Abstract: An inhaler with a flow-through cap and adjustment for controlling the concentration of a medicament when in use is fabricated from a hollow cylindrical barrel or cartridge having open top and bottom ends with an end plug threadedly received in the bottom end to both seal the bottom end and also, when loosened, to adjust the air flow into the bottom end of the barrel and a bullet-shaped nose cap with a blind bore threadedly received in the top end of the barrel, with the nose cap being equipped with a seal in the blind bore operable to seal off the top end of the barrel and also having a cross bore vent communicating with the blind bore allowing the medicament in the inhaler to be inhaled when the nose cap is loosened via the cross bore vent without removing the nose cap. The nose cap and end plug can be tightened on the barrel to provide adequate seals for more volatile medicaments, and of course, the unit is refillable when the medicament is exhausted.

Abstract: A nasal inhaler having paired spaced apart inhalant dispensing cylindrical passageways is disclosed. The inhaler includes a base portion with paired concavities for receiving inhalant compounds. These concavities each receive overlying paired nasal cylinders. These overlying paired nasal cylinders each terminate at spherical endings adapted for simultaneous reception into the nostrils. Each cylinder has two apertures: one, axially of the cylinder at the spherical end for dispensing inhalant vaporized air; the second aperture in the cylinder sidewall for taking in air for inhalant vaporization. When the inhaler is not in use, a cap having paired apertures for fitting freely over each of the inhalant dispensing cylinders is placed over the cylinders. This cap confronts the inhaler base, preferably at polypropylene gaskets surrounding each nasal cylinder where the top seals both nasal cylinders.