Solonex 300mg

What is Solonex 300mg?

Solonex 300mg is an Indian brand of isoniazid, a tuberculosis medicine. Each tablet contains isoniazid 300 mg. It is made by Macleods Pharmaceuticals Pvt Ltd in India.

What it is used for

According to the US FDA label for isoniazid tablets (DailyMed), isoniazid is used for all forms of tuberculosis caused by susceptible bacteria (always with other TB medicines), and preventive treatment for defined groups at higher risk of TB. The US label carries a boxed warning about severe and sometimes fatal hepatitis, with liver monitoring during treatment. Your doctor decides whether it suits you.

Packs and price

Solonex 300mg comes in packs of 100, 200, 300 and 500 tablets. The lowest price works out at about $0.12 per tablet on the 500 tablet pack, as of October 2026; the pack selector shows the current price. Shipping is $25 on orders under $149 and free from $149.

Prescription status

Isoniazid is a prescription medicine in the US, UK, Australia and Canada. The 300 mg tablet is a US strength; UK and Australian products come in lower strengths. Solonex 300mg itself is an India made pack and is not approved by the FDA, MHRA, TGA or Health Canada. The FDA says that importing unapproved medicines for personal use is illegal in most circumstances, so check the rules where you live.

Before you order

Read the patient leaflet that comes with the pack. Tell your doctor or pharmacist about any other medicines you take and any health conditions you have. Get urgent medical help if you notice signs of an allergic reaction, such as swelling of the face, lips, tongue or throat, trouble breathing, or a widespread rash.

Delivery

Orders usually arrive in 7 to 14 business days in plain packaging, with a tracking number.