Hydroxyurea and Cialis drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Hydroxyurea (hydroxyurea) and Cialis (tadalafil). Common drug interactions include chronic kidney disease among males.

The phase IV clinical study analyzes what interactions people have when they take Hydroxyurea and Cialis. It is created by eHealthMe based on reports of 21 people who take the same drugs from the FDA, and is updated regularly.

What is Hydroxyurea?

Hydroxyurea has active ingredients of hydroxyurea. It is often used in polycythemia vera. eHealthMe is studying from 17,240 Hydroxyurea users. Check the latest studies of Hydroxyurea.

What is Cialis?

Cialis has active ingredients of tadalafil. It is often used in erection problems. eHealthMe is studying from 28,532 Cialis users. Check the latest studies of Cialis.

On Aug, 06, 2026

21 people who take Hydroxyurea and Cialis together, and have interactions are studied.

Hydroxyurea and Cialis drug interactions.

What are the common drug interactions of Hydroxyurea and Cialis, by gender? *:

female:

n/a

male:

Chronic kidney disease
Tubulointerstitial nephritis (a form of nephritis affecting the interstitium of the kidneys surrounding the tubules)
Cough
Drooling (drop saliva uncontrollably from the mouth)
Drug hypersensitivity
Fatigue (feeling of tiredness)
Gout (uric acid crystals building up in the body)
Multiple allergies (allergy to multiple agents)
Nausea (feeling of having an urge to vomit)
Oedema peripheral (superficial swelling)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Asthenia (weakness)
Nausea (feeling of having an urge to vomit)
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Rash
Red blood cell count decreased
Tremor (trembling or shaking movements in one or more parts of your body)
Vomiting

40-49:

n/a

50-59:

Chronic kidney disease
Tubulointerstitial nephritis (a form of nephritis affecting the interstitium of the kidneys surrounding the tubules)

60+:

Dizziness
Anisocytosis (patient's red blood cells are of unequal size)
Blood bilirubin increased
Cough
Death
Drooling (drop saliva uncontrollably from the mouth)
Drug hypersensitivity
Orthostatic hypotension (a medical condition consisting of a sudden decrease in blood pressure when a person stands up)
Platelet count decreased
Red blood cell count decreased

What are the existing conditions these people have? *

High Blood Pressure: 4 people, 19.05%
Infection: 4 people, 19.05%
Cough: 4 people, 19.05%
Fluid Retention (an abnormal accumulation of fluid in the blood): 4 people, 19.05%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 19.05%
High Blood Cholesterol: 4 people, 19.05%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 4 people, 19.05%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 19.05%
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 4 people, 19.05%
Pain: 4 people, 19.05%

* Approximation only. Some reports may have incomplete information.

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