US · guidance
CMS Pub. 100-18, ch. 6, App. B
Appendix B: Part D Drugs/Part D Supplementary Drugs
This table provides Part D coverage clarifications for specific products/drugs/drug categories in
accordance with statutory and regulatory requirements for Part D drugs. This is not an
exhaustive list but only addresses those products/drugs/drug categories that have been the subject
of frequently asked questions. Specific products not identified in this table should always be
evaluated against the statutory and regulatory definition of a “Part D drug” before drawing
conclusions from this table. This table does not address Part B versus Part D coverage questions.
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
Agents when used for anorexia,
weight loss, or weight gain No
Prescription drug products being
used to treat AIDS wasting and
cachexia are not considered agents
used for weight gain or agents used
for cosmetic purposes, and
therefore such products are NOT
excluded under such exclusion
categories.
Agents when used for cosmetic
purposes or hair growth No
Treatments indicated for psoriasis, acne,
rosacea, or vitiligo are NOT considered
cosmetic.
Agents when used for
symptomatic relief of cough and
colds
No
Cough and cold medications are eligible
to meet the definition of a Part D drug in
clinically relevant situations other than
those of symptomatic relief of cough
and/or colds. For example, when
“cough” medications are used to treat a
medical condition that causes a cough,
such as the use of bronchodilators for the
treatment of bronchospasm in asthma,
CMS does not consider these “cough”
medications as excluded drugs and,
therefore, these medications may be
3 Medically Accepted Indication for purposes of Part D is an FDA labeled indication or an indication supported by
citation in either the American Hospital Formulary System (AHFS), or DRUGDEX®. Exceptions may be possible
when used as part of an anti-cancer chemotherapeutic regimen.
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
covered under Part D. However,
antitussives used to treat cough symptoms,
and not the underlying medical condition
causing the cough, are excluded from
basic Part D coverage regardless of the
medical condition causing the cough.
Antihistamine/Decongestant
Combinations (RX)
Yes, except when being
used for symptomatic
relief of cough and cold
Barbiturates Yes Covered for all medically accepted
indications as of 2014
Benzodiazepines Yes Covered for all medically accepted
indications as of 2013
Blood glucose testing strips No NOT directly associated with injection of
insulin
Electrolytes/Replenishers:
*Potassium
Sodium
Calcium
Magnesium
Yes
*Potassium Iodide products are excluded
from Part D as Iodine products (minerals)
because they are not used for potassium
supplementation.
Erectile (ED) Dysfunction Drugs
No
Agents when used for the treatment of
sexual or erectile dysfunction, unless such
agents are used to treat a condition, other
than sexual or erectile dysfunction, for
which the agents have been approved by
the FDA. In addition, ED drugs will meet
the definition of a Part D drug when
prescribed for medically accepted
indications approved by the FDA other
than sexual or erectile dysfunction such as
pulmonary hypertension. However, ED
drugs will not meet the definition of a
Part D drug when used off-label, even if
the off label use is listed in one of the
compendia found in section
1927(g)(1)(B)(i) of the Act.
Extemporaneous Compounds,
including sterile compounding of
Yes, but only costs for
Part D drug components
Dispensing fee may include labor costs
associated with mixing a compounded
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
IV’s and total parenteral
nutrition
may be billed under Part
D
drug product that contains at least one Part
D drug component
Part D drug components used solely as
vehicles in a compound may be covered
under Part D (e.g., D5W, Normal Saline)
Fioricet® (Bultalbital, APAP,
Caffeine) Yes
See Commercially Available Combination
Product Policy
Section 10.3
Fioricet® with Codeine Yes
See Commercially Available Combination
Product Policy
Section 10.3
Fiorinal® (Butalbital, ASA,
Caffeine) Yes
See Commercially Available Combination
Product Policy
Section 10.3
Fiorinal® with Codeine Yes
See Commercially Available Combination
Product Policy
Section 10.3
Fosamax plus D Yes
See Commercially Available Combination
Product Policy
Section 10.3
Galzin No
Heparin/Saline Flushes No See Section 10.6.
Injectable or IV Iron products
such as Iron Dextran, Iron
Sucrose and Sodium ferric
gluconate
No
Prescription vitamin/mineral product
Insulin Yes
Insulin syringes Yes Covered only for injection of insulin
IV Solutions for hydration
therapy Yes
Lancets No NOT directly associated with injection of
insulin
Less-than-effective DESI Drugs
(and those drugs identical,
related or similar)
No
See Section 10.9
Leucovorin Calcium Yes
Librax® No Less-than-effective DESI drug
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
Limbitrol®
(Amitriptyline/chlordiazepoxide) Yes
See Commercially Available Combination
Product Policy
Section 10.3
Lovaza® Yes
Medical foods No
Defined as a food that is formulated to be
consumed or administered enterally
under the supervision of a physician and
which is intended for the specific dietary
management of a disease or condition
for which distinctive nutritional
requirements, based on recognized
scientific principles, are established by
medical evaluation, and that are not
regulated as drugs under section 505 of
the Federal Food, Drug, and Cosmetic
Act.
Megestrol Acetate and Growth
Hormone when used for AIDS
wasting and cachexia
Yes
Prescription drug products that otherwise
satisfy the definition of Part D drug are
Part D drugs when used for AIDS wasting
and cachexia if these conditions are
"medically accepted" indications, as
defined by section 1927(k)(6) of the
Social Security Act (SSA), for the
particular Part D drug. Specifically, CMS
does not consider such prescription drug
products being used to treat AIDS wasting
and cachexia as either agents used for
weight gain or agents used for cosmetic
purposes, and therefore such products
cannot be excluded from the Medicare
Prescription Drug Benefit by reference to
section 1927(d)(2) of the SSA.
Mephyton No Prescription vitamin/mineral product
Methadone
Yes, except when
indicated for the
treatment of opioid
dependence
A Part D drug is partially defined as “a
drug that may be dispensed only upon a
prescription”. . . . Consequently,
Methadone is not a Part D drug when used
for treatment of opioid dependence
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
because it cannot be dispensed for this
purpose upon a prescription at a retail
pharmacy.
Nonprescription/Over-the-counter (OTC) drugs 4
No, except insulin and
supplies associated with
the injection of insulin
Supplies associated with the injection of
insulin include syringes, alcohol wipes,
insulin pens and pen needles, gauze, and
alcohol
PhosLo® Yes
Phytonadione No Prescription vitamin/mineral product
Polysaccharide Iron Complex No Prescription vitamin/mineral product
Prescription niacin products Yes
Prescription niacin products are approved
by the Food and Drug Administration as
safe and effective drugs, are used
therapeutically for the treatment of
dyslipidemia, and do not serve as
nutritional supplements or address a
vitamin deficiency. These products are
used at dosages much higher than
appropriate for nutritional
supplementation. For these reasons, CMS
has concluded that these products should
not be considered prescription vitamins
for purposes of Part D coverage, and
therefore, are not universally excluded
from coverage under the Medicare
prescription drug program.
Prescription vitamins and
mineral products, except prenatal
vitamins and fluoride
preparations
Examples:
B vitamins (Folic Acid,
Cyanocobalamin)
No
4 Part D plans may include OTC drugs in step therapy protocols as part of their cost effective drug utilization
management program. However, OTC drugs included in these step therapy protocols are considered administrative
costs, not Part D drugs.
Product/Drug/Drug Category
(Listing is NOT all-inclusive)
May be covered under
basic Part D benefit
(when used for
“medically accepted
indication”3 and not
covered under
Medicare Parts A or B)
Comments
Vitamin K (phytonadione)
Vitamin D (ergocalciferol and
cholecalciferol)
Zinc (sulfate, acetate)
Iron
Iodine
Multivitamin additives for
parenteral nutrition
Smoking cessation drugs (OTC) No
Smoking cessation drugs (RX) Yes
Sterile Saline/water for Irrigation Yes
Suboxone®, Subutex® Yes
Vitamin D Analogs (Calcitriol,
doxercalciferol, and paricalcitol) Yes NOT considered prescription vitamins
History
(Rev. 18, Issued: 01-15-16, Effective: 01-15-16; Implementation: 01-15-16)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-09-17
- Edition
- iom-2026-09-17
- Content hash
fd4e17bfbabd85a194eab426d54c4c5c58e2baa443d853479140cb5463956c35
The link goes to the issuing authority’s own document — the one we read to produce this record. Where a source publishes whole titles rather than sections, your browser may need a moment to jump to the provision.
Unofficial copy of government-published law, reproduced from official sources with full provenance. Not an official publication; verify against official sources before relying on it in a filing. Records in the 'guidance' corpus, and only that corpus, are sub-regulatory (interpretive guidelines, survey procedures) and are not binding law. Validity bounds follow each jurisdiction's declared temporalBasis.