78 side effects

Side effect	Frequency	FDA	Drugs.com	WebMD	Mayo Clinic	GoodRx	Healio.com	Xyzal.com	Wyndly.com	Buzzrx.com	Healthline
Agitation	uncommon	—	—	Agitation	agitation	—	Agitation	—	Agitation	—	—
Aggressive behavior	uncommon	—	—	Aggressive behavior	attack, assault, or force	—	Aggressive behavior	—	Agitation	—	—
Allergic reactions	rare	—	hives	Allergic reactions	—	Allergic reactions	Allergic reactions	—	Severe allergic reactions	Allergic reactions	—
Anaphylaxis	rare	—	swelling of face, lips, tongue, or throat	Anaphylaxis	—	—	Anaphylaxis	—	Severe allergic reactions	—	—
Anxiety	uncommon	—	—	Anxiety	anxiety	—	Anxiety	—	Anxiety	—	—
Arthralgia	—	—	—	Joint pain	joint or muscle pain	—	Arthralgia	—	—	—	—
Blurred vision	rare	—	—	Blurred vision	blurred or loss of vision	—	Blurred vision	—	Vision problems	—	—
Bloody stools	—	—	—	—	bloody, cloudy, or dark urine	—	—	—	—	—	—
Breathing problems	common	—	difficulty breathing	Breathing problems	difficult or labored breathing	—	Dyspnea	—	Difficulty breathing	—	—
Chills	—	—	—	—	chills	—	—	—	—	—	—
Constipation	common	—	constipation	Constipation	constipation	Constipation	Constipation	—	—	—	—
Cough	common	—	cough	Cough	cough	Cough	Cough	—	—	—	cough
Depression	uncommon	—	—	Depression	depression	—	Depression	—	Depression	—	—
Diarrhea	common	—	diarrhea	Diarrhea	diarrhea	Diarrhea or vomiting	Diarrhea	—	—	—	diarrhea
Difficulty breathing	common	—	difficulty breathing	Breathing problems	difficult or labored breathing	—	Dyspnea	—	Difficulty breathing	—	—
Difficulty concentrating	—	—	—	—	—	—	—	increased difficulty concentrating	difficulty concentrating	—	—
Difficulty urinating	rare	—	painful or difficult urination	Urinary retention	difficulty in passing urine (dribbling)	Trouble urinating	Urinary retention	—	Difficulty urinating or painful urination	Problems urinating	—
Dizziness	—	—	dizziness	Dizziness	dizziness, fainting, or lightheadedness when getting up suddenly from a lying or sitting position	—	Dizziness	dizziness	Dizziness	—	dizziness
Drowsiness	common	pruritus	drowsiness	Drowsiness	drowsiness	Drowsiness	Drowsiness	drowsiness	Drowsiness	Drowsiness	drowsiness
Dry mouth	common	—	dry mouth	Dry mouth	dry mouth	Dry mouth	Xerostomia	—	Dry mouth	—	dry mouth
Ear infection	—	—	ear infection	—	—	—	—	—	—	—	—
Ear pain	—	—	ear pain or full feeling	—	—	—	—	—	—	—	—
Edema	common	—	swelling of face, lips, tongue, or throat	Swelling of the face	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Fainting	common	—	—	Fainting	dizziness, fainting, or lightheadedness when getting up suddenly from a lying or sitting position	—	Syncope	—	Severe dizziness or fainting	—	—
Fatigue	common	—	tiredness	General tiredness and weakness	general tiredness and weakness	Fatigue	Fatigue	—	Fatigue	—	excessive tiredness
Fever	common	—	fever	Fever	fever	Fever	Fever	—	—	—	fever
General weakness	—	—	—	General weakness	general tiredness and weakness	—	General weakness	—	—	—	—
Hallucinations	—	—	—	Hallucinations	seeing, hearing, or feeling things that are not there	—	Hallucinations	—	—	—	—
Headache	—	—	—	—	headache	—	—	—	—	—	—
Hives	—	—	hives	Hives	hives or welts, itching, skin rash	—	Urticaria	—	—	—	hives
Hyperactivity	—	—	—	—	—	—	—	—	hyperactivity	—	—
Hypotension	—	—	—	—	—	—	Hypotension	—	—	—	—
Increased appetite	—	—	—	—	—	—	Increased appetite	—	—	—	—
Insomnia	—	—	—	—	—	—	Insomnia	—	sleep disturbances	—	—
Itching	rare	pruritus	hives	Itching	hives or welts, itching, skin rash	—	Pruritus of skin	pruritus	—	—	itching
Jaundice	rare	—	—	—	—	—	—	—	Yellowing of the skin or eyes (jaundice)	—	—
Joint pain	—	—	—	Joint pain	joint or muscle pain	—	Arthralgia	—	—	—	—
Kidney problems	—	—	—	—	—	—	Glomerulonephritis	—	—	—	—
Lightheadedness	—	—	lightheaded feeling	Lightheadedness	dizziness, fainting, or lightheadedness when getting up suddenly from a lying or sitting position	—	—	—	Lightheadedness	—	lightheadedness
Liver damage	rare	—	—	—	—	Liver damage	Hepatitis	—	—	—	—
Mood changes	uncommon	—	—	—	—	Mood or behavior changes	—	—	Mood changes	—	—
Motor tic disorder	—	—	—	—	—	—	Motor tic disorder	—	—	—	—
Muscle trembling	—	—	—	—	muscle trembling, twitching, jerking, or stiffness	—	Myoclonus	—	—	—	—
Myalgia	common	—	—	—	—	—	Myalgia	—	—	—	—
Nausea	common	—	nausea	Nausea	nausea	—	Nausea	—	Persistent nausea or vomiting	—	—
Nervousness	—	—	—	Nervousness	nervousness	—	Nervousness	—	Nervousness	—	—
Nosebleed	common	—	nosebleed	Nosebleed	nosebleed	Nosebleeds	Epistaxis	—	—	—	nosebleed
Paresthesia	—	—	—	—	—	—	Paresthesia	—	—	—	—
Pruritus	rare	pruritus	hives	Itching	hives or welts, itching, skin rash	—	Pruritus of skin	pruritus	—	—	itching
Rash	—	—	hives	Rash	hives or welts, itching, skin rash	—	Skin rash	—	—	—	rash
Rebound congestion	—	—	—	—	—	—	—	—	rebound congestion	—	—
Restlessness	—	—	—	Restlessness	restlessness	—	—	—	Restlessness	—	—
Seizures	—	—	—	Seizures	seizures	—	Seizure disorder	—	—	—	—
Severe allergic reactions	rare	—	swelling of face, lips, tongue, or throat	Severe allergic reactions	—	Severe allergic reactions	Anaphylaxis	—	Severe allergic reactions	—	—
Severe dizziness	rare	—	—	Severe dizziness	—	Severe drowsiness	—	—	Severe dizziness or fainting	—	—
Severe itching	rare	severe itching	—	Severe itching	—	Severe itching	—	—	—	—	—
Sinus pain	—	—	sinus pain	Sinus pain	—	—	—	—	—	—	—
Skin rash	—	—	hives	Rash	hives or welts, itching, skin rash	—	Skin rash	—	—	—	rash
Sleep disturbances	—	—	—	—	—	—	Insomnia	—	sleep disturbances	—	—
Sore throat	common	—	sore throat	Sore throat	sore throat	Sore throat	Pharyngitis	—	—	—	sore throat
Stomach cramps	—	—	—	—	stomach cramps	—	—	—	—	—	—
Stomach pain	—	—	—	Stomach pain	stomach pain	—	—	—	—	—	stomach pain
Swelling of face	common	—	swelling of face, lips, tongue, or throat	Swelling of the face	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Swelling of lips	common	—	swelling of face, lips, tongue, or throat	Swelling of the lips	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Swelling of mouth	common	—	swelling of face, lips, tongue, or throat	Swelling of the mouth	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Swelling of throat	common	—	swelling of face, lips, tongue, or throat	Swelling of the throat	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Swelling of tongue	common	—	swelling of face, lips, tongue, or throat	Swelling of the tongue	puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue	—	Edema	—	Swelling of the face, lips, or throat	—	swelling of the feet, ankles, lower legs, arms, or hands
Syncope	common	—	—	Fainting	dizziness, fainting, or lightheadedness when getting up suddenly from a lying or sitting position	—	Syncope	—	Severe dizziness or fainting	—	—
Tachycardia	rare	—	—	—	—	—	Tachycardia	—	Rapid heartbeat	—	—
Tiredness	common	—	tiredness	Tiredness	general tiredness and weakness	—	Fatigue	—	—	—	excessive tiredness
Tremor	common	—	—	—	—	—	Tremor	—	—	—	—
Trouble swallowing	—	—	trouble swallowing	Trouble swallowing	difficulty with swallowing or speaking	Trouble swallowing	—	—	—	—	—
Urinary retention	rare	—	painful or difficult urination	Urinary retention	difficulty in passing urine (dribbling)	Trouble urinating	Urinary retention	—	Difficulty urinating or painful urination	Problems urinating	—
Urticaria	—	—	hives	Hives	hives or welts, itching, skin rash	—	Urticaria	—	—	—	hives
Vomiting	common	—	vomiting	Vomiting	vomiting	Diarrhea or vomiting	Vomiting	—	Persistent nausea or vomiting	—	vomiting
Weakness	common	—	—	Weakness	general tiredness and weakness	—	General weakness	—	Unusual weakness or numbness	—	—
Weight gain	—	—	weight gain	Weight gain	—	Weight gain	Weight gain	—	—	—	—
Wheezing	—	—	wheezing	Wheezing	—	—	—	—	—	—	—

Demographic risk groups

Group	Risk	Sources
patients	severe itching	FDA
children 2 years and older	allergic reactions	FDA
patients 6 months and older	chronic hives	FDA
children	Behavioral changes or agitation	Drugs.com, WebMD, GoodRx, Xyzal.com, Wyndly.com
children under 12 years old with kidney disease	should not take levocetirizine	Drugs.com
children under 6 months old	not approved for use	Drugs.com
pregnant women	Unknown effects on pregnancy	Drugs.com, WebMD, Buzzrx.com
breastfeeding women	Unknown effects on breast milk	Drugs.com, WebMD, Buzzrx.com
people with liver disease	tell doctor	Drugs.com
pediatric patients 6 months to 2 years	dose not exceeded	Drugs.com
pediatric patients 6 months to 12 years	dose not exceeded	Drugs.com
patients with kidney problems	higher risk	WebMD
Elderly	higher risk of side effects	WebMD, Healio.com
People 65 and older	Greater risk of some side effects	WebMD
People with kidney problems	Increased risk of side effects	WebMD, GoodRx
Children ages 6 to 12	more common side effects	GoodRx
Children ages 1 to 5	more common side effects	GoodRx
People taking Xyzal daily for a long period of time	Severe itching	GoodRx
kidney problems	higher risk of side effects	GoodRx
Patients with chronic kidney disease	Higher risk of adverse effects	Healio.com
pregnant	fetal/neonatal adverse outcomes	Healio.com, Healthline
lactating	reduced breastmilk supply	Healio.com
pediatric	not indicated	Healio.com
adults and children from 12 to 64 years of age	standard dosage	Xyzal.com
pregnant or nursing women	consult with a physician before taking any medication	Xyzal.com
kidney disease	history of kidney disease	Wyndly.com, Healthline
liver disease	history of liver disease	Wyndly.com, Healthline
pregnancy		Wyndly.com
breastfeeding	shouldn't breastfeed	Wyndly.com, Healthline
people who consume alcohol	higher risk of drowsiness	Buzzrx.com
patients with spinal cord lesion or prostate problems	problems urinating	Buzzrx.com
people with end-stage kidney disease	unknown	Buzzrx.com