Yes, in the United States, oral glutathione is available over the counter as a dietary supplement
It also has a role in the supportive treatment of many organ diseases including kidney and liver disease

aqua/water/eau, glycerin, alcohol denat., niacinamide, ascorbyl glucoside, cyclohexasiloxane, zeolite, bellis perennis (daisy) flower extract, xanthan gum, styrene/ acrylates copolymer, phenoxyethanol, sodium hydroxide, dimethicone, sodium polyacrylate, bisabolol, 1,2-hexanediol, caprylyl glycol, cyclopentasiloxane, disodium edta, acrylates/c10-30 alkyl acrylate crosspolymer, salicylic acid, parfum/fragrance, trideceth-6, sargassum muticum extract, palmaria palmata extract, tartaric acid, sodium metabisulfite, sodium sulfite, peg/ppg-18/18 dimethicone, sodium lauryl sulfate, linalool, limonene, glycyrrhiza uralensis (licorice) root extract, potassium sorbate, butylene glycol, sodium phosphate, carica papaya (papaya) fruit extract, psidium guajava fruit extract, glycyrrhiza glabra (licorice) rhizome/root extract, glycyrrhiza glabra (licorice) root extract, farnesol, saxifraga sarmentosa extract, bht Thanks again
Zhang, W., Xiao, D., Mao, Q
BMC Nephrol 20:379
They can find opioids in the body for three to four days