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

Summary:

Drug interactions are reported among people who take Claritin (loratadine) and Peg-intron (peginterferon alfa-2b). Common drug interactions include aplastic anaemia among females and blindness among males.

The phase IV clinical study analyzes what interactions people have when they take Claritin and Peg-intron. It is created by eHealthMe based on reports of 64 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 77,315 Claritin users. Check the latest studies of Claritin.

What is Peg-intron?

Peg-intron has active ingredients of peginterferon alfa-2b. eHealthMe is studying from 11,142 Peg-intron users. Check the latest studies of Peg-intron.

On Jul, 10, 2026

64 people who take Claritin and Peg-intron together, and have interactions are studied.

Claritin and Peg-intron drug interactions.

What are the common drug interactions of Claritin and Peg-Intron, by gender? *:

female:

Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
Ataxia (loss of full control of bodily movements)
Biliary dyskinesia (motility disorder that affects the gallbladder and sphincter of oddi)
Chest pain
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Demyelination (loss of the myelin covering of some nerve fibres resulting in their impaired function)
Influenza
Meningitis aseptic (a condition that causes the membranes covering your brain and spinal cord to become inflamed)
Nausea (feeling of having an urge to vomit)
Pain

male:

Blindness
Optic neuritis (optic nerve inflammation)
Macular degeneration (painless eye condition that leads to the gradual loss of central vision)
Dizziness
Abdominal pain lower
Faecal incontinence (a lack of control over passing stool)
Hypoaesthesia (reduced sense of touch or sensation)
Influenza like illness
Lung neoplasm (tumour of lung)
Nerve injury

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Cardiac failure
Cardiomegaly (increased size of heart than normal)
Cough

30-39:

Abortion spontaneous (naturally occurring miscarriage)
Drug exposure during pregnancy

40-49:

Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
Ataxia (loss of full control of bodily movements)
Biliary dyskinesia (motility disorder that affects the gallbladder and sphincter of oddi)
Demyelination (loss of the myelin covering of some nerve fibres resulting in their impaired function)
Dizziness
Hepatic steatosis (fatty liver disease)
Influenza
Meningitis aseptic (a condition that causes the membranes covering your brain and spinal cord to become inflamed)
Nervousness
Pain

50-59:

Tachycardia (a heart rate that exceeds the range of 100 beats/min)
Urinary incontinence (inability to control the flow of urine and involuntary urination)
Abdominal pain
Abdominal pain lower
Asthenia (weakness)
Asthma
Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall)
Dizziness
Eye discharge
Eye disorder

60+:

Interstitial lung disease
Weight decreased
Papilloedema (optic disc swelling)
Abdominal pain lower
Anaemia (lack of blood)
Brain oedema (excess accumulation of fluid in the intracellular or extracellular spaces of the brain)
Cerebral haemorrhage (bleeding within the brain)
Cerebral infarction (less blood supply to brain resulting tissue damage)
Depression
Haemoglobin decreased

What are the existing conditions these people have? *

Hepatitis C: 61 people, 95.31%

* Approximation only. Some reports may have incomplete information.

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