COMMON side effects
If experienced, these tend to have a Severe expression
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If experienced, these tend to have a Less Severe expression
- drowsiness
- dizziness
- nausea
- nervousness
- difficulty sleeping
- vomiting
- fast heartbeat
INFREQUENT side effects
If experienced, these tend to have a Severe expression
- confusion
- over excitement
- low energy and weakness
- gastroesophageal reflux disease
If experienced, these tend to have a Less Severe expression
- nightmares
- constipation
- fainting
- sensation of spinning or whirling
- difficulty sleeping
- headache
- nausea
- vomiting
- nervousness
- irritability
- anxious feelings
- decreased appetite
- stomach cramps
- high blood pressure
- dry mouth
- dizziness
- excessive sweating
- muscle tremors
- loss of skin color
- throat dryness
- heart throbbing or pounding
- difficult or painful urination
- generalized weakness
RARE side effects
If experienced, these tend to have a Severe expression
- rickets
- megaloblastic anemia
- very low levels of granulocytes, a type of white blood cell
- mental problems
- slow heartbeat
- low blood pressure
- a feeling of throat tightness
- damage to the liver and inflammation
- inflammation of the skin due to an allergy
- a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
- skin rash with sloughing
- hives
- decreased calcification or density of bone
- decreased alertness or consciousness
- memory loss
- hallucinations
- a skin rash
- apnea, a breathing interruption
- wheezing
- trouble breathing
- a significant type of allergic reaction called anaphylaxis
- a type of allergic reaction called angioedema
- a hypersensitivity reaction to a drug
- slow and shallow breathing
- accidental falls
- a disorder with excess antidiuretic hormone called syndrome of inappropriate antidiuretic hormone
- extra heartbeats
- sinus tachycardia, a type of fast heart rate
- seizures
- bloody vomit
- mental problems from taking the drug
- ventricular premature beats
- abnormal heart rhythm
- a stroke
- chest pain
- paradoxical bronchospasm
If experienced, these tend to have a Less Severe expression
- addiction to a drug
- agitation
- hyperactive behavior
- loss of muscle coordination
- complex sleep behaviors like eating or driving while asleep
- problems thinking clearly
- dizziness
- muscle twitching
- temporary redness of face and neck
- heart throbbing or pounding
- an increased need to urinate often
- irritation of the stomach or intestines
- anxious feelings