Common Nausea, Vomiting, Diarrhoea, Skin rash, Hearing loss, Balance disorder (loss of balance).

Expert advice for Omnikacin Injection
It is given as a drip (intravenous infusion) or as an injection directly into a vein or into a muscle. Doctor will ensure that patient should be well hydrated before and during amikacin treatment.
Do not drive because you may feel sleepy or dizzy while being treated with amikacin.
Amikacin should be used with caution in premature and newborn babies.
During treatment patient may undergo blood, urine, or hearing tests to look for signs of side effects. 
Do not start or continue the amikacin and consult your doctor:

If you have a kidney problem, or hearing difficulties or tinnitus (ringing in ears)
If you are pregnant or planning to become pregnant or breastfeeding.

Q. Is Omnikacin dialyzable?
Yes, Omnikacin is a dialyzable drug

Q. Is its injection painful?
Its injection is painful. Please consult your doctor before taking the drug

Q. What organisms does Omnikacin cover?
Omnikacin is mainly effective against aerobic gram-negative bacteria such as pseudomonas as well as some gram-positive bacteria such as staphylococcus including methicillin-resistant strains but it is not the drug of choice for infections due to staphylococcus bacteria.

Q. Is amikacin sulfa, penicillin or an aminoglycoside drug?
Amikacin does not contain sulfa and is not a penicillin drug. It is a semisynthetic aminoglycoside

Q. Is Omnikacin ototoxic?
Yes, Omnikacin is ototoxic

Q. Does Omnikacin need to be refrigerated?
Omnikacin should be stored at or below 25°C. It should not be frozen