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abaloparatide vs acyclovir

Side-by-side comparison of abaloparatide and acyclovir Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
abaloparatide PTHrP Analog
acyclovir Antiviral (Nucleoside Analog)
Type
abaloparatide Prescription
acyclovir Prescription
Summary
abaloparatide

Tymlos is a medicine to treat osteoporosis. It helps make your bones stronger and less likely to break.

acyclovir

Acyclovir is an antiviral medicine. It is used to treat infections caused by certain viruses.

What It Treats
abaloparatide

Tymlos treats osteoporosis in women after menopause and in men. It is for people who have a high chance of breaking a bone. This includes those who have already had a bone break due to osteoporosis or have other risk factors. It can also be used if other osteoporosis treatments did not work or could not be tolerated.

acyclovir

Acyclovir is used to treat shingles, which is caused by herpes zoster. It also treats genital herpes, both the first time you have it and when it comes back. Acyclovir can also treat chickenpox.

How It Works
abaloparatide

Tymlos is similar to a natural hormone in your body. It helps your body build new bone. This makes your bones stronger and less likely to break.

acyclovir

Acyclovir stops the virus from growing and spreading. It does this by interfering with the virus's ability to make copies of itself. This helps your body fight off the infection.

Common Side Effects
abaloparatide
  • High calcium in your urine
  • Feeling dizzy
  • Feeling sick to your stomach
  • Headache
  • Feeling your heart beat fast or irregularly
acyclovir
  • Malaise (feeling unwell)
  • Nausea
  • Diarrhea
FAERS Reports
abaloparatide
  • Headache 4,180
  • Feeling sick to your stomach 3,222
  • Feeling dizzy 3,122
  • Feeling tired 2,742
  • Increased heart rate 2,139
acyclovir
  • Tiredness 7,612
  • Diarrhea 7,064
  • Using the medicine for something it's not approved for 5,797
  • Lung infection 5,474
  • Feeling sick to your stomach 5,330
Serious Warnings
abaloparatide

Tymlos may increase the risk of bone cancer (osteosarcoma). You should not take this medicine if you have certain conditions that increase this risk. These include Paget's disease, bone cancer, radiation treatment to your bones, or certain hereditary disorders. If you have symptoms of feeling dizzy, palpitations, tachycardia, or nausea, you should sit or lie down.

acyclovir

Acyclovir can cause nervous system problems, especially in older adults or people with kidney problems. Tell your doctor if you have kidney problems before taking this medicine.

Pregnancy
abaloparatide

Tymlos is not for women who could get pregnant. It is not known if Tymlos can harm an unborn baby or pass into breast milk.

acyclovir

Tell your doctor if you are pregnant or plan to become pregnant. It is not known if acyclovir will harm an unborn baby. Talk to your doctor about the risks and benefits of taking acyclovir while breastfeeding.

Also Compare — Nearby Drugs

How to Read This abaloparatide vs acyclovir Comparison

abaloparatide is classified in the PTHrP Analog drug class, while acyclovir sits within the Antiviral (Nucleoside Analog) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, abaloparatide has 15,405 submissions while acyclovir has 31,277. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between abaloparatide and acyclovir — always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.