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Review: Loratadine side effects

In this review, we analyze Loratadine side effects by the time on the drug, gender and age (0-60+) of the people who have side effects while taking Loratadine. The review is based on 9,754 people who have side effects while taking Loratadine from FDA and social media, and is updated regularly.

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What is Loratadine

Loratadine (latest outcomes from 10,982 users) has active ingredients of loratadine. It is often used in allergies.

Other drugs that have the same active ingredients (loratadine): Claritin Hives Relief, Claritin, Claritin Reditabs, Claritin Hives Relief Reditab, Alavert, Children's Claritin, Loratadine Redidose.

On Jan, 26, 2015: 9,754 people who reported to have side effects when taking Loratadine are studied


Most common side effects over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Headache (pain in head)PainSudden Cardiac DeathCoughHeadache (pain in head)DepressionDizzinessDyspnoea (difficult or laboured respiration)
DizzinessDysuria (painful or difficult urination)DeathAbdominal Pain UpperAnxietyTransposition Of The Great VesselsFatigue (feeling of tiredness)Pain
Dyspnoea (difficult or laboured respiration)Renal Pain (kidney pain)DepressionDyspnoea (difficult or laboured respiration)Emotional DistressAggressionVision - Night BlindnessNausea (feeling of having an urge to vomit)
Urticaria (rash of round, red welts on the skin that itch intensely)Nocturia (the need to get up in the night to urinate)Mastocytosis (an excessive number of apparently normal mast cells in the skin and, occasionally, in other organs)Bronchitis (inflammation of the mucous membrane in the bronchial tubes)InjuryLung Disorder (lung disease)Back InjuryVomiting
Loss Of ConsciousnessAbdominal RigidityPainCerebrovascular Accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)PainCongenital Aortic Atresia (congenital absence of the aortic orifice)Social Phobia (fear to go in social)Anxiety
Nausea (feeling of having an urge to vomit)DeathVenous Thrombosis Limb (blood clot that forms in a vein in the limb)Pancreatitis Nos (inflammation of pancreas)Nausea (feeling of having an urge to vomit)Drug Exposure During PregnancyLumbar Disc Lesion (disc damage of lumbar vertebrae)Fatigue (feeling of tiredness)
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)Dyspnoea (difficult or laboured respiration)Subdural Haematoma (blood collects between the skull and the surface of the brain)Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)Anhedonia (inability to experience pleasure from activities usually found enjoyable)Aspartate Aminotransferase IncreasedKidney StonesDizziness
Somnolence (a state of near-sleep, a strong desire for sleep)Lethargy (tiredness)Dysphagia (condition in which swallowing is difficult or painful)Myocardial Infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)Exhaustion, Fatigue, Lethargy, Tiredness, Weariness (feeling of tiredness)Hypoplastic Left Heart Syndrome (combination of several abnormalities of the heart and great blood vessels)Skin Blushing/flushing (a sudden reddening of the face, neck)Diarrhoea
VomitingAutoimmune HepatitisAnxietyPleuritic PainDeep Vein Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)Suicidal IdeationTinnitus (a ringing in the ears)Headache (pain in head)
Pyrexia (fever)Fatigue (feeling of tiredness)Abdominal Pain UpperPalpitations (feelings or sensations that your heart is pounding or racing)Pulmonary Embolism (blockage of the main artery of the lung)Nightmare (unpleasant dream)ConstipationPneumonia

Most common side effects by gender * :

Nausea (feeling of having an urge to vomit)Dyspnoea (difficult or laboured respiration)
Dyspnoea (difficult or laboured respiration)Nausea (feeling of having an urge to vomit)
PainDrug Ineffective
AnxietyFatigue (feeling of tiredness)
Headache (pain in head)Pyrexia (fever)
Fatigue (feeling of tiredness)Pain
Drug IneffectiveChest Pain

Most common side effects by age * :

Hypospadias (an abnormal condition in males in which the urethra opens on the under surface of the penis)Pyrexia (fever)Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)PainNausea (feeling of having an urge to vomit)Nausea (feeling of having an urge to vomit)Dyspnoea (difficult or laboured respiration)Dyspnoea (difficult or laboured respiration)
Premature BabyVomitingHeadache (pain in head)AnxietyAnxietyHeadache (pain in head)Nausea (feeling of having an urge to vomit)Nausea (feeling of having an urge to vomit)
Maternal Drugs Affecting Foetus (chemical affecting the baby before birth taken by mother)Somnolence (a state of near-sleep, a strong desire for sleep)DizzinessNausea (feeling of having an urge to vomit)Pulmonary Embolism (blockage of the main artery of the lung)Drug IneffectiveFatigue (feeling of tiredness)Dizziness
Foetal Growth Retardation (a baby in the womb fails to grow at the expected rate during the pregnancy)PneumoniaPainVomitingFatigue (feeling of tiredness)VomitingPainFall
Jaundice Neonatal (yellowing of skin in neonate)CoughEpilepsy (common and diverse set of chronic neurological disorders characterized by seizures)Cholecystitis Chronic (long lasting infection of gallbladder)PainDizzinessDizzinessAsthenia (weakness)
Drug Exposure During PregnancyDiarrhoeaNausea (feeling of having an urge to vomit)InjuryDyspnoea (difficult or laboured respiration)Chest PainPyrexia (fever)Drug Ineffective
Neonatal Apnoeic Attack (episodes where breathing stops temporarily in neonate)Grand Mal Convulsion (a type of generalized seizure that affects the entire brain)Cholecystitis Chronic (long lasting infection of gallbladder)Headache (pain in head)Headache (pain in head)Pyrexia (fever)AnxietyPain
Abdominal Pain UpperDyspnoea (difficult or laboured respiration)VomitingCholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)Pyrexia (fever)Fatigue (feeling of tiredness)VomitingPneumonia
Pulmonary Artery Atresia (lungs artery absent)AggressionAnxietyChest PainDizzinessHypertension (high blood pressure)DepressionDiarrhoea
Oxygen Saturation DecreasedAsthmaAbdominal PainPulmonary Embolism (blockage of the main artery of the lung)Deep Vein Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)CoughChest PainFatigue (feeling of tiredness)

* Some reports may have incomplete information.

Browse Loratadine side effects from A to Z:

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Comments from related studies:

  • From this study (3 days ago):

  • L4/L5 fusion 7/13
    Interferon alpha injections and riboviran and sovaldi pills for HepC 8-2014 to 10-2014. HepC free since treatment


  • From this study (2 weeks ago):

  • He has taken Claritin for about two months now. He can hardly eat without having stomach pain and nausea. I'm wondering if its from taking Claritin for so long. I notice when I take him off for a few days, he gets a little better but when I give it to him, he starts hurting the next day.


  • From this study (3 weeks ago):

  • recurring vertigo that lasts from an hour to a couple of days per episode


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  • Living with chronic pain while battling with psychological disorders. (1 response)
    I have had back problems since 2004. I have been on pain management since 2007. A year ago I was diagnosed with Fibromyalgia. Not only does fibromyalgia cause deep wide spread pain, it also makes me feel lethargic, fluish, and greatly effects my daily life. I also have some psychological conditions as well. Mostly due to a traumatic event experienced as a child.
  • Oxybutynin chloride and chest pain
    A urologist prescribed Vesicare (and Estrace cream) early in 2013 for urge incontinance. When hospitalized for cellulitis (never had it before) in May (2013), I took lots of I-V Clindamycin. The hospital had Ditropan on their formulary, and the urologist switched to it (it was cheaper)--and I continued taking Oxybutynin throughout the summer (2013).

    Before 2013, I had had rare episodes of chest pain (not proven angina) no more than once a year. While on Vesicare and Dipropan, the frequency of chest pain increased to once a month, then once a week, then twice a week, then every other day (by late summer). In July I had a treadmill-EKG (with radioisotope) in USA and my family-practice-physician said it was normal and that my chest pain is NOT heart-related. He took me off Indocin and I have since quit taking Meloxicam and aspirin (no NSAIDs now). I returned to where I live overseas in early August and continued to have chest pain with increasing frequency. In the city where I live, it is too hot in the summer, and too cold in the winter. I saw an American doctor (overseas) in mid-August and my heart rate was irregular (I've never been told THAT before). My blood pressure is usually perfect, but this time my diastolic BP was the lowest it's ever been (about 50). My EKG was said to be normal (except slow rate). My normal pulse is about 60. The doctor said the low diastolic blood pressure was my body's way of helping me "beat the heat," and she suggested I lower the dosage of Oxybutynin from 15 mg daily to 10 mg daily--at least until the summer heat abated. [She was concerned about possible synergistic effect of anti-histamine (Claritin) and anti-cholinergic (Oxybutynin).] Having no return of urologic symptoms (which were severe a few months ago), I have since lowered the dosage of Oxybutynin from 10 mg daily to 5 mg daily.

    I am 68 (had total thyroidectomy in 1978, 3 C-sections in the early 1980's, and two total knee replacement surgeries in 1998 and 2007). I had elevated anti-TPO in 2012 and a new dx of auto-immune thyroiditis early in 2013 (but 98% of my thyroid tissue was removed in 1978).

More reviews for: Loratadine

On eHealthMe, Loratadine (loratadine) is often used for allergies. Find out below the conditions Loratadine is used for, how effective it is, and any alternative drugs that you can use to treat those same conditions.

What is Loratadine used for and how effective is it:

Other drugs that are used to treat the same conditions:

Studies of common Loratadine drug interactions:

Browse Loratadine drug interactions with drugs from A to Z:

NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

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