Over-the-counter (OTC) items are health products you can buy without a prescription. They include drugs, medical devices, and certain health aids that regulators have determined are safe enough for consumers to use on their own, without direct oversight from a doctor. In the United States alone, there are more than 300,000 OTC drug products on the market, spanning everything from pain relievers and antacids to acne treatments and allergy pills.
What Makes Something “Over the Counter”
For a drug to earn OTC status, it has to meet a specific standard: it must be generally recognized as safe and effective (often shortened to GRASE) for its intended use when consumers follow the label directions. That means the condition it treats should be something a person can identify on their own, the drug’s benefits must clearly outweigh its risks without professional monitoring, and the labeling must be clear enough that an average person can use it correctly.
Most OTC drugs in the U.S. are governed by what the FDA calls “monographs,” which are essentially rulebooks for each therapeutic category. A monograph spells out which active ingredients are allowed, at what doses, for which uses, and what the label must say. If a product fits within an existing monograph, it can go to market without individual FDA approval. Products that fall outside a monograph need to go through the same application process as a new drug.
Common Categories of OTC Drugs
OTC drugs cover a wide range of everyday health needs:
- Pain relievers and fever reducers: acetaminophen, ibuprofen, naproxen, aspirin
- Cough, cold, and allergy products: decongestants, antihistamines, cough suppressants
- Digestive aids: antacids, anti-diarrheal medications, laxatives
- Skin treatments: acne creams, antifungal ointments, hydrocortisone cream, first-aid antiseptics
- Smoking cessation aids: nicotine patches, gums, and lozenges
- Sleep aids and motion sickness remedies: typically antihistamine-based products
- Eye, ear, and nasal care: saline sprays, artificial tears, earwax removal drops
- Sunscreens
Some products that were once prescription-only have recently switched to OTC. In 2023, the FDA approved the first daily birth control pill (norgestrel, sold as Opill) for sale without a prescription, along with a naloxone nasal spray (Narcan) for treating suspected opioid overdoses. These switches happen when the FDA determines enough safety data exists to support consumer self-use.
OTC Medical Devices
Over-the-counter items aren’t limited to drugs. The FDA also classifies certain medical devices as OTC, meaning you can purchase and use them without a prescription. Common examples include thermometers, blood pressure monitors, home pregnancy tests, hearing aids, contact lenses, breast pumps, and electronic muscle stimulators. These devices are still regulated for safety and accuracy, but they’re designed for consumer use without professional supervision.
How OTC Drugs Differ From Supplements
This is one of the most misunderstood distinctions in the pharmacy aisle. Dietary supplements (vitamins, minerals, herbal products, probiotics) sit on shelves right next to OTC drugs, but they are regulated very differently. Under a 1994 law called DSHEA, supplement manufacturers do not need to prove their products are safe or effective before selling them. The FDA has no authority to require safety data from supplement companies either before or after their products hit the market.
OTC drugs, by contrast, must go through expert review confirming their safety, effectiveness, purity, and manufacturing quality. That required accumulation of evidence is what separates a bottle of ibuprofen from a bottle of turmeric capsules, even if both claim to address inflammation. If a product carries a “Drug Facts” label, it’s an OTC drug. If it carries a “Supplement Facts” label, it’s a dietary supplement held to a lower regulatory standard.
Reading the Drug Facts Label
Every OTC drug sold in the U.S. must carry a standardized “Drug Facts” panel. This label follows a strict format so you can quickly find what you need, regardless of the brand. The sections appear in this order:
- Active ingredient(s): the ingredient doing the work and the amount per dose
- Purpose: what category the drug falls into (pain reliever, antihistamine, antacid, etc.)
- Uses: the specific symptoms or conditions the product is intended to treat
- Warnings: when not to use the product, when to stop, potential side effects, and special precautions for groups like pregnant women or children
- Directions: how much to take, how often, and any age-specific instructions
- Other information: storage instructions or additional details
- Inactive ingredients: fillers, flavorings, dyes, and preservatives
The warnings section is especially important because OTC doesn’t mean risk-free. Acetaminophen, the active ingredient in Tylenol, can cause serious liver damage at doses above 4,000 milligrams per day, and the risk rises with long-term use. Ibuprofen and similar anti-inflammatory drugs can cause stomach bleeding without warning signs and may increase the risk of heart attack or stroke. These are safe drugs at recommended doses, but the margin for error narrows when people take multiple products containing the same ingredient without realizing it.
OTC Rules Vary by Country
What counts as over the counter depends on where you live. In Australia, OTC medicines are split into three tiers: general sales medications (available anywhere, including grocery stores), pharmacy medications (sold only in pharmacies but by any staff member), and pharmacist-only medications (requiring a pharmacist to personally advise you before purchase). The U.S. and most other countries don’t make that distinction. If it’s OTC here, it’s available on any retail shelf.
Specific drugs can also differ in status from country to country. In New Zealand, low-dose ibuprofen (200 mg) is available over the counter for headaches, while higher doses are prescription-only. The UK became the first country to sell a low-dose statin (a cholesterol-lowering drug) over the counter in 2004, a move the U.S. FDA rejected over safety concerns. These differences reflect varying national judgments about what consumers can safely manage on their own.
What Stays Behind the Counter
There’s also a middle category that sometimes confuses people. “Behind the counter” products are technically still OTC (no prescription needed), but you have to ask a pharmacist for them. In the U.S., the most common example is pseudoephedrine, a nasal decongestant restricted because it can be used to manufacture methamphetamine. You’ll show an ID and sign a log, but you won’t need a doctor’s order. Some states apply similar restrictions to other products. These items are still considered OTC for regulatory purposes, even though they’re not sitting on an open shelf.