merck sharp & dohme b.v. - doravirine - hiv-infektiot - antiviraalit systeemiseen käyttöön - pifeltro is indicated, in combination with other antiretroviral medicinal products, for the treatment of adults, and adolescents aged 12 years and older weighing at least 35 kg infected with hiv 1 without past or present evidence of resistance to the nnrti class.