according to this site,the mylan 50/200 shortage is over but that doesn't guarantee you can get it. it could mean that your pharmacy can get it but has a supply of the sun product they want to get rid of or their wholesaler is giving them a better price on the SUN so they're using the MYLAN shortage to use as an excuse to make a few more pennies. i'm going to reorder my mylan 50/200 tomorrow and will let you know if i can get it. this wouldn't be a problem if the FDA required that generic mfg's of extended release pills actually forced the mfg to prove their extended release capabilities matched the brand name but they don't.
FDA Drug Shortages

i didn't do well on the other indian brand mentioned, have never tried sun products. the ER versions cost around $40 for 90 tablets if you were to buy a refill privately so you have a backup supply
Carbidopa / Levodopa ER Prices and Carbidopa / Levodopa ER Coupons - GoodRx

sending you a private message