Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Osteoporosis Health Center

Font Size

Once-Yearly Osteoporosis Drug in Works

Drug, Called Reclast, Is Taken by IV for 15 Minutes Once a Year
WebMD Health News
Reviewed by Louise Chang, MD

Sept. 19, 2006 -- A new drug called Reclast may make it possible to reduce osteoporosis fractures with a single annual infusion that takes 15 minutes.

Reclast's maker, Novartis, is preparing to submit Reclast for FDA approval as an osteoporosis treatment. Meanwhile, Reclast's Phase III studies, the last phase of studies needed for FDA consideration, are in.

The studies lasted three years and included more than 7,700 postmenopausal women with osteoporosis (average age: 73) in 27 countries.

The women either got a 15-minute yearly infusion of Reclast or an infusion containing no medicine (placebo).

Those in the Reclast group were 70% less likely to get new spine fractures and 40% less likely to get hip fractures during the three-year period, compared to those in the placebo group, according to data released by Novartis. Novartis is a WebMD sponsor.

Researcher's Comments

The studies were presented Sept. 16 at the American Society of Bone and Mineral Research's annual meeting in Philadelphia.

Several teams of scientists worked on the studies. They included Dennis Black, PhD, of the University of California, San Francisco.

"The efficacy and safety data show for the first time that women may have the option of a once-yearly treatment for osteoporosis," Black says in a Novartis news release.

The results also show the new drug "effectively protects women against fractures, including those of the hip, which can be devastating," Black says.

About Reclast

Reclast belongs to a class of osteoporosis drugs called bisphosphonates, which curb bone loss.

Currently, bisphosphonate drugs can be taken by mouth once weekly (such as Fosamax and Actonel) or once monthly (Boniva). Boniva is also available as an intravenous infusion given every three months.

Reclast's active ingredient is zoledronic acid, which Novartis includes in Zometa, a drug used to treat cancercancer-related bone problems.

Side Effects

Another study presented at the meeting tracked side effects of Reclast and Fosamax in 225 postmenopausal women with low bone-mineral density.

In the one-year study, 113 women got one infusion of Reclast. The other 112 women took Fosamax pills once weekly.

A third of the women in the Reclast group reported side effects within the first three days after treatment, compared to a little more than a fifth of those taking Fosamax.

The main side effects reported in the Reclast group were headache (12%), pain (5%), and fatiguefatigue (5%).

Three days after treatment, overall rates of side effects were similar for Reclast and Fosamax, the researchers report.

The researchers also asked 220 of the participants if they would rather take a weekly pill or get a yearly infusion for their osteoporosis. More than three-fourths said they preferred the infusions, the study shows.

Today on WebMD

Women working out and walking with weights
Reduce bone loss and build stronger muscles.
Chinese cabbage
Calcium-rich foods to add to your diet.
woman stretching
Get the facts on osteoporosis.
Porous bone
Causes, symptoms, risk factors, and treatment.
senior woman
Woman holding plate of brocolli
wrist xray
Superfood for Bones
mature woman
sunlight in hands
man and woman in front of xray
woman with dumbbells