Mydayis

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

Applies to amphetamine / dextroamphetamine: oral capsule extended release, oral tablet

Along with its needed effects, amphetamine / dextroamphetamine 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 amphetamine / dextroamphetamine:

More common

• Bladder pain
• bloody or cloudy urine
• difficult, burning, or painful urination
• fast, pounding, or irregular heartbeat or pulse
• frequent urge to urinate
• lower back or side pain

Less common

• Cold or flu-like symptoms
• cough or hoarseness
• fever or chills

Incidence not known

• Blistering, peeling, or loosening of the skin
• chest pain or discomfort
• confusion
• dark-colored urine
• diarrhea
• difficulty breathing
• difficulty with speaking
• difficulty with swallowing
• dizziness
• double vision
• faintness
• headache
• inability to move the arms, legs, or facial muscles
• inability to speak
• itching, skin rash
• joint or muscle pain
• large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
• loss of bladder control
• muscle cramps or spasms
• muscle pain or stiffness
• muscle spasm or jerking of all extremities
• nausea
• pain or discomfort in the arms, jaw, back, or neck
• red skin lesions, often with a purple center
• red, irritated eyes
• seeing, hearing, or feeling things that are not there
• seizures
• slow speech
• sore throat
• sores, ulcers, or white spots in the mouth or on the lips
• sudden loss of consciousness
• sweating
• swelling of the feet or lower legs
• tightness in the chest
• uncontrolled repeated movements (tics)
• uncontrolled vocal outbursts
• unusual tiredness or weakness
• vomiting

Some side effects of amphetamine / dextroamphetamine 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

• Anxiety
• dry mouth
• lack or loss of strength
• stomach pain
• weight loss

Incidence not known

• Constipation
• decreased interest in sexual intercourse
• false or unusual sense of well-being
• inability to have or keep an erection
• loss in sexual ability, desire, drive, or performance
• twitching, twisting, uncontrolled repetitive movements of the tongue, lips, face, arms, or legs

Applies to amphetamine / dextroamphetamine: oral capsule extended release, oral tablet

Very common (10% or more): Appetite loss (up to 36%), weight loss (up to 10%)

Frequency not reported: Anorexia

Very common (10% or more): Dry mouth (up to 35%), abdominal pain (up to 14%)

Common (1% to 10%): Nausea, vomiting, diarrhea, dyspepsia

Frequency not reported: Unpleasant taste, constipation, other GI disturbances

Very common (10% or more): Transient blood pressure elevations (up to 35%)

Common (1% to 10%): Tachycardia, palpitation

Frequency not reported: Cardiomyopathy, myocardial infarction, Raynaud's phenomenon

Very common (10% or more): Insomnia (up to 27%), nervousness (up to 13%)

Common (1% to 10%): Emotional lability, agitation, anxiety

Frequency not reported: Psychotic episodes, irritability, euphoria, dysphoria, restlessness, depression, aggression, anger, logorrhea, dermatillomania

Very common (10% or more): Headache (up to 26%)

Common (1% to 10%): Somnolence, dizziness, twitching, speech disorder (e.g., stuttering, excessive speech)

Frequency not reported: Overstimulation, paresthesia/formication, dyskinesia, tremor, exacerbation of motor/phonic tics and Tourette's syndrome

Common (1% to 10%): Photosensitivity reaction, sweating

Frequency not reported: Urticaria, rash, alopecia, serious skin rashes (e.g., Stevens-Johnson Syndrome, toxic epidermal necrolysis)

Common (1% to 10%): Decreased libido, dysmenorrhea, impotence

Frequency not reported: Frequent or prolonged erections

Common (1% to 10%): Urinary tract infection

Common (1% to 10%): Fever, infection, accidental injury, asthenia/fatigue, tooth disorder (e.g., teeth clenching, tooth infection)

Frequency not reported: Sudden death, bruxism

Common (1% to 10%): Dyspnea

Frequency not reported: Hypersensitivity reactions (e.g., angioedema, anaphylaxis)

Frequency not reported: Blurred vision, mydriasis

Postmarketing reports: Rhabdomyolysis