Pentoxifylline and Zelnorm drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Pentoxifylline (pentoxifylline) and Zelnorm (tegaserod maleate). Common drug interactions include renal failure among females and cholelithiasis among males.

The phase IV clinical study analyzes what interactions people have when they take Pentoxifylline and Zelnorm. It is created by eHealthMe based on reports of 24 people who take the same drugs from the FDA, and is updated regularly.

What is Pentoxifylline?

Pentoxifylline has active ingredients of pentoxifylline. eHealthMe is studying from 5,997 Pentoxifylline users. Check the latest studies of Pentoxifylline.

What is Zelnorm?

Zelnorm has active ingredients of tegaserod maleate. eHealthMe is studying from 7,261 Zelnorm users. Check the latest studies of Zelnorm.

On Jul, 17, 2026

24 people who take Pentoxifylline and Zelnorm together, and have interactions are studied.

Pentoxifylline and Zelnorm drug interactions.

What are the common drug interactions of Pentoxifylline and Zelnorm, by gender? *:

female:

Renal failure (kidney dysfunction)
Chest pain
Nausea (feeling of having an urge to vomit)
Tubulointerstitial nephritis (a form of nephritis affecting the interstitium of the kidneys surrounding the tubules)
Abdominal pain upper
Anaemia (lack of blood)
Anxiety
Atelectasis (partial or complete collapse of the lung)
Bile duct stone
Blood cholesterol increased

male:

Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Headache (pain in head)
Bone fragmentation
Bone marrow reticulin fibrosis (thickening and scarring of bone marrow reticulin)
Bone swelling
Cardiac failure congestive
Cellulitis (infection under the skin)
Chest pain
Dental caries
Dyspnoea (difficult or laboured respiration)

What are the common drug interactions of Pentoxifylline and Zelnorm, 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:

n/a

50-59:

Abdominal distension
Asthenia (weakness)
Chills (felling of cold)
Constipation
Flatulence (flatus expelled through the anus)
Nausea (feeling of having an urge to vomit)

60+:

Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Headache (pain in head)
Bone fragmentation
Bone marrow reticulin fibrosis (thickening and scarring of bone marrow reticulin)
Bone swelling
Cardiac failure congestive
Cellulitis (infection under the skin)
Chest pain
Dental caries
Dyspnoea (difficult or laboured respiration)

What are the existing conditions these people have? *

Trismus (reduced opening of the jaws): 16 people, 66.67%
Multiple Myeloma (cancer of the plasma cells): 16 people, 66.67%
Type 2 Diabetes: 4 people, 16.67%
Muscle Spasms (muscle contraction): 3 people, 12.50%
Multiple Allergies (allergy to multiple agents): 3 people, 12.50%
Indigestion: 3 people, 12.50%
High Blood Pressure: 3 people, 12.50%
High Blood Cholesterol: 3 people, 12.50%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 12.50%
Gastric Ulcer (stomach ulcer): 3 people, 12.50%

* Approximation only. Some reports may have incomplete information.

Do you take Pentoxifylline and Zelnorm?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously