LOSARTAN POTASSIUM AND HYDROCHLOROTHIAZIDE vs MYSOLINE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 8, 2026·How we rate

Possible drug interaction. LOSARTAN POTASSIUM AND HYDROCHLOROTHIAZIDE and MYSOLINE 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	LOSARTAN POTASSIUM AND HYDROCHLOROTHIAZIDE	MYSOLINE
Rating	New	74/100
Pharmacy pays	~$0.91 /30	~$2.89 /30
Type	RX	RX
Active ingredient	HYDROCHLOROTHIAZIDE AND LOSARTAN POTASSIUM	PRIMIDONE
Manufacturer	Ipca Labs Ltd	Valeant Pharm Intl
Dosage forms	Tablet	Tablet
Drug class	—	Anti-Epileptic Agent
Boxed warning	None	None
Half-life	about 6 to 15 hours (the label reports a range, not a single number)	—
Treats	—	Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

losartan potassium and hydrochlorothiazide mysoline

Rating

New

74/100

Pharmacy pays

~$0.91 /30

~$2.89 /30

Type

Active ingredient

HYDROCHLOROTHIAZIDE AND LOSARTAN POTASSIUM

PRIMIDONE

Manufacturer

Ipca Labs Ltd

Valeant Pharm Intl

Dosage forms

Tablet

Drug class

—

Anti-Epileptic Agent

Boxed warning

None

Half-life

about 6 to 15 hours (the label reports a range, not a single number)

—

Treats

—

Partial Epilepsies, Tonic-Clonic Epilepsy, Tremor

Frequently asked questions

Which is cheaper, Losartan Potassium and Hydrochlorothiazide or Mysoline?

Losartan Potassium and Hydrochlorothiazide costs pharmacies less to acquire — about $0.91 vs $2.89 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Losartan Potassium and Hydrochlorothiazide and Mysoline?

Losartan Potassium and Hydrochlorothiazide contains Hydrochlorothiazide and Losartan Potassium, while Mysoline contains Primidone — 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.