the gradual discontinuation of clonidine transdermal system.

🤒 Adverse Reactions ~3 min read

ADVERSE REACTIONS Clinical Trial Experience with Clonidine Transdermal System Most systemic adverse effects during clonidine transdermal system therapy have been mild and have tended to diminish with continued therapy. In a 3-month multi-clinic trial of clonidine transdermal system in 101 hypertensive patients, the systemic adverse reactions were, dry mouth (25 patients) and drowsiness (12), fatigue (6), headache (5), lethargy and sedation (3 each), insomnia, dizziness, impotence/sexual dysfunction, dry throat (2 each) and constipation, nausea, change in taste and nervousness (1 each).

In the above mentioned 3-month controlled clinical trial, as well as other uncontrolled clinical trials, the most frequent adverse reactions were dermatological and are described below. In the 3-month trial, 51 of the 101 patients had localized skin reactions such as erythema (26 patients) and/or pruritus, particularly after using an adhesive cover throughout the 7-day dosage interval. Allergic contact sensitization to clonidine transdermal system was observed in 5 patients.

Other skin reactions were localized vesiculation (7 patients), hyperpigmentation (5), edema (3), excoriation (3), burning (3), papules (1), throbbing (1), blanching (1), and a generalized macular rash (1). In additional clinical experience, contact dermatitis resulting in treatment discontinuation was observed in 128 of 673 patients (about 19 in 100) after a mean duration of treatment of 37 weeks. The incidence of contact dermatitis was about 34 in 100 among white women, about 18 in 100 in white men, about 14 in 100 in black women, and approximately 8 in 100 in black men.

Analysis of skin reaction data showed that the risk of having to discontinue clonidine transdermal system treatment because of contact dermatitis was greatest between treatment weeks 6 and 26, although sensitivity may develop either earlier or later in treatment. In a large-scale clinical acceptability and safety study by 451 physicians in a total of 3539 patients, other allergic reactions were recorded for which a causal relationship to clonidine transdermal system was not established: maculopapular rash (10 cases); urticaria (2 cases); and angioedema of the face (2 cases), which also affected the tongue in one of the patients.

Marketing Experience with Clonidine Transdermal System The following adverse reactions have been identified during post-approval use of clonidine transdermal system. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate reliably their frequency or establish a causal relationship to drug exposure. Decisions to include these reactions in labeling are typically based on one or more of the following factors: (1) seriousness of the reaction, (2) frequency of reporting, or (3) strength of causal connection to clonidine transdermal system.

Body as a Whole: Fever; malaise; weakness; pallor; and withdrawal syndrome. Cardiovascular: Congestive heart failure; cerebrovascular accident; electrocardiographic abnormalities (i.e., bradycardia, sick sinus syndrome disturbances and arrhythmias); chest pain; orthostatic symptoms; syncope; increases in blood pressure; sinus bradycardia and AV block with and without the use of concomitant digitalis; Raynaud’s phenomenon; tachycardia; bradycardia; and palpitations. Central and Peripheral Nervous System/Psychiatric: Delirium; mental depression; hallucinations (including visual and auditory); localized numbness; vivid dreams or nightmares; restlessness; anxiety; agitation; irritability; other behavioral changes; and drowsiness.

Dermatological: Angioneurotic edema; localized or generalized rash; hives; urticaria; contact dermatitis; pruritus; alopecia; and localized hypo or hyper pigmentation. Gastrointestinal: Anorexia and vomiting. Genitourinary: Difficult micturition; loss of libido; and decreased sexual activity.

Metabolic: Gynecomastia or breast enlargement and weight gain. Musculosk…

🆘 Overdosage ~2 min read

OVERDOSAGE Hypertension may develop early and may be followed by hypotension, bradycardia, respiratory depression, hypothermia, drowsiness, decreased or absent reflexes, weakness, irritability and miosis. The frequency of CNS depression may be higher in children than adults. Large overdoses may result in reversible cardiac conduction defects or dysrhythmias, apnea, coma and seizures.

Signs and symptoms of overdose generally occur within 30 minutes to two hours after exposure. As little as 0.1 mg of clonidine has produced signs of toxicity in children. If symptoms of poisoning occur following dermal exposure, remove all clonidine transdermal systems.

After their removal, the plasma clonidine levels will persist for about 8 hours, then decline slowly over a period of several days. Rare cases of clonidine transdermal system poisoning due to accidental or deliberate mouthing or ingestion of the patch have been reported, many of them involving children. There is no specific antidote for clonidine overdosage.

Ipecac syrup-induced vomiting and gastric lavage would not be expected to remove significant amounts of clonidine following dermal exposure. If the patch is ingested, whole bowel irrigation may be considered and the administration of activated charcoal and/or cathartic may be beneficial. Supportive care may include atropine sulfate for bradycardia, intravenous fluids and/or vasopressor agents for hypotension and vasodilators for hypertension.

Naloxone may be a useful adjunct for the management of clonidine-induced respiratory depression, hypotension and/or coma; blood pressure should be monitored since the administration of naloxone has occasionally resulted in paradoxical hypertension. Dialysis is not likely to significantly enhance the elimination of clonidine. The largest overdose reported to date, involved a 28-year old male who ingested 100 mg of clonidine hydrochloride powder.

This patient developed hypertension followed by hypotension, bradycardia, apnea, hallucinations, semicoma, and premature ventricular contractions. The patient fully recovered after intensive treatment. Plasma clonidine levels were 60 ng/mL after 1 hour, 190 ng/mL after 1.5 hours, 370 ng/mL after 2 hours, and 120 ng/mL after 5.5 and 6.5 hours.

In mice and rats, the oral LD 50 of clonidine is 206 and 465 mg/kg, respectively.

🧬 Clinical Pharmacology ~2 min read

CLINICAL PHARMACOLOGY Clonidine stimulates alpha-adrenoreceptors in the brain stem. This action results in reduced sympathetic outflow from the central nervous system and in decreases in peripheral resistance, renal vascular resistance, heart rate, and blood pressure. Renal blood flow and glomerular filtration rate remain essentially unchanged.

Normal postural reflexes are intact; therefore, orthostatic symptoms are mild and infrequent. Acute studies with clonidine hydrochloride in humans have demonstrated a moderate reduction (15% to 20%) of cardiac output in the supine position with no change in the peripheral resistance; at a 45° tilt there is a smaller reduction in cardiac output and a decrease of peripheral resistance. During long-term therapy, cardiac output tends to return to control values, while peripheral resistance remains decreased.

Slowing of the pulse rate has been observed in most patients given clonidine, but the drug does not alter normal hemodynamic responses to exercise. Tolerance to the antihypertensive effect may develop in some patients, necessitating a reevaluation of therapy. Other studies in patients have provided evidence of a reduction in plasma renin activity and in the excretion of aldosterone and catecholamines.

The exact relationship of these pharmacologic actions to the antihypertensive effect of clonidine has not been fully elucidated. Clonidine acutely stimulates the release of growth hormone in children as well as adults but does not produce a chronic elevation of growth hormone with long-term use. Pharmacokinetics Clonidine transdermal system delivers clonidine at an approximately constant rate for 7 days.

The absolute bioavailability of clonidine from the clonidine transdermal system dosage form is approximately 60%. Steady-state clonidine plasma levels are obtained within 3 days after transdermal application to the upper outer arm and increase linearly with increasing size of the transdermal patch. Mean steady-state plasma concentrations with the 3.33 cm 2 , 6.67 cm 2 , and 10.0 cm 2 systems are approximately 0.4 ng/mL, 0.8 ng/mL, and 1.1 ng/mL, respectively.

Similar clonidine steady-state concentrations are reached after application to the chest. Steady-state clonidine plasma levels remain constant after removal of one system and application of a new system of the same size. Following intravenous administration clonidine displays biphasic disposition with a distribution half-life of about 20 minutes and an elimination half-life ranging from 12 to 16 hours.

The half-life increases up to 41 hours in patients with severe impairment of renal function. Clonidine has a total clearance of 177 mL/min and a renal clearance of 102 mL/min. The apparent volume of distribution (V z ) of clonidine is 197 L (2.9 L/kg).

Clonidine crosses the placental barrier. It has been shown to cross the blood brain barrier in rats. Following oral administration, about 40% to 60% of the absorbed dose is recovered in the urine as unchanged drug within 24 hours.

About 50% of the absorbed dose is metabolized in the liver. After removal of the clonidine transdermal system, clonidine plasma concentrations decline slowly with a half-life of approximately 20 hours.

📦 How Supplied / Storage and Handling 87 words

HOW SUPPLIED Clonidine Transdermal System, USP is available as 0.1 mg/day, 0.2 mg/day and 0.3 mg/day of clonidine, USP and are supplied as 4 pouched systems and 4 adhesive covers per carton. See chart below. Programmed Delivery Clonidine in vivo Per Day Over 1 Week Clonidine Content Size Clonidine Transdermal System, USP NDC 0378-0871-99 0.1 mg 2.52 mg 3.33 cm 2 Clonidine Transdermal System, USP NDC 0378-0872-99 0.2 mg 5.04 mg 6.67 cm 2 Clonidine Transdermal System, USP NDC 0378-0873-99 0.3 mg 7.56 mg 10.0 cm 2

📦 Storage and Handling 22 words

STORAGE AND HANDLING Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.] Address medical inquiries to: 1-877-446-3679 (1-877-4-INFO-RX).

📋 Description ~2 min read

DESCRIPTION Clonidine transdermal system, USP is a transdermal system providing continuous systemic delivery of clonidine for 7 days at an approximately constant rate. Clonidine is a centrally acting alpha-agonist hypotensive agent. It is an imidazoline derivative with the chemical name 2-[(2,6-Dichlorophenyl)imino]imidazolidine and has the following chemical structure: Meets USP Drug Release Test 3.

System Structure and Components Clonidine transdermal system is a multi-layered film, 0.25 mm thick, containing clonidine as the active agent. The system areas are 3.33 cm 2 (0.1 mg/day), 6.67 cm 2 (0.2 mg/day), and 10.0 cm 2 (0.3 mg/day) and the amount of drug released is directly proportional to the area (see DESCRIPTION: Release Rate Concept ). The composition per unit area is the same for all three doses.

Proceeding from the visible surface towards the surface attached to the skin, there are three consecutive layers: 1) a backing layer of pigmented polyethylene and polyester film, 2) a solid matrix reservoir of clonidine, mineral oil, polyisobutylene, and colloidal silicon dioxide, 3) an adhesive formulation of clonidine, mineral oil, polyisobutylene, and colloidal silicon dioxide. Prior to use, a protective slit release liner of polyester that covers the adhesive formulation layer is removed. Clonidine transdermal systems are packaged with additional pieces of protective film above and below the system within each pouch.

These pieces of protective film are removed and discarded at the time of use. Cross Section of the System: Clonidine Cross Section Release Rate Concept Clonidine transdermal system is programmed to release clonidine at an approximately constant rate for 7 days. The energy for drug release is derived from the concentration gradient existing between the patch and the much lower concentration prevailing in the skin.

Clonidine flows in the direction of the lower concentration at a constant rate. Following system application to intact skin, clonidine in the adhesive formulation layer saturates the skin site below the system. Clonidine from the patch then begins to flow into the systemic circulation via the capillaries beneath the skin.

Therapeutic plasma clonidine levels are achieved 2 to 3 days after initial application of clonidine transdermal system. The 3.33, 6.67, and 10.0 cm 2 systems deliver 0.1, 0.2, and 0.3 mg of clonidine per day, respectively. To ensure constant release of drug for 7 days, the total drug content of the system is higher than the total amount of drug delivered.

Application of a new system to a fresh skin site at weekly intervals continuously maintains therapeutic plasma concentrations of clonidine. If the clonidine transdermal system is removed and not replaced with a new system, therapeutic plasma clonidine levels will persist for about 8 hours and then decline slowly over several days. Over this time period, blood pressure returns gradually to pretreatment levels.

Clonidine Structural Formula

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.