Which route involves administration of drugs by way of the mouth?

Which route involves administration of drugs by way of the mouth?

• A. Gastric absorption
• B. Oral route
• C. Transdermal route
• D. Sublingual route

Answer: (B)

The oral route is the method where a drug is given by mouth and swallowed. Once swallowed, it travels through the digestive tract—primarily absorbed in the stomach and small intestine—and enters the bloodstream. This route is common because it’s easy, safe for self-administration, and inexpensive. It’s the best fit for "administration by way of the mouth" because it defines how the drug is given (by mouth). Gastric absorption describes where the drug is absorbed (in the stomach) rather than how it’s administered overall, so it’s not the route itself. Sublingual and transdermal routes involve different pathways: sublingual is absorbed under the tongue, while transdermal goes through the skin.

The oral route is the method where a drug is given by mouth and swallowed. Once swallowed, it travels through the digestive tract—primarily absorbed in the stomach and small intestine—and enters the bloodstream. This route is common because it’s easy, safe for self-administration, and inexpensive.

It’s the best fit for "administration by way of the mouth" because it defines how the drug is given (by mouth). Gastric absorption describes where the drug is absorbed (in the stomach) rather than how it’s administered overall, so it’s not the route itself. Sublingual and transdermal routes involve different pathways: sublingual is absorbed under the tongue, while transdermal goes through the skin.