I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), FELLOWSHIP IN NEONATOLOGY ( Newborn and vaccination specialist )

Yes theoretically the dose is more than recommended as Bevon has 100 IU per 0.5 ml and upside D3 (800) has 400 IU per 0.5 ml. Although it should not cause any harm. Discuss this issue with your pediatrician.

Better instead of bevon ,iron supplement is better.Vitamin d excess is not an issue, even both continued.

Vitamin D3 is definitely you should upto 1 year

Greetings Exclusively formula-fed infants usually receive sufficient vitamin D from their daily intake if consuming over 500 mL, reducing the general need for routine, heavy multi-supplementation. However, a combined prescription of Uprise D3 and Bevon drops could be intentionally selected by your pediatrician to treat a diagnosed or suspected micronutrient deficiency, or to provide additional support like zinc or specific B-vitamins found in Bevon. Simultaneously combining multiple vitamin-D-containing drops alongside fortified infant formula increases the cumulative risk of exceeding the safe upper limits for an infant.

Most Formulas Are Fortified With Vitamins . Check Formula Tin For Its Vit D Content . Formula-fed babies: Usually get enough vitamin D from infant formula, provided they drink at least 32 ounces (about 1 liter) or roughly 500ml to a quart of fortified formula daily. If they drink less than that amount, a 400 IU supplement is still needed. Mayo Clinic

Consult with Pediatrician physically for further evaluation and treatment

Vitamin d3,you can give.

D3 drops is must. No.....giving them all together won't lead to excess vitamin d

Uprise d3 is mandatory Can stop bevon