Actonel vs. Prolia
See how Actonel and Prolia compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Actonel is a daily, weekly, or monthly pill, while Prolia is a twice-yearly injection given by a healthcare provider.
Prolia carries a boxed warning for severe hypocalcemia in advanced kidney disease, and stopping it without follow-up treatment can raise vertebral fracture risk.
Actonel requires strict rules around food, water, and staying upright, while Prolia has no such timing requirements but must be given in a clinical setting.
Actonel vs. Prolia Drug Summary
Actonel
Actonel is an oral bisphosphonate used to treat and prevent osteoporosis in postmenopausal women and men, as well as glucocorticoid-induced osteoporosis and Paget's disease of bone. It slows the cells that break down bone and comes in daily, weekly, twice-monthly, or monthly tablet options.
Prolia
Prolia is a RANKL inhibitor, a type of monoclonal antibody, given as a twice-yearly injection for osteoporosis in postmenopausal women and men at high fracture risk. It also treats glucocorticoid-induced osteoporosis and helps preserve bone in people on cancer therapies that weaken bone.
Actonel vs. Prolia Side Effects
Actonel
Prolia
Actonel vs. Prolia Dosage
Actonel
Prolia
| STAGE | DOSE | WHEN |
| Starting dose | 5 mg once daily | At the start |
| Maximum dose | 150 mg once monthly | If needed |
| Dose changes | 4 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 60 mg subcutaneous | At the start |
| Maximum dose | 60 mg subcutaneous | Same as starting |
| Dose changes | None | Fixed dose |
Actonel
| STAGE | DOSE | WHEN |
| Starting dose | 5 mg once daily | At the start |
| Maximum dose | 150 mg once monthly | If needed |
| Dose changes | 4 increases | As tolerated |
Prolia
| STAGE | DOSE | WHEN |
| Starting dose | 60 mg subcutaneous | At the start |
| Maximum dose | 60 mg subcutaneous | Same as starting |
| Dose changes | None | Fixed dose |
Actonel vs. Prolia Indications
Actonel
Actonel is FDA-approved to treat and prevent osteoporosis in postmenopausal women, increase bone mass in men with osteoporosis, and manage glucocorticoid-induced bone loss. It is also one of the few bisphosphonates approved for Paget's disease of bone.
Treatment and prevention of postmenopausal osteoporosis
Increase bone mass in men with osteoporosis
Treatment and prevention of glucocorticoid-induced osteoporosis
Treatment of Paget's disease of bone
Prolia
Prolia is FDA-approved for postmenopausal and male osteoporosis at high fracture risk, as well as glucocorticoid-induced osteoporosis. It is also approved to protect bone in people receiving hormone-suppressing therapy for prostate or breast cancer.
Postmenopausal osteoporosis at high fracture risk
Increase bone mass in men with osteoporosis at high risk
Glucocorticoid-induced osteoporosis at high risk
Bone mass increase in men on prostate cancer ADT
Actonel vs. Prolia Pros and Cons
Actonel
Actonel offers flexible dosing options and decades of real-world use, but it requires strict timing around food and water and carries some GI risks. Generic risedronate has made it a longstanding, well-studied option for many types of osteoporosis.
Pros
Available in daily, weekly, or monthly tablets
Long track record since its 1998 approval
One of few bisphosphonates approved for Paget's disease
Can be taken at home without a clinic visit
Cons
Must stay upright for 30 minutes after each dose
Not recommended in severe kidney impairment
Requires precise timing with food and water
Daily or weekly regimens are easy to forget
Prolia
Prolia's twice-a-year injection removes the daily pill burden and can be used in patients who cannot tolerate bisphosphonates. It carries a boxed warning for severe hypocalcemia and requires follow-up therapy after stopping to avoid rebound fractures.
Pros
Only two doses needed per year
Option for patients with reduced kidney function
Approved for bone loss from cancer hormone therapies
No food or water timing restrictions
Cons
Boxed warning for severe hypocalcemia in kidney disease
Must be administered by a healthcare professional
Stopping without follow-up raises fracture risk
Contraindicated in pregnancy
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