What is the difference between Levofloxacin and Moxifloxacin Hydrochloride?

Levofloxacin and Moxifloxacin Hydrochloride are both Fluoroquinolone Antibiotics, so they work through the same broad mechanism. They differ in dosing, half-life, side-effect frequency, and how individual patients tolerate them. See the head-to-head sections below for the specifics.

Is Levofloxacin the same as Moxifloxacin Hydrochloride?

No. Levofloxacin (Levofloxacin) and Moxifloxacin Hydrochloride (Moxifloxacin Hydrochloride) are distinct medications. They are sometimes confused because of similar branding or because they treat overlapping conditions, but they have different active ingredients and different safety profiles.

Which has fewer side effects, Levofloxacin or Moxifloxacin Hydrochloride?

Side-effect frequency varies by individual. The side-effect comparison section on this page shows FAERS-reported events for each drug side by side. FAERS is voluntary reporting, so it reflects what patients and clinicians chose to report, not absolute population risk.

Can I switch from Levofloxacin to Moxifloxacin Hydrochloride?

Switching medications should always be done under prescriber supervision. The "patient stories" section on this page includes accounts from people who have made the switch and what their transition felt like, but those are individual experiences, not protocols.

Levofloxacin vs Moxifloxacin Hydrochloride

Compare Levofloxacin (Levofloxacin) and Moxifloxacin Hydrochloride (Moxifloxacin Hydrochloride), clinical data, side effects, and patient experiences.

Levofloxacin

Levofloxacin, Levaquin · Fluoroquinolone Antibiotic

How it works

12.1 Mechanism of Action Levofloxacin is a member of the fluoroquinolone class of antibacterial agents [see Microbiology ( 12.4)].

Approved for

1 INDICATIONS & USAGE Levofloxacin is a fluoroquinolone antibacterial indicated in adults (18 years of age and older) with infections caused by designated

susceptible bacteria and in pediatric patients where indicated (1

12.4). • Pneumonia: Nosocomial (1.1) and Community Acquired (1.2

1.3) • Skin and Skin Structure Infections (SSSI): Complicated (1.4) and Uncomplicated (1.5) • Chronic bacterial prostatitis (1.6) • Inhalational Anthrax

OralTablet

Moxifloxacin Hydrochloride

Moxifloxacin Hydrochloride · Fluoroquinolone Antibiotic

How it works

12.1 Mechanism of Action Moxifloxacin hydrochloride is a member of the fluoroquinolone class of antibacterial agents [see Microbiology (12.4) ] .

Approved for

1 INDICATIONS AND USAGE Moxifloxacin tablets are a fluoroquinolone antibacterial indicated for treating infections in adults 18 years of age and older caused by designated susceptible bacteria

Haemophilus influenzae

Moraxella catarrhalis

methicillin-susceptible Staphylococcus aureus

OralTablet

Quick Comparison

LevofloxacinMoxifloxacin Hydrochloride

Drug Class

Fluoroquinolone Antibiotic

Route

Oral

Half-Life

N/A

FDA Approved

N/A

Pregnancy

N/A

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

Levofloxacin

Drug Not Working

1-10%

Shortness of Breath

1-10%

Nausea

1-10%

Fever

1-10%

Fatigue

1-10%

Diarrhea

1-10%

Joint Pain

1-10%

Limb Pain

1-10%

Moxifloxacin Hydrochloride

Shortness of Breath

1-10%

Drug Not Working

1-10%

Vomiting

1-10%

Rash

1-10%

Fatigue

1-10%

General Unwellness

0.1-1%

Fever

0.1-1%

Nausea

0.1-1%

FDA Warnings

Levofloxacin

5 WARNINGS AND PRECAUTIONS Anaphylactic reactions and allergic skin reactions, serious, occasionally fatal, may occur after first dose ( 4 , 5
6 ) Hepatotoxicity: Severe, and sometimes fatal, hepatoxicity has been reported
1 Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects Fluoroquinolones, including levofloxacin, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient
Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see Warnings and Precautions (5

Moxifloxacin Hydrochloride

5 WARNINGS AND PRECAUTIONS Prolongation of the QT interval and isolated cases of torsade de pointes has been reported
5 ) Hypersensitivity and other serious reactions: Serious and sometimes fatal reactions, including anaphylactic reactions, may occur after first or subsequent doses of moxifloxacin hydrochloride
1 Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects Fluoroquinolones, including moxifloxacin hydrochloride, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient
Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see Warnings and Precautions (5

Clinical Trial Data

No head-to-head clinical studies found for Levofloxacin vs Moxifloxacin Hydrochloride.

Levofloxacin vs Moxifloxacin Hydrochloride: What You Should Know

Key Differences

Both Levofloxacin and Moxifloxacin Hydrochloride belong to the Fluoroquinolone Antibiotic class. While they share a similar mechanism of action, differences in pharmacokinetics, dosing, and side effect profiles may make one more suitable than the other for individual patients.

Safety Considerations

Levofloxacin carries 4 FDA warnings. Moxifloxacin Hydrochloride carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.

Related Comparisons

Levofloxacin vs Llevofloxacin→Ciprofloxacin vs Moxifloxacin Hydrochloride→Moxifloxacin Hydrochloride vs Ofloxacin Otic→Moxifloxacin Hydrochloride vs Ofloxacin→Moxifloxacin vs Moxifloxacin Hydrochloride→Llevofloxacin vs Moxifloxacin Hydrochloride→

Primary sources

Every figure on this comparison links back to its primary source. See data sources and methodology for the full provenance trail.

Levofloxacin: DailyMed label · FAERS adverse events · ClinicalTrials.gov
Moxifloxacin Hydrochloride: DailyMed label · FAERS adverse events · ClinicalTrials.gov

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Levofloxacin vs Moxifloxacin Hydrochloride

Compare Levofloxacin (Levofloxacin) and Moxifloxacin Hydrochloride (Moxifloxacin Hydrochloride), clinical data, side effects, and patient experiences.

Levofloxacin

Levofloxacin, Levaquin · Fluoroquinolone Antibiotic

How it works

12.1 Mechanism of Action Levofloxacin is a member of the fluoroquinolone class of antibacterial agents [see Microbiology ( 12.4)].

Approved for

1 INDICATIONS & USAGE Levofloxacin is a fluoroquinolone antibacterial indicated in adults (18 years of age and older) with infections caused by designated

susceptible bacteria and in pediatric patients where indicated (1

12.4). • Pneumonia: Nosocomial (1.1) and Community Acquired (1.2

1.3) • Skin and Skin Structure Infections (SSSI): Complicated (1.4) and Uncomplicated (1.5) • Chronic bacterial prostatitis (1.6) • Inhalational Anthrax

OralTablet

Moxifloxacin Hydrochloride

Moxifloxacin Hydrochloride · Fluoroquinolone Antibiotic

How it works

12.1 Mechanism of Action Moxifloxacin hydrochloride is a member of the fluoroquinolone class of antibacterial agents [see Microbiology (12.4) ] .

Approved for

1 INDICATIONS AND USAGE Moxifloxacin tablets are a fluoroquinolone antibacterial indicated for treating infections in adults 18 years of age and older caused by designated susceptible bacteria

Haemophilus influenzae

Moraxella catarrhalis

methicillin-susceptible Staphylococcus aureus

OralTablet

Quick Comparison

LevofloxacinMoxifloxacin Hydrochloride

Drug Class

Fluoroquinolone Antibiotic

Route

Oral

Half-Life

N/A

FDA Approved

N/A

Pregnancy

N/A

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

Levofloxacin

Drug Not Working

1-10%

Shortness of Breath

1-10%

Nausea

1-10%

Fever

1-10%

Fatigue

1-10%

Diarrhea

1-10%

Joint Pain

1-10%

Limb Pain

1-10%

Moxifloxacin Hydrochloride

Shortness of Breath

1-10%

Drug Not Working

1-10%

Vomiting

1-10%

Rash

1-10%

Fatigue

1-10%

General Unwellness

0.1-1%

Fever

0.1-1%

Nausea

0.1-1%

FDA Warnings

Levofloxacin

5 WARNINGS AND PRECAUTIONS Anaphylactic reactions and allergic skin reactions, serious, occasionally fatal, may occur after first dose ( 4 , 5
6 ) Hepatotoxicity: Severe, and sometimes fatal, hepatoxicity has been reported
1 Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects Fluoroquinolones, including levofloxacin, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient
Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see Warnings and Precautions (5

Moxifloxacin Hydrochloride

5 WARNINGS AND PRECAUTIONS Prolongation of the QT interval and isolated cases of torsade de pointes has been reported
5 ) Hypersensitivity and other serious reactions: Serious and sometimes fatal reactions, including anaphylactic reactions, may occur after first or subsequent doses of moxifloxacin hydrochloride
1 Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects Fluoroquinolones, including moxifloxacin hydrochloride, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient
Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see Warnings and Precautions (5

Clinical Trial Data

No head-to-head clinical studies found for Levofloxacin vs Moxifloxacin Hydrochloride.

Levofloxacin vs Moxifloxacin Hydrochloride: What You Should Know

Key Differences

Safety Considerations

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.