LOTRONEX vs TYZAVAN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. LOTRONEX and TYZAVAN are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	LOTRONEX	TYZAVAN
Rating	New	72/100
Pharmacy pays	~$93.41 /30	$1.49 /mL
Type	RX	RX
Active ingredient	ALOSETRON HYDROCHLORIDE	VANCOMYCIN HYDROCHLORIDE
Manufacturer	Legacy Pharma	Hikma
Dosage forms	Tablet	Injectable
Drug class	—	Glycopeptide Antibacterial
Boxed warning	Boxed warning	Boxed warning
Treats	Diarrhea, Abdominal Pain, Irritable Bowel Syndrome	Diarrhea, Bacterial Endocarditis, Pseudomembranous Enterocolitis

lotronex tyzavan

Rating

New

72/100

Pharmacy pays

~$93.41 /30

$1.49 /mL

Type

Active ingredient

ALOSETRON HYDROCHLORIDE

VANCOMYCIN HYDROCHLORIDE

Manufacturer

Legacy Pharma

Hikma

Dosage forms

Tablet

Injectable

Drug class

—

Glycopeptide Antibacterial

Boxed warning

Treats

Diarrhea, Abdominal Pain, Irritable Bowel Syndrome

Diarrhea, Bacterial Endocarditis, Pseudomembranous Enterocolitis

Frequently asked questions

What is the difference between Lotronex and Tyzavan?

Lotronex contains Alosetron Hydrochloride, while Tyzavan contains Vancomycin Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.