Narcotic analgesic is

codeine

The correct answer is 3. Codeine.

Narcotic analgesics are drugs that relieve pain by acting on the central nervous system. They are typically more potent than non-narcotic analgesics, such as aspirin and paracetamol. Codeine is a narcotic analgesic that is often used to treat moderate to severe pain. It is also used to treat coughs.

Aspirin, paracetamol, and cimetidine are not narcotic analgesics. Aspirin is a non-steroidal anti-inflammatory drug (NSAID) that relieves pain by reducing inflammation. Paracetamol is also an NSAID, but it does not reduce inflammation. Cimetidine is an H2 receptor antagonist that reduces stomach acid production.