Final answer:
Extended-release tablets or capsules are expected to have the longest absorption rate for oral drugs.
Step-by-step explanation:
The form of oral drug that is expected to have the longest absorption rate is an extended-release tablet or capsule.
Extended-release tablets or capsules are designed to release the drug slowly and consistently over an extended period of time. This slow release allows for gradual absorption of the drug into the bloodstream, resulting in a longer absorption rate compared to other oral drug forms.
For example, extended-release formulations of drugs like gabapentin and gabapentin enacarbil are commonly used to treat conditions like seizures and restless legs syndrome. These formulations provide a sustained release of the drug, allowing for a longer period of therapeutic effect and minimizing fluctuations in drug concentration in the blood.