- Xadago®see Safinamide
- Xalatan®see Latanoprost Ophthalmic
- Xalkori®see Crizotinib
- Xanax®see Alprazolam
- Xanax® XRsee Alprazolam
- Xarelto®see Rivaroxaban
- Xartemis XR® (as a combination product containing Acetaminophen, Oxycodone)see Oxycodone
- Xeljanz®see Tofacitinib
- Xeljanz® XRsee Tofacitinib
- Xeloda®see Capecitabine
- Xenazine®see Tetrabenazine
- Xenical®see Orlistat
- Xeomin®see IncobotulinumtoxinA Injection
- Xepi®see Ozenoxacin
- Xerava®see Eravacycline Injection
- Xerese® (as a combination product containing Acyclovir, Hydrocortisone)see Acyclovir Topical
- Xerese® (as a combination product containing Acyclovir, Hydrocortisone)see Hydrocortisone Topical
- Xermelo®see Telotristat
- Xgeva®see Denosumab Injection
- Xiaflex®see Collagenase Clostridium Histolyticum Injection
- Xibrom®see Bromfenac Ophthalmic
- Xifaxan®see Rifaximin
- Xigduo® XR (as a combination product containing Dapagliflozin, Metformin)see Dapagliflozin
- Xigduo® XR (as a combination product containing Dapagliflozin, Metformin)see Metformin
- Xiidra®see Lifitegrast Ophthalmic
- Ximino®see Minocycline
- Xodol® (as a combination product containing Acetaminophen, Hydrocodone)see Hydrocodone Combination Products
- Xodol® (as a combination product containing Acetaminophen, Hydrocodone)see Acetaminophen
- Xofluza®see Baloxavir Marboxil
- Xolair®see Omalizumab Injection
- Xolegel®see Ketoconazole Topical
- Xolox® (as a combination product containing Acetaminophen, Oxycodone)see Acetaminophen
- Xolox® (as a combination product containing Acetaminophen, Oxycodone)see Oxycodone
- Xopenex® HFAsee Levalbuterol Oral Inhalation
- Xtampza® ERsee Oxycodone
- Xtandi®see Enzalutamide
- Xultophy® (as a combination product containing Insulin Degludec and Liraglutide)see Liraglutide Injection
- Xultophy® (as a combination product containing Insulin Degludec and Liraglutide)see Insulin Degludec (rDNA Origin) Injection
- Xylishield®see Fluoride
- Xylocaine® Viscoussee Lidocaine Viscous
- Xyrem®see Sodium Oxybate
- Xyzal®see Levocetirizine