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Kapvay

Generic Name: clonidine (oral) (KLOE ni deen)
Brand Names: Catapres, Duraclon, Kapvay
Kapvay (clonidine) is a prescription medicine used to treat Attention Deficit Hyperactivity Disorder (ADHD). Includes Kapvay side effects, interactions and indications.
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Drug Information:
Kapvay (clonidine) is a prescription medicine supplied as an extended-release tablet and is used to treat attention deficit hyperactivity disorder (ADHD). Your doctor may prescribe Kapvay alone or together with certain other ADHD medicines. Clonidine is not a central nervous system (CNS) stimulant. Kapvay may also be used for purposes not listed in this medication guide. Before you take Kapvay, tell your doctor if you have heart disease or severe coronary artery disease, a heart rhythm disorder, slow heartbeats, low blood pressure, a history of heart attack or stroke, kidney disease, or if you have ever had an allergic Reaction to a clonidine transdermal skin patch (Catapres TTS). Learn more

Kapvay Side Effects

Kapvay Side Effects

Note: This document contains side effect information about clonidine. Some of the dosage forms listed on this page may not apply to the brand name Kapvay.

In Summary

Common side effects of Kapvay include: drowsiness, fatigue, lethargy, sedated state, headache, and upper abdominal pain. Other side effects include: dizziness. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to clonidine: oral tablet, oral tablet extended release

Other dosage forms:

  • epidural solution
  • transdermal patch extended release

Along with its needed effects, clonidine (the active ingredient contained in Kapvay) 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 while taking clonidine:

Less common

  • Mental depression
  • swelling of the feet and lower legs

Rare

  • Anxiety
  • blistering, burning, crusting, dryness, or flaking of the skin
  • chest pain or discomfort
  • confusion as to time, place, or person
  • decreased urine output
  • dilated neck veins
  • drowsiness
  • dry mouth
  • fast, pounding, or irregular heartbeat or pulse
  • fever
  • general feeling of discomfort or illness
  • holding false beliefs that cannot be changed by fact
  • hyperventilation
  • irregular breathing
  • irritability
  • itching, scaling, severe redness, soreness, or swelling of the skin
  • large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • lightheadedness, dizziness, or fainting
  • mental depression
  • paleness or cold feeling in the fingertips and toes
  • pounding, slow heartbeat
  • problems in urination or increase in the amount of urine
  • raised red swellings on the skin, lips, tongue, or in the throat
  • restlessness
  • seeing or hearing things that are not there
  • shaking
  • shortness of breath
  • skin rash
  • swelling of the face, fingers, feet, or lower legs
  • tightness in the chest
  • tingling or pain in the fingers or toes when exposed to cold
  • trouble with sleeping
  • troubled breathing
  • unusual excitement, nervousness, or restlessness
  • unusual tiredness or weakness
  • vivid dreams or nightmares
  • weight gain
  • wheezing

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

Symptoms of overdose

  • Dizziness (extreme) or faintness
  • feeling cold
  • pinpoint pupils of the eyes
  • unusual tiredness or weakness (extreme)

Some side effects of clonidine 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

  • Constipation

Less common

  • Darkening of the skin
  • decreased sexual ability
  • dry, itching, or burning eyes
  • loss of appetite
  • nausea or vomiting

Rare

  • Blurred vision
  • decreased interest in sexual intercourse
  • hair loss or thinning of the hair
  • inability to have or keep an erection
  • leg cramps
  • loss in sexual ability, desire, drive, or performance
  • muscle or joint pain
  • pale skin
  • swelling of the breasts or breast soreness in both females and males
  • weakness

For Healthcare Professionals

Applies to clonidine: compounding powder, injectable solution, oral suspension extended release, oral tablet, oral tablet extended release, transdermal film extended release

Cardiovascular

Very common (10% or more): Hypotension (45%), orthostatic hypotension (32%)

Common (1% to 10%): Chest pain, tachycardia

Uncommon (0.1% to 1%): Sinus bradycardia, Raynaud's phenomenon, palpitations

Rare (0.01% to 0.1%): Atrioventricular block, palpitations, bradycardia, syncope, congestive heart failure, electrocardiographic abnormalities (i.e., sinus node arrest, high degree AV block), cerebrovascular accident

Frequency not reported: Bradyarrhythmia, hypertension, rebound hypertension

Dermatologic

Very common (10% or more): Contact dermatitis with the patch formulation (19%)

Common (1% to 10%): Sweating

Uncommon (0.1% to 1%): Pruritus, rash (localized or generalized), urticaria, erythema

Rare (0.01% to 0.1%): Alopecia, excoriation, burning

Very rare (less than 0.01%): Papules, throbbing, blanching, generalized macular rash, facial/tongue angioedema

Frequency not reported: Hives, localized hypo or hyper pigmentation

Endocrine

Rare (0.01% to 0.1%): Gynecomastia

Gastrointestinal

Very common (10% or more): Dry mouth (40%), upper abdominal pain (15%), nausea (13%), vomiting (10%)

Common (1% to 10%): Constipation, parotid gland pain

Uncommon (0.1% to 1%): Colonic pseudo-obstruction

Very rare (less than 0.01%): Parotitis

Genitourinary

Common (1% to 10%): Erectile dysfunction

Frequency not reported: Micturition difficulty, loss of libido, decreased sexual activity, nocturia, urinary retention

General

Most adverse effects are mild and diminish with continued therapy. The most frequent (which appear to be dose-related) are dry mouth (40%), drowsiness (33%), dizziness (16%), constipation (10%), and sedation (10%).

Hematologic

Rare (0.01% to 0.1%): Peripheral blood flow disturbance, thrombocytopenia

Hepatic

Frequency not reported: Mild transient abnormalities of liver function tests, hepatitis

Metabolic

Rare (0.01% to 0.1%): Blood glucose increased, serum creatine phosphokinase increased

Frequency not reported: Weight gain, anorexia

Musculoskeletal

Frequency not reported: Muscle pain, joint pain, leg cramps

Nervous system

Very common (10% or more): Drowsiness (33%), dizziness (16%), somnolence (13%), sedation (10%)

Common (1% to 10%): Headache

Uncommon (0.1% to 1%): Paresthesia

Frequency not reported: Headache, localized numbness

Ocular

Rare (0.01% to 0.1%): Lacrimation decreased (dry eyes)

Frequency not reported: Accommodation disorder, ocular burning, vision blurred

Other

Common (1% to 10%): Fatigue, tinnitus

Uncommon (0.1% to 1%): Malaise

Frequency not reported: Fever, pallor, weakness, positive Coombs' test, increased sensitivity to alcohol

Psychiatric

Very common (10% or more): Confusion (13%)

Common (1% to 10%): Depression, tearfulness, sleep disorder, hallucinations (both visual and auditory), nervousness, agitation

Uncommon (0.1% to 1%):

Rare (0.01% to 0.1%): Delusional perception, nightmare

Frequency not reported: Libido decreased, restlessness, anxiety, irritability, behavior changes

Respiratory

Common (1% to 10%): Hypoventilation

Rare (0.01% to 0.1%): Nasal dryness

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Kapvay (www.drugs.com/kapvay.html).