What are the side effects when using Wigobina Maunzaro?

When looking at reviews for Wigovina Maunzaro, I noticed that some people mentioned side effects.
Many people have reported suffering from nausea or vomiting, and some even stopped midway due to hair loss or gastrointestinal issues. After all, you can't keep getting injections for the rest of your life while ruining your body.
Which one has the fewest side effects and is the safest? Are there any special precautions I should take?