Cardizem cd and Sudafed drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cardizem cd (diltiazem hydrochloride) and Sudafed (pseudoephedrine hydrochloride). Common drug interactions include infusion site haemorrhage among females.

The phase IV clinical study analyzes what interactions people have when they take Cardizem cd and Sudafed. It is created by eHealthMe based on reports of 17 people who take the same drugs from the FDA, and is updated regularly.

What is Cardizem cd?

Cardizem cd has active ingredients of diltiazem hydrochloride. It is often used in high blood pressure. eHealthMe is studying from 6,045 Cardizem cd users. Check the latest studies of Cardizem cd.

What is Sudafed?

Sudafed has active ingredients of pseudoephedrine hydrochloride. It is often used in nasal congestion. eHealthMe is studying from 12,944 Sudafed users. Check the latest studies of Sudafed.

On Jul, 09, 2026

17 people who take Cardizem cd and Sudafed together, and have interactions are studied.

Cardizem cd and Sudafed drug interactions.

What are the common drug interactions of Cardizem Cd and Sudafed, by gender? *:

female:

Infusion site haemorrhage (bleeding from infusion site)
Infusion site pain
Beta haemolytic streptococcal infection (infection with streptococcus pyogenes, a beta-haemolytic bacterium cause mild to moderately severe respiratory tract, skin, and soft tissue)
Candidiasis (candidiasis or thrush is a fungal infection)
Cardiac arrest
Cardiac failure congestive
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Cold sweat
Coronary artery disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)
Disorientation (disability in which the senses of time, direction, and recognition of people and places)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Fatigue (feeling of tiredness)
Nasopharyngitis (inflammation of the nasopharynx)
Therapeutic response unexpected
Anxiety
Crying
Depression
Drug hypersensitivity
Gastric polyps (abnormal growth of stomach tissue projecting from a mucous membrane)
Gastroenteritis viral (inflammation of stomach and intestine caused by virus infection)
Hallucination (an experience involving the perception of something not present)

40-49:

n/a

50-59:

n/a

60+:

Infusion site haemorrhage (bleeding from infusion site)
Infusion site pain
Cardiac failure congestive
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Cold sweat
Coronary artery disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)
Cough
Disorientation (disability in which the senses of time, direction, and recognition of people and places)
Gastrointestinal disorder (functional problems of gastrointestinal tract)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 9 people, 52.94%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 9 people, 52.94%
Immunodeficiency Common Variable: 5 people, 29.41%
Sinusitis (inflammation of sinus): 3 people, 17.65%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 3 people, 17.65%

* Approximation only. Some reports may have incomplete information.

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