Dr. Feelgood as a nickname may refer to:

• Heroin, the narcotic
• Physicians generally who overprescribe psychoactive medications, and in particular to Dr. Max Jacobson

Dr. Feelgood may also refer to: Heroin, also known as diamorphine (BAN) or diacetylmorphine (INN), is a semi-synthetic opioid. ... A psychoactive drug or psychotropic substance is a chemical that alters brain function, resulting in temporary changes in perception, mood, consciousness, or behaviour. ...

• Dr. Feelgood (band), British rock/blues band
• Dr. Feelgood (album), and a single of the same name, by American band Mötley Crüe
• "Dr. Feelgood", single by Swedish eurodance group Cool James and Black Teacher
• Dr. Feelgood & the Interns, recording name of Piano Red (died 1985), American musician
• Dr. Feelgood, stage name of Andrew Dickinson (born 1978), British doctor and professional wrestler
• Dr. Feelgood (Australian personality), stage name of Dr. Sally Cockburn, Australian physician and radio/television personality

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