A composition match, not medical advice.
Argin 3gm Sachet Orange Flavour 5gm contains L Arginine 3000mg, as a granules. It is made by Fourrts India Laboratories Pvt. Ltd.
No, it is sold over the counter. Ask a doctor or pharmacist if you are unsure whether it suits you.
Yes. L-Arginine Granules 3g is a Jan Aushadhi medicine with the same salt, the same strength and the same form. On JanAushadhiOnline it costs ₹16.50 for 5 gms (₹3.3 / gm), against ₹12.0 / gm for Argin 3gm Sachet Orange Flavour 5gm at its printed MRP — 72% less per gm. Ask your doctor before changing a brand.