Ovulation

Amoxicillin: Antibiotic Action and Appropriate Uses

A look at how amoxicillin works and which bacterial infections it can treat

• Amoxicillin

Anatomy of Nicotine Addiction

This animation illustrates how smoking changes your brain, causing nicotine addiction.

Biktarvy: Uses, How It Works, and Common Side Effects

Biktarvy is a complete HIV-1 treatment in a once-a-day single tablet that contains three antiviral medicines bictegravir, emtricitabine, and tenofovir.

• Biktarvy

Carotid angioplasty and stenting

Carotid angioplasty and stenting — See how this stroke treatment is done.

Colonoscopy

See what a doctor sees when you undergo an examination of your colon.