It won't harm you as long as you keep to the dosages recommended for each. For chronic users, however, this combo made lead to some insomnia. Warning: I was takin â¦ g 10mg oxycodone every 3-4 hours when I took one Sudafed.t won't harm you as long as you keep to the dosages recommended for each. For chronic users, however, this combo made lead to some insomnia. Warning: I was takin â¦ g 10mg oxycodone every 3-4 hours when I took one Sudafed.
Define crestfallen. crestfallen synonyms, crestfallen pronunciation, crestfallen translation, English dictionary definition of crestfallen. adj. Dispirited and depressed; dejected. crestâ²fallâ²enÂ·ly adv. crestâ²fallâ²enÂ·ness n. adj dejected, depressed, or disheartened ËcrestËfallenly adv adj.
plunge down (something) To run, fall, or plummet down something at great, often uncontrollable speed. The bus skidded on the ice and plunged down the side of the ravine. The rollercoaster plunged down the near-vertical drop, making everyone on board scream with delighted terror. See also: down, plunge. plunge from (something) To fall or plummet down from something at great, often uncontrollable speed. The man somehow gained access to the roof and plunged from the top of the skyscraper. See also: plunge. plunge down something. to run or fall down something. The car plunged down the hill and ran into a tree at the bottom. The bicyclist plunged down the side of the hill at a great speed. See also: down, plunge. McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.