hi guys, i m chronic Hep b person. i met a doctor and confirmed with tests. my doctor suggested me entecavir 0.5mg every day and i m on it for past 40 days. today i met another hepatalogist for morning nausea problem and he who suggested me to go for tenofovir which is more effective and less cost. pls kindly help who should i follow and which tablet is good for HBV?