Drug-Induced Lymphopenia

Check and manage Drug-Induced Lymphopenia

A blood test called a complete blood count with differential can measure lymphocytes.

Your result helps your clinician decide whether to watch, adjust, pause, or change a medicine. Do not stop a prescribed medicine without asking your clinician.

Some medicines can lower lymphocytes slowly, before you feel sick. Regular monitoring helps find unsafe changes early and keeps treatment decisions based on your actual blood count.

Almost done

Check your inbox and confirm your email. We will send next steps for Drug-Induced Lymphopenia testing and monitoring.

Get testing next steps for Drug-Induced Lymphopenia

We can help you check and manage your lymphocyte level during treatment.

First Name *

Last Name *

Email *

Phone Number *

ZIP Code *

I agree to receive text messages and emails from Rite Aid.

What is Drug-Induced Lymphopenia?

Drug-induced lymphopenia means a medicine may lower your lymphocytes, a type of white blood cell. Low lymphocytes can make it harder for your body to fight some infections.

Complete Blood Count / CBC (includes Differential and Platelets)

Reveal underlying infections or inflammations effortlessly
Detect anemia or other blood disorders early
Assess your overall health status comprehensively

^$118

CBC & CMP

Reveal underlying health conditions effortlessly
Detect vitamin deficiencies early
Clarify the cause of your symptoms

^$57

Anemia Profile (Basic)

Pinpoint the cause of your fatigue
Reveal hidden iron deficiencies effortlessly
Clarify why you feel dizzy often

^$77

Symptoms

No clear symptoms between blood tests
Frequent infections
Fever, chills, or sore throat
Mouth sores
Swollen glands
Slow recovery from common infections

Causes and risk factors

Immunosuppressants used after transplant or for autoimmune disease
Chemotherapy medicines
Cladribine
Alemtuzumab
Some biologic medicines
Recent severe infection
Older age or other immune system conditions

How it's diagnosed

A blood test called a complete blood count with differential can measure lymphocytes.

Your result helps your clinician decide whether to watch, adjust, pause, or change a medicine. Do not stop a prescribed medicine without asking your clinician.

Treatment options

Management starts with finding the medicine involved and checking your infection risk. Your clinician may repeat testing, adjust timing, change dose, pause treatment, or choose another option. Urgent care may be needed for fever or signs of infection.

Almost done

Check your inbox and confirm your email. We will send next steps for Drug-Induced Lymphopenia testing and monitoring.

Get testing next steps for Drug-Induced Lymphopenia

We can help you check and manage your lymphocyte level during treatment.

First Name *

Last Name *

Email *

Phone Number *

ZIP Code *

I agree to receive text messages and emails from Rite Aid.

Frequently asked questions

Drug-induced lymphopenia means a medicine may lower your lymphocyte count. Lymphocytes are white blood cells that help fight infection.

A complete blood count with differential can measure lymphocytes. Your clinician may order repeat tests based on your medicine and health history.

Safe levels depend on your medicine, age, health history, and infection risk. Ask your clinician what range applies to your treatment plan.

Medicines that may lower lymphocytes include immunosuppressants, chemotherapy, cladribine, alemtuzumab, and some biologics. Risk can vary by dose and treatment length.

Do not stop a prescribed medicine without asking your clinician. Stopping suddenly can make the treated condition worse.

Lymphocytes can fall before you notice symptoms. Monitoring helps your clinician adjust care before infection risk becomes more serious.

Report fever, chills, sore throat, mouth sores, or repeated infections. These signs may matter more when lymphocytes are low.

Counts may improve after a medicine is changed, paused, or completed. The timing depends on the drug and your overall health.