
A composition match, not medical advice.

Zerotuss SF 20mg Suspension 100ml contains Levocloperastine 20mg, as a suspension. It is made by Aristo Pharmaceuticals Pvt. Ltd.
No, it is sold over the counter. Ask a doctor or pharmacist if you are unsure whether it suits you.
Yes. Levocloperastine Oral Suspension 20mg per 5ml is a Jan Aushadhi medicine with the same salt, the same strength and the same form. On JanAushadhiOnline it costs ₹56.25 for 100 mls (₹0.6 / ml), against ₹6.1 / ml for Zerotuss SF 20mg Suspension 100ml at its printed MRP — 90% less per ml. Ask your doctor before changing a brand.