Related Clues:
- Soporific drug
- International Reply Coupon rel.
- Aid in answering: Abbr.
- Mail courtesy, briefly
- Addictive narcotic
- Sleep-inducing drug
- It'll put you under
- RSVP facilitator
- Drug that's a downer
- Manuscript enclosure (Abbr.)
- Calming agent
- Poppy-sap drug
- Business-reply encl.
- Answering aid: Abbr.
- MSS enclosure