Synagis and Claritin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Synagis (palivizumab) and Claritin (loratadine). Common drug interactions include nasopharyngitis among females and deep vein thrombosis among males.

The phase IV clinical study analyzes what interactions people have when they take Synagis and Claritin. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

What is Synagis?

Synagis has active ingredients of palivizumab. eHealthMe is studying from 19,114 Synagis users. Check the latest studies of Synagis.

What is Claritin?

Claritin has active ingredients of loratadine. It is often used in allergies. eHealthMe is studying from 77,315 Claritin users. Check the latest studies of Claritin.

On Jul, 16, 2026

14 people who take Synagis and Claritin together, and have interactions are studied.

What are the common drug interactions of Synagis and Claritin, by gender? *:

female:

Nasopharyngitis (inflammation of the nasopharynx)
Adverse drug reaction
Faeces discoloured
Upper respiratory tract infection
Gastric disorder (disease of stomach)
Pyrexia (fever)
Respiratory syncytial virus infection (viral disease of respiratory system)
Bacteraemia (presence of bacteria in the blood)
Chills (felling of cold)
Haematocrit decreased

male:

Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
Cerebrovascular 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)
Cholecystitis (infection of gallbladder)
Cholecystitis acute (rapid infection of gallbladder)
Cholecystitis chronic (long lasting infection of gallbladder)
Contusion (a type of hematoma of tissue in which capillaries)
Dyspnoea (difficult or laboured respiration)
Emotional distress
Fatigue (feeling of tiredness)

What are the common drug interactions of Synagis and Claritin, by age (0-1 to 60+)? *:

0-1:

Nasopharyngitis (inflammation of the nasopharynx)
Upper respiratory tract infection
Gastric disorder (disease of stomach)
Rhinorrhoea (watery mucus discharge from the nose)
Bacteraemia (presence of bacteria in the blood)
Haematocrit decreased
Haemoglobin decreased
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels)
Pharyngitis (inflammation of the pharynx, causing a sore throat)
Productive cough

2-9:

Upper respiratory tract infection

10-19:

Upper limb fracture

20-29:

n/a

30-39:

n/a

40-49:

Chills (felling of cold)
Headache (pain in head)
Myalgia (muscle pain)
Nausea (feeling of having an urge to vomit)
Vomiting

50-59:

n/a

60+:

n/a

What are the existing conditions these people have? *

Premenstrual Syndrome: 2 people, 14.29%
Lung Disorder (lung disease): 2 people, 14.29%
Cystic Fibrosis (disease of the secretary glands): 2 people, 14.29%
Trisomy 18 (a genetic disorder caused by the presence of all or part of an extra 18th chromosome): 1 person, 7.14%
Respiratory Syncytial Virus Infection (viral disease of respiratory system): 1 person, 7.14%
Respiratory Acidosis (respiratory failure or ventilatory failure, causes the ph of blood and other bodily fluids to decrease): 1 person, 7.14%
Premenstrual Dysphoric Disorder: 1 person, 7.14%
Polycystic Ovary Disease (cysts in the ovaries that occurs when the follicle stops developing): 1 person, 7.14%
Laryngeal Nerve Damage: 1 person, 7.14%
Fluid Retention (an abnormal accumulation of fluid in the blood): 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

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