Ditropan and Norvir drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Ditropan (oxybutynin chloride) and Norvir (ritonavir). Common drug interactions include pseudoepitheliomatous hyperplasia among females and anhedonia among males.

The phase IV clinical study analyzes what interactions people have when they take Ditropan and Norvir. It is created by eHealthMe based on reports of 20 people who take the same drugs from the FDA, and is updated regularly.

What is Ditropan?

Ditropan has active ingredients of oxybutynin chloride. It is often used in urge incontinence. eHealthMe is studying from 11,799 Ditropan users. Check the latest studies of Ditropan.

What is Norvir?

Norvir has active ingredients of ritonavir. It is often used in hiv infection. eHealthMe is studying from 24,973 Norvir users. Check the latest studies of Norvir.

On Jul, 13, 2026

20 people who take Ditropan and Norvir together, and have interactions are studied.

What are the common drug interactions of Ditropan and Norvir, by gender? *:

female:

Pseudoepitheliomatous hyperplasia (type of epithelial hyperplasia associated with chronic inflammatory response)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Arthralgia (joint pain)
Back pain
Drug resistance (reduction in effectiveness of a drug)
Emotional distress
Hyperkeratosis (thickening of the outer layer of the skin)
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Osteopenia (a condition where bone mineral density is lower than normal)

male:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Fear of falling
Nephrolithiasis (calculi in the kidneys)
Physical disability
Bladder neoplasm (bladder tumour)
Cerebral haemorrhage (bleeding within the brain)
Dry mouth
Post procedural complication
Renal failure acute (rapid kidney dysfunction)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Pseudoepitheliomatous hyperplasia (type of epithelial hyperplasia associated with chronic inflammatory response)
Hyperkeratosis (thickening of the outer layer of the skin)

50-59:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Bone density decreased
Emotional distress
Osteopenia (a condition where bone mineral density is lower than normal)
Osteoporosis (bones weak and more likely to break)
Pain
Renal impairment (severely reduced kidney function)
Tooth fracture
Tooth loss

60+:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Pain in extremity
Rib fracture
Wrist fracture
Renal disorder (kidney disease)
Arthralgia (joint pain)
Back pain
Drug resistance (reduction in effectiveness of a drug)
Emotional distress

What are the existing conditions these people have? *

Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 3 people, 15.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 10.00%
High Blood Pressure: 2 people, 10.00%
Sleep Disorder: 1 person, 5.00%
Headache (pain in head): 1 person, 5.00%
Depression: 1 person, 5.00%
Bipolar Disorder (mood disorder): 1 person, 5.00%
Aspergillosis (an infection caused by a fungus called aspergillus): 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

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