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

Question marks and a syringe | Will compounded semaglutide be banned?

Will compounded semaglutide be banned?

The FDA banned compounded semaglutide, with a few exceptions

Updated on Mar. 3, 2025

A prescription bottle with a label on it: What is Adderall made from?

What is Adderall made from?

Learn about the active and inactive ingredients in Adderall and how they compare to methamphetamine

Hair brush and comb: Does phentermine cause hair loss?

Does phentermine cause hair loss?

Hair loss is not a direct side effect of phentermine and is usually only temporary

Rx pill bottles: Is diazepam (Valium) a controlled substance?

Is diazepam a controlled substance?

Diazepam is a controlled substance. Here's what you need to know.

victoza generic - FDA approval

FDA approves first generic once-daily GLP-1

Liraglutide, the generic of Victoza, is now available to treat Type 2 diabetes, alongside diet and exercise

Zepbound obstructive sleep apnea - FDA stamp

Zepbound for sleep apnea

It’s the first medication that reduces symptom severity, reducing breathing interruptions at night

A woman flexing her biceps and an injector pen | GLP-1 muscle loss

Do GLP-1s cause muscle loss?

When you lose weight quickly, it can affect your muscles, but these strategies can counteract it

Updated on May 20, 2025

A clock and a bottle of pills | How long does Xarelto stay in your system?

How long does Xarelto last?

This blood thinner is processed out of your body one to two days after your last dose

Three prescription bottles with question marks on them: Tizanidine alternatives

Tizanidine alternatives: What can I take instead of tizanidine?

If tizanidine isn’t write for you, there are several options you can discuss with your healthcare provider

FDA stamp - FDA warning compounded semaglutide

FDA issues warning to GLP-1 compounders

The U.S. Food and Drug Administration is sounding the alarm about the risks of taking unapproved versions of Ozempic, Wegovy, Zepbound, and Mounjaro

Spilled bottle of round white tablets: If Zyrtec doesn’t work what should I try?

If Zyrtec doesn’t work what should I try?

If Zyrtec is not working, other antihistamines and nasal steroids can help

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