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

Summary:

Drug interactions are reported among people who take Claritin (loratadine) and Corgard (nadolol). Common drug interactions include bacterial infection among females and dizziness among males.

The phase IV clinical study analyzes what interactions people have when they take Claritin and Corgard. It is created by eHealthMe based on reports of 57 people who take the same drugs from the FDA, and is updated regularly.

What is Claritin?

Claritin has active ingredients of loratadine. It is often used in allergies. eHealthMe is studying from 77,316 Claritin users. Check the latest studies of Claritin.

What is Corgard?

Corgard has active ingredients of nadolol. It is often used in high blood pressure. eHealthMe is studying from 3,342 Corgard users. Check the latest studies of Corgard.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 16, 2026

57 people who take Claritin and Corgard together, and have interactions are studied.

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

female:

Bacterial infection
Benign neoplasm of thyroid gland (benign (non-cancerous) tumours of the thyroid gland)
Body temperature increased
Bone density decreased
Breast calcifications (deposits of calcium that can be seen on a mammogram of the breast)
Breast cancer
Breast cancer in situ
Breast fibrosis (the thickening and scarring of connective tissue, usually as a result of injury in breast)
Breast hyperplasia (accumulation of abnormal cells in a breast duct)
Breast mass

male:

Dizziness
Insomnia (sleeplessness)
Dysarthria (speech disorder)
Fall
Nausea (feeling of having an urge to vomit)
Pain
Panic attack
Skin candida (fungal infection of skin)
Suicidal ideation
Wheezing (a high-pitched whistling sound made while you breath)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Acute hepatic failure
Ascites (accumulation of fluid in the abdominal cavity)
Diabetes mellitus inadequate control

30-39:

Agitation (state of anxiety or nervous excitement)
Anxiety
Constipation
Depression
Dizziness
Drug abuser
Drug dependence
Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
Dysarthria (speech disorder)
Fall

40-49:

Insomnia (sleeplessness)
Nystagmus (a condition of involuntary eye movement)
Vision blurred

50-59:

Umbilical hernia (an outward bulging (protrusion) of the abdominal lining or part of the abdominal organ(s) through the area around the belly button)
Electrocardiogram qt prolonged
Valvular heart disease (diseases of the heart valves)
Chronic kidney disease
Renal failure (kidney dysfunction)
Dyspnoea (difficult or laboured respiration)
Pulmonary hypertension (increase in blood pressure in the lung artery)
Cardiovascular disorder (heart diseases)
Eye pain
Nausea (feeling of having an urge to vomit)

60+:

Weight decreased
Deafness
Splenomegaly (enlargement of spleen)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Cerebral infarction (less blood supply to brain resulting tissue damage)
Fall
Joint dislocation (a joint position is changed from normal position)
Ligament rupture (tear in ligament)
Oedema peripheral (superficial swelling)
Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)

What are the existing conditions these people have? *

Pain: 10 people, 17.54%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 9 people, 15.79%
Hypersensitivity: 7 people, 12.28%
High Blood Cholesterol: 7 people, 12.28%
Cardiac Disorder: 7 people, 12.28%
Urinary Tract Infection: 6 people, 10.53%
Renal Disorder (kidney disease): 6 people, 10.53%
Hot Flush (sudden feelings of heat): 6 people, 10.53%
Fibromyalgia (a long-term condition which causes pain all over the body): 6 people, 10.53%
Extrapyramidal Disorder (involuntary muscle spasms in the face and neck): 6 people, 10.53%

* Approximation only. Some reports may have incomplete information.

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