Rest Simply

Diphenhydramine Hydrochloride · Tablet, Coated · Oral

Over the counter Histamine-1 Receptor Antagonist

Active ingredient

Active ingredient (in each caplet) Diphenhydramine HCl 25 mg

Purpose

Purpose Nighttime sleep-aid

Uses

Use for relief of occasional sleeplessness

Warnings

Warnings Do not use in children under 12 years of age with any other product containing diphenhydramine, even one used on skin Ask a doctor before use if you have a breathing problem such as emphysema or chronic bronchitis trouble urinating due to an enlarged prostate gland glaucoma Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers When using this product avoid alcoholic drinks drowsiness will occur do not drive a motor vehicle or operate machinery Stop use and ask a doctor if sleeplessness persists continously for more than 2 weeks. Insomnia may be a symptom of serious underlying medical illness. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222).

Do not use

Do not use in children under 12 years of age with any other product containing diphenhydramine, even one used on skin

Ask a doctor before use

Ask a doctor before use if you have a breathing problem such as emphysema or chronic bronchitis trouble urinating due to an enlarged prostate gland glaucoma

Ask a doctor or pharmacist

Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers

When using this product

When using this product avoid alcoholic drinks drowsiness will occur do not drive a motor vehicle or operate machinery

Stop use and ask a doctor

Stop use and ask a doctor if sleeplessness persists continously for more than 2 weeks. Insomnia may be a symptom of serious underlying medical illness.

Pregnancy or breast-feeding

If pregnant or breast-feeding, ask a health professional before use.

Keep out of reach of children

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222).

Directions

Directions adults and children 12 years of age and over take 2 caplets at bedtime if needed, or as directed by a doctor children under 12 years of age do not use

Other information

Other information each caplet contains: calcium 45 mg store at room temperature 20-25°C (68-77°F) retain carton for complete product information

Inactive ingredients

Inactive ingredients colloidal silicon dioxide, croscarmellose sodium, dibasic calcium phosphate, FD&C blue #1aluminum lake, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, titanium dioxide

Questions?

Questions or comments? 1-844-705-4384

Label text from the FDA structured product label by HYVEE INC (revised Jan 13, 2026). Long sections are shortened; the complete label is on DailyMed.

Active ingredients

Rest Simply NDC products (6)

NDCStrength & formLabelerType
63868-772Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
Chain Drug Marketing AssociationOTC MONOGRAPH DRUG
83324-113Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
CHAIN DRUG MARKETING ASSOCIATION, INC.OTC MONOGRAPH DRUG
53943-191Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
DISCOUNT DRUG MARTOTC MONOGRAPH DRUG
72036-091Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
Harris TeeterOTC MONOGRAPH DRUG
42507-291Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
HYVEE INCOTC MONOGRAPH DRUG
68998-091Diphenhydramine Hydrochloride 25 mg/1
Tablet, Coated
Marc Glassman, Inc.OTC MONOGRAPH DRUG

Frequently asked questions

What is Rest Simply used for?

Use for relief of occasional sleeplessness

Who makes Rest Simply?

Rest Simply is listed by 6 labelers in the FDA NDC directory, including Chain Drug Marketing Association, CHAIN DRUG MARKETING ASSOCIATION, INC., DISCOUNT DRUG MART, Harris Teeter.