Pentam and Lopressor drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Pentam (pentamidine isethionate) and Lopressor (metoprolol tartrate). Common drug interactions include erythema among females and oedema peripheral among males.

The phase IV clinical study analyzes what interactions people have when they take Pentam and Lopressor. It is created by eHealthMe based on reports of 31 people who take the same drugs from the FDA, and is updated regularly.

What is Pentam?

Pentam has active ingredients of pentamidine isethionate. eHealthMe is studying from 5,686 Pentam users. Check the latest studies of Pentam.

What is Lopressor?

Lopressor has active ingredients of metoprolol tartrate. It is often used in high blood pressure. eHealthMe is studying from 33,152 Lopressor users. Check the latest studies of Lopressor.

On Jul, 16, 2026

31 people who take Pentam and Lopressor together, and have interactions are studied.

What are the common drug interactions of Pentam and Lopressor, by gender? *:

female:

Erythema (redness of the skin)
Erythema induratum (panniculitis on the back of the calves)
Excoriation (to tear or wear off the skin of)
Extremity contracture (permanent shortening of a muscle or joint of arms and legs)
Fatigue (feeling of tiredness)
Hypoaesthesia (reduced sense of touch or sensation)
Injury
Joint range of motion decreased (disease of joint movement)
Joint stiffness
Local swelling (swelling at the site of some application of substance or injury)

male:

Oedema peripheral (superficial swelling)
Dry skin
Erythema (redness of the skin)
Hypoaesthesia (reduced sense of touch or sensation)
Injury
Joint stiffness
Muscular weakness (muscle weakness)
Musculoskeletal stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves)
Nausea (feeling of having an urge to vomit)
Nephrogenic systemic fibrosis (involves fibrosis of skin, joints, eyes due to kidney disease)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Diarrhoea
Dehydration (dryness resulting from the removal of water)
Thinking abnormal
Blood alkaline phosphatase nos increased
Blood lactate dehydrogenase increased
Cardiac failure congestive
Cardiomyopathy (weakening of the heart muscle)
Dermatitis (inflammation of the skin resulting from direct irritation by an external agent or an allergic reaction to it)
Drug abuse
Drug toxicity

40-49:

Peau d'orange (orange peel skin)
Pneumonia
Pruritus (severe itching of the skin)
Pulmonary oedema (fluid accumulation in the lungs)
Rash
Rash macular (small, flat red spots)
Scar
Skin fibrosis (fibrous tissue formation on skin)
Skin hypertrophy (skin cells enlarges)
Skin hypopigmentation (loss of skin colour)

50-59:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Dry skin
Emotional distress
Erythema (redness of the skin)
Fatigue (feeling of tiredness)
Hypoaesthesia (reduced sense of touch or sensation)
Injury
Joint stiffness
Mobility decreased (ability to move is reduced)

60+:

Diarrhoea
Endometrial cancer stage iii
Chills (felling of cold)
Dehydration (dryness resulting from the removal of water)
Fatigue (feeling of tiredness)
Gout (uric acid crystals building up in the body)
Hip fracture
Interstitial lung disease
Malaise (a feeling of general discomfort or uneasiness)
Medical device complication

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 7 people, 22.58%
Nuclear Magnetic Resonance Imaging Brain: 4 people, 12.90%
Pain: 3 people, 9.68%
Chronic Graft Versus Host Disease (immune cells attack the host's body cells after transplant): 3 people, 9.68%
Nausea And Vomiting: 2 people, 6.45%
Nausea (feeling of having an urge to vomit): 2 people, 6.45%
Myelodysplastic Syndrome (a group of conditions that occur when the blood-forming cells in the bone marrow are damaged): 2 people, 6.45%

* Approximation only. Some reports may have incomplete information.

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