Biologics are medicinal substances that are developed using biological processes. Biologics are often used to treat arthritis and psoriasis and as vaccines. Follow the links below to find WebMD's comprehensive coverage about how biologics work, who should and shouldn't use them, side effects, and much more.
Treating RA: Biologics at a Glance
Which biologic is right for you? Compare medications to treat rheumatoid arthritis.
How Biologics Treat Crohn's Disease
What are biologic drugs? How do they control Crohn's disease?
Next Steps When a Biologic Doesn't Help Your RA
Biologic drugs have altered the course of rheumatoid arthritis for many people, but what happens if you try one and it doesn't work?
Crohn's Disease: 7 Tips for Avoiding a Flare
Tips to help you avoid a Crohn's disease flare and other symptoms.
Surgery for Crohn’s Disease
Understanding the risks and benefits of Crohn’s disease surgery, when it’s recommended, and what kinds of surgery may help with Crohn’s symptoms.
Crohn's Disease: Choosing a Biologic
What is a biologic? Which biologics are used for Crohn's? Who should take one? Get answers to these commonly asked questions about biologics.
Crohn's Disease: Your Treatment Options
Medications to help slow the progression and reduce pain and diarrhea of Crohn's disease.
Biologics and RA: Risks and Rewards
Learn how biologics work to suppress an overactive immune system, and the benefits and side effects of using a biologic to treat your RA.
RA and Biologics
Biologics stave off crippling RA symptoms in some patients.
Side Effects of RA Biologics
Arthritis Foundation President John H. Klippel, MD, explains the side effects of RA biologic drugs.
Is My Biologic Working?
Biologics aren’t for everyone. Learn about how it could be successful for you.
How Do Biologics Work?
Did your doctor prescribe a biologic? Here’s what they do.