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Loratadine Somnolence Side Effects

Loratadine Somnolence Side Effect Reports


The following Loratadine Somnolence side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Somnolence, can occur, and what you can do about them.

A side effect could appear soon after you start Loratadine or it might take time to develop.



Overdose, Somnolence, Abdominal Discomfort, Dry Mouth, Agitation

This Somnolence side effect was reported by a consumer or non-health professional from AU. A 5-year-old patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Loratadine (dosage: 25 Mg Not 2.5mg, Systemic), which was started on NS. Concurrently used drugs: NA. When starting to take Loratadine the consumer reported the following symptoms:
  • Overdose
  • Somnolence
  • Abdominal Discomfort
  • Dry Mouth
  • Agitation
The patient was hospitalized. These side effects may potentially be related to Loratadine.
Somnolence, Accidental Overdose

This Somnolence Loratadine side effect was reported by a consumer or non-health professional from AU on Jul 22, 2013. A Female , child 4 years of age, was treated with Loratadine. The patient presented the following health conditions:
  • Somnolence
  • Accidental Overdose
. Loratadine dosage: 20 Mg, Unk. Additional drugs used at the same time:
  • Hyoscine (Half A Tab)
The patient was hospitalized.
Accidental Overdose, Somnolence

This is a Loratadine side effect report of a 2-year-old patient (weight:NA) from AU, suffering from the following symptoms/conditions: NA, who was treated with Loratadine (dosage:9 Df, Unk, start time: Feb 07, 2013), combined with: NA., and developed a serious reaction and a Somnolence side effect. The patient presented with:
  • Accidental Overdose
  • Somnolence
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Loratadine treatment in patients suffering from NA, resulting in Somnolence.

Hypertension, Accidental Overdose, Tachyarrhythmia, Nausea, Vomiting, Somnolence, Headache

A 2-year-old female patient (weight: NA) from AU with the following symptoms: NA started Loratadine treatment (dosage: 6 Df) on Feb 15, 2010. Soon after starting Loratadine treatment, the consumer experienced several side effects, including:
  • Hypertension
  • Accidental Overdose
  • Tachyarrhythmia
  • Nausea
  • Vomiting
  • Somnolence
  • Headache
. Concurrently used drugs: NA.The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Loratadine side effects, such as Somnolence.
Visual Impairment, Somnolence, Impaired Driving Ability, Headache, Dyspnoea, Confusional State, Feeling Abnormal

A female patient from US was prescribed and started Loratadine on May 22, 2013. Patient felt the following Loratadine side effects: visual impairment, somnolence, impaired driving ability, headache, dyspnoea, confusional state, feeling abnormal Additional patient health information: Female , weighting 235.0 lb, The consumer reported the following symptoms: was diagnosed with and. Loratadine dosage: NA. Concurrently used drugs:
  • Naproxen
  • Fluticasone (2 Sprays Once A Day)
  • Ferrous Sulfate
Cold Sweat, Nausea, Somnolence, Dizziness, Tremor, Product Outer Packaging Issue, Product Label Issue, Product Substitution Issue

This report suggests a potential Loratadine And Pseudoephedrine Somnolence side effect(s) that can have serious consequences. A 43-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): nasopharyngitis and used Loratadine And Pseudoephedrine (dosage: NA) starting Feb 15, 2013. Soon after starting Loratadine And Pseudoephedrine the patient began experiencing various side effects, including:
  • Cold Sweat
  • Nausea
  • Somnolence
  • Dizziness
  • Tremor
  • Product Outer Packaging Issue
  • Product Label Issue
  • Product Substitution Issue
Drugs used concurrently:NA. Although Loratadine And Pseudoephedrine demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Somnolence, may still occur.
Overdose, Somnolence, Hyperpyrexia, Myoclonus, Serotonin Syndrome, Chromaturia, Blood Creatine Phosphokinase Increased

An adverse event was reported by a pharmacist on Oct 03, 2012 by a male taking Loratadine (dosage: Unk, Unk) was diagnosed with and. Location: GB , 45 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Loratadine side effects: overdose, somnolence, hyperpyrexia, myoclonus, serotonin syndrome, chromaturia, blood creatine phosphokinase increased. Additional medications/treatments:
Associated medications used:
  • Dihydrocodeine (Unk, Unk)
  • Mirtazapine (Unk, Unk)
  • Pregabalin (Unk, Unk)
The patient was hospitalized.
Dizziness, Somnolence, Fall

This Somnolence problem was reported by a consumer or non-health professional from US. A 14-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Aug 21, 2012 a consumer started treatment with Loratadine (dosage: \). The following drugs/medications were being taken at the same time: NA. When commencing Loratadine, the patient experienced the following unwanted symptoms /side effects:
  • Dizziness
  • Somnolence
  • Fall
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Somnolence, may become evident only after a product is in use by the general population.
Activities Of Daily Living Impaired, Somnolence, Dizziness

This is a Loratadine side effect report of a 21-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: seasonal allergy,schizophrenia,prophylaxis,asthma and was treated with Loratadine (dosage: NA) starting May 02, 2012. Concurrently used drugs:
  • Seroquel (Cutting Half)
  • Albuterol Rescue Inhaler (As Needed)
  • Asmanex Twisthaler (220 Mcg 2 Puff Daily)
  • Nasonex (1 Puff Pr Nostril Daily)
  • Allergy Injection Shots (1 Shot Every 4 Weeks)
Soon after that, the consumer experienced the following of symptoms:
  • Activities Of Daily Living Impaired
  • Somnolence
  • Dizziness
This opens a possibility that Loratadine could cause Somnolence and that some patients may be more susceptible.
Malaise, Thinking Abnormal, Feeling Abnormal, Dyskinesia, Somnolence

This Somnolence side effect was reported by a consumer or non-health professional from UNITED STATES on Jun 05, 2012. A female patient from UNITED STATES , 25 years of age, weighting 150.0 lb, was treated with Loratadine. Directly after treatment started, patient experienced the unwanted or unexpected Loratadine side effects: malaise, thinking abnormal, feeling abnormal, dyskinesia, somnolence. Loratadine dosage: NA.
Associated medications used:
  • Hydrocodone Bitartrate + Acetaminophen (Take 2 Tablets Every 5 To 6 Hours Orally)
  • Hydrocodone Bitartrate + Acetaminophen (Take 2 Tablets Every 5 To 6 Hours Orally)
  • Metformin Hcl
  • Lisinopril And Hydrochlorothiazide
These side effects may potentially be related to Loratadine.
Vomiting, Somnolence

This Somnolence side effect was reported by a consumer or non-health professional from US. A 38-year-old patient (weight:NA) experienced the following symptoms/conditions: seasonal allergy. The patient was prescribed Loratadine 10 Mg 612 (dosage: 10 Mg, Qd), which was started on Oct 16, 2011. Concurrently used drugs: NA. When starting to take Loratadine 10 Mg 612 the consumer reported the following symptoms:
  • Vomiting
  • Somnolence
These side effects may potentially be related to Loratadine 10 Mg 612.
Loss Of Consciousness, Rash, Dizziness, Eye Movement Disorder, Nausea, Somnolence, Tremor

This Somnolence Loratadine side effect was reported by a consumer or non-health professional from UNITED STATES on Dec 14, 2011. A male , 23 years of age, was diagnosed with and was treated with Loratadine. The patient presented the following health conditions:
  • Loss Of Consciousness
  • Rash
  • Dizziness
  • Eye Movement Disorder
  • Nausea
  • Somnolence
  • Tremor
. Loratadine dosage: NA. Additional drugs used at the same time:
  • Mucinex Fast Max Adult Cold Flu Sore Throat
Somnolence, Vomiting

This is a Loratadine side effect report of a patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: seasonal allergy, who was treated with Loratadine (dosage:10 Mg, Qd, start time: Oct 16, 2011), combined with: NA., and developed a serious reaction and a Somnolence side effect. The patient presented with:
  • Somnolence
  • Vomiting
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Loratadine treatment in patients suffering from seasonal allergy, resulting in Somnolence.
Mental Impairment, Amnesia, Fatigue, Anxiety, Sleep Disorder, Insomnia, Weight Increased, Somnolence, Thyroid Disorder

A 37-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: multiple allergies,sinus headache started Loratadine treatment (dosage: 10 Mg) on May 15, 2011. Soon after starting Loratadine treatment, the consumer experienced several side effects, including:
  • Mental Impairment
  • Amnesia
  • Fatigue
  • Anxiety
  • Sleep Disorder
  • Insomnia
  • Weight Increased
  • Somnolence
  • Thyroid Disorder
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Loratadine side effects, such as Somnolence.
Cerebrovascular Accident, Anxiety, Suicidal Ideation, Somnolence, Rhinorrhoea, Therapeutic Response Decreased

A patient from UNITED STATES was prescribed and started Loratadine on Sep 27, 2011. After Loratadine was administered, patient encountered several Loratadine side effects: cerebrovascular accident, anxiety, suicidal ideation, somnolence, rhinorrhoea, therapeutic response decreased Additional patient health information: male , 41 years of age, The consumer reported the following symptoms: . Loratadine dosage: 10 Mg, Qd. Concurrently used drugs:
  • Trileptal (Unk Ukn, Unk)
  • Nexium (40 Mg, Qd)
  • Oxcarbazepine (Unk Ukn, Unk)
The patient was hospitalized.
Rash Erythematous, Somnolence

This report suggests a potential Loratadine Somnolence side effect(s) that can have serious consequences. A patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): rhinorrhoea,multiple allergies and used Loratadine (dosage: 10 Mg) starting Sep 14, 2011. Soon after starting Loratadine the patient began experiencing various side effects, including:
  • Rash Erythematous
  • Somnolence
Drugs used concurrently:NA. Although Loratadine demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Somnolence, may still occur.
Lethargy, Fatigue, Somnolence

An adverse event was reported by a health professional on Aug 03, 2011 by a Female taking Loratadine (dosage: NA) . Location: UNITED KINGDOM , 43 years of age, weighting 103.6 lb, patient began experiencing various side effects, including: Patient felt the following Loratadine side effects: lethargy, fatigue, somnolence. Additional medications/treatments:
Multiple prescriptions taken:
  • Co-codamol (panadeine Co)
  • Metronidazole
  • Sertraline Hydrochloride
  • Hyoscine Butylbromide (hysocine Butylbromide)
  • Kliofem(kliogest /00686201/)
  • Levothyroxine Sodium
  • Mebeverine Hydrochloride(mebverine Hydrochloride)
  • Proguanil (proguanil)
Product Substitution Issue, Somnolence

This Somnolence problem was reported by a health professional from UNITED STATES. A 58-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): hypersensitivity.On May 04, 2011 a consumer started treatment with Loratadine (dosage: 10 Mg. (1 Tab) Once Po). The following drugs/medications were being taken at the same time: NA. When commencing Loratadine, the patient experienced the following unwanted symptoms /side effects:
  • Product Substitution Issue
  • Somnolence
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Somnolence, may become evident only after a product is in use by the general population.
Heart Rate Increased, Tremor, Somnolence, Pyrexia

This is a Loratadine side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: rhinorrhoea and was treated with Loratadine (dosage: 1 Teaspoon Every 24 Hours Po) starting Feb 05, 2011. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Heart Rate Increased
  • Tremor
  • Somnolence
  • Pyrexia
This opens a possibility that Loratadine could cause Somnolence and that some female patients may be more susceptible.
Somnolence, Activities Of Daily Living Impaired

This Somnolence side effect was reported by a health professional from CROATIA (local name: Hrvatska) on Jan 10, 2011. A female patient from CROATIA (local name: Hrvatska) , 31 years of age, was diagnosed with and was treated with Loratadine. Patient felt the following Loratadine side effects: somnolence, activities of daily living impaired. Loratadine dosage: 10 Mg; Qd; Po.
Multiple prescriptions taken:
  • Yasmin
  • Saridon /00048501/
These side effects may potentially be related to Loratadine.

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Loratadine Somnolence Causes and Reviews


We are sorry, but no medical information on this topic currently exists in our database. Our articles are updated often, please revisit soon.


Loratadine Somnolence Reviews

Sat, 25 Sep 2010

my son experienced nightmares, several night wakenings, disorientation, restlessness, night sweats and a few days after stopping the medication had shortness of breath after exercising (with no previous asthmatic experiences)

Tue, 09 Aug 2011

I was taking the Loratadine 24 hr for about 4 months and past 3 months kept losing a lot of hair. Found bald spot few days ago and doc says alopecia areata. I saw a few postings on the internet of a correlation and wanted to know it anyone else has had that experience?

Tue, 13 Sep 2011

can this medicine cause you to have a very fast heart rate?

Sun, 15 Nov 2009
is 30mg too much in 24 hours?? is medical advice needed
Sat, 13 Feb 2010
can my one year old take Loratadine
Fri, 19 Mar 2010
can you take tylenol right after taking a Loratadine?
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Loratadine Side Effects

Dizziness (40)
Accidental Overdose (37)
Convulsion (37)
Dyspnoea (34)
Somnolence (31)
Headache (28)
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Nausea (23)
Vomiting (23)
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Rash (14)
Overdose (14)
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Vision Blurred (12)
Confusional State (12)
Cough (12)
Abortion Spontaneous (11)
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