Refusal to eat could be a sign of ill health so kindly take the child to the hospital to see a doctor preferably a paediatrician for evaluation and proper management.

Just check it up Super Appetite is actually CYPROHEPTADINE

It is not a multivitamins. It is a drug meant to treat allergies but has side-effect of increasing appetite people use it for that purpose but that is not the primary reason for the medication. It has other side-effects too, please do not use without a doctor's prescription.
Most Paediatricians will not recommend it. I personally do not sanction its use for boosting appetite in children because of the other side effects

Please know that multivitamins or appetite boosters aren't the solution.

Introduce new foods to baby with a lot of patience, one food at a time.

Also ensure that you make baby's food as attractive as you can.

Try expressing breast milk in a cup and feed with a spoon. Also ensure your baby is latching properly. If no improvement please see a doctor.

You also need patience as you introduce meals

A weak and pale child needs urgent medical attention. Kindly see a doctor preferably a Paediatrician for thorough evaluation and treatment.

Don't be in a hurry to give up. Also, try varieties but not more than ONE new food per week.

Kindly see a doctor first to know why your baby has lost appetite.

Loss of appetite and not playing may be the first symptom of sickness…...
So if it persists kindly see a doctor preferably a Paediatrician for thorough evaluation and treatment.