Karen Berger, Pharm.D.

Medical Writer and Reviewer Member of the SingleCare Medical Board

After receiving her doctorate from the University of Pittsburgh School of Pharmacy, Karen Berger, Pharm.D., has worked in both chain and independent community pharmacies. She currently works at an independent pharmacy in New Jersey. Dr. Berger enjoys helping patients understand medical conditions and medications—both in person as a pharmacist, and online as a medical writer and reviewer.

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Articles

Prescription pad with pill bottle: Common vs. serious Benzonatate side effects

Benzonatate side effects and how to avoid them

Prescription pad with pill bottle: Common vs. serious Valsartan side effects

Valsartan side effects and how to avoid them

pack of birth control pills - antibiotics and birth control

11 medications that interfere with birth control

Zoloft and alcohol

Can you mix alcohol and Zoloft?

Prescription pad with pill bottle: Common vs. serious Cephalexin side effects

Cephalexin side effects and how to avoid them

Map of America with charts and graphs: Medication error statistics

Medication errors statistics 2026

People wearing masks indoors and COVID particles in the air: COVID variants in the U.S.

COVID-19 variants in the U.S.

How long do migraines last? A man with a clock

Health Education

How long do migraines last?

Prescription pad with pill bottle: Celexa side effects

Celexa side effects and how to avoid them

What its like getting the covid vaccine

The precautions I take now promise a brighter tomorrow

A stamp for FDA approval - naloxone OTC

FDA approves Qelbree for ADHD

Sneakers and a pill represent Lexapro and exercise

Lexapro and exercise: Can you work out while on antidepressants?

Spilled Rx bottle: Cialis side effects

Cialis side effects and how to avoid them

A cocktail and a pill represent Latuda and alcohol

What happens when you mix Latuda and alcohol?

Prescription pad with pill bottle: Spironolactone side effects, warnings and interactions

Spironolactone side effects and how to avoid them

A pill represents Effexor during pregnancy

Is it safe to take Effexor during pregnancy?

Map of America with charts and graphs: Updated sleep statistics

Sleep statistics 2026: The latest data on how much we sleep

Multiple pill bottles represent Look alike sound alike drugs

These drugs are commonly confused

A sign saying Pollen Season Ahead represents spring allergies

Health Education

What causes spring allergies?

Two containers of nasal spray represent adult-onset allergies

Health Education

Yes, you can develop allergies as an adult

Prescription pad with pill bottle: Januvia side effects, interactions and warnings

Januvia side effects and how to avoid them

Ambien and alcoholic drink

What happens when you mix Ambien and alcohol?

Prescription pad with pill bottle: Omeprazole side effects and how to avoid them

Omeprazole side effects and how to avoid them

An arrow and a medical sign represent beta blockers for anxiety

Can beta blockers help with anxiety?

A refrigerator represents a heart healthy diet

2 heart-healthy diets

An image of Meloxicam and alcohol

Can I drink if I’m on Celebrex or Meloxicam?

Tablet with charts and graphs: Stress statistics and trends

Stress statistics 2026: How common is stress, and who’s most a...

An image of foods for arthritis (blueberries, whole grains, and greens)

Health Education

Try these 7 foods that help arthritis—and learn what to avoid

FDA approval - fezolinetant

Glucagon generic wins FDA approval

Alcohol and nausea medicine

Alcohol and nausea medicine: Can I mix Dramamine and alcohol?

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