You can buy sodium chloride tablets at pharmacies, online retailers, and medical supply stores

Sodium chloride tablets are salt tablets used to replace electrolytes lost through sweating, dehydration, or certain medical conditions. You'll find them at most chain pharmacies without a prescription, through online retailers, and at stores that specialise in sports nutrition or medical supplies. The brand name you see most often is Thermotabs, though generic versions are widely available. Price and availability vary by location and retailer, so checking a few sources before you buy can save money.

These tablets come in different strengths—typically 300 mg or 600 mg per tablet—and the right dose depends on why you need them. A healthcare provider should recommend the dose if you're taking them for a medical reason like heat exhaustion or a sodium deficiency. If you're buying them for athletic use or heat exposure, the package instructions will tell you how many to take.

Key Takeaways

  • Chain pharmacies like CVS, Walgreens, and Rite Aid stock sodium chloride tablets over the counter in their vitamin and sports nutrition sections.
  • Online retailers including Amazon, Vitacost, and iHerb carry multiple brands and often have lower prices than in-store purchases.
  • Medical supply companies and sports nutrition retailers may have a wider selection of brands and strengths than general pharmacies.
  • Sodium chloride tablets are not prescription medication, but you should confirm the dose with a doctor if you're taking them to treat a medical condition.
  • Prices typically range from $5 to $15 per bottle depending on brand, quantity, and retailer, though this varies by location.

Chain pharmacies and drugstores

CVS, Walgreens, and Rite Aid all carry sodium chloride tablets in their vitamin and sports nutrition aisles. You do not need a prescription. Walk into the store, find the sports or electrolyte section, and look for Thermotabs or generic salt tablets. If you cannot find them on the shelf, ask a pharmacy staff member—they may keep them behind the counter or be able to order them for you.

Prices at chain pharmacies are usually higher than online, but you get the tablet when ready and can read the label before buying. Some locations may not stock them regularly, so calling ahead can save a trip. Many pharmacies also offer their own generic brands, which are chemically identical to name brands but cost less.

Online retailers

Amazon, Vitacost, iHerb, and Swanson Health Products all ship sodium chloride tablets to most addresses. Online shopping gives you access to more brands and strengths than a local pharmacy typically stocks, and prices are often 20 to 40 percent lower. Read the reviews and check the milligram strength before adding to your cart—different products have different doses per tablet.

Shipping usually takes 3 to 7 business days for standard delivery, though some retailers offer faster options for an extra fee. If you need the tablets urgently, a local pharmacy is faster. Online retailers also let you buy in bulk, which lowers the per-tablet cost if you use them regularly.

Medical supply and sports nutrition stores

Specialty retailers like GNC, The Vitamin Shoppe, and local medical supply companies often have a deeper selection than chain pharmacies. These stores employ staff who understand electrolyte replacement and can answer questions about which product suits your situation. Prices vary widely depending on the store and brand, so it's worth comparing before you buy.

Medical supply stores are especially useful if you need sodium chloride tablets for a specific health condition and want to talk through options with someone trained in that area. Sports nutrition stores cater to athletes and people who work in heat, so they typically stock multiple brands and strengths.

Warehouse clubs and bulk retailers

Costco and Sam's Club carry sodium chloride tablets in their health and wellness sections, usually at lower per-unit prices than other retailers. You need a membership to shop at these stores. If you use salt tablets regularly, buying in bulk here can be the cheapest option over time.

Warehouse clubs typically stock one or two brands rather than a wide selection, so your choice of product is limited. Availability varies by location and season—they may stock more during summer months when demand is higher.

What to check before you buy

Look at the milligram strength per tablet. Sodium chloride tablets come in 300 mg, 600 mg, and sometimes other doses. The right dose depends on your body weight, activity level, and why you need them. If a doctor recommended them, follow their dosage. If you're buying for athletic use or heat exposure, the package will have dosing instructions.

Check the expiration date on the package. Sodium chloride tablets are stable for years when stored in a cool, dry place, but you should still buy from stock that hasn't expired. Also look at the ingredient list to make sure there are no additives you want to avoid—some brands add dextrose or other ingredients, while others are pure sodium chloride.

Compare the price per tablet across retailers, not just the total price of the bottle. A larger bottle may look cheaper but cost more per tablet than a smaller one. Online retailers often have the lowest per-tablet cost, but factor in shipping if it's not free.

When to talk to a doctor first

If you're taking sodium chloride tablets to treat a medical condition—such as heat exhaustion, low sodium levels, or a condition that causes excessive sweating—a healthcare provider should recommend the dose and monitor how you respond. Do not self-treat a medical condition with over-the-counter salt tablets without professional guidance.

People with high blood pressure, heart disease, or kidney problems should check with their doctor before taking sodium chloride tablets, since extra salt can affect these conditions. Pregnant or nursing people should also ask a healthcare provider before starting them. If you're unsure whether they're safe for you, a quick call to your doctor or pharmacist costs nothing and takes a few minutes.

Frequently Asked Questions

Do I need a prescription to buy sodium chloride tablets?

No. Sodium chloride tablets are over-the-counter products sold without a prescription at pharmacies, online retailers, and other stores. However, if a doctor prescribed them for a specific medical condition, follow their instructions on dose and duration.

What's the difference between Thermotabs and generic sodium chloride tablets?

Thermotabs is a brand name; generic versions contain the same active ingredient and work the same way. Generics cost less and are chemically identical. The main difference is packaging and price, not effectiveness.

Can I take sodium chloride tablets every day?

That depends on why you're taking them and your individual health. Athletes and people who work in heat may take them regularly during activity. If you're considering daily use for a medical reason, ask a doctor first—long-term salt supplementation can affect blood pressure and kidney function in some people.

Are sodium chloride tablets the same as table salt?

They contain the same chemical compound, but tablets are measured doses designed for specific situations like heat exposure or electrolyte loss. Table salt is not formulated for medical or athletic use and doesn't come in controlled doses.

What should I do if I can't find sodium chloride tablets locally?

Online retailers ship to most addresses and usually have stock when local stores don't. Amazon and Vitacost typically have multiple brands in stock and ship within a week. You can also ask a local pharmacy to order them for you if they don't have them on hand.