Racemic pseudoephedrine is marketed as Sudafed - a nasal decongestant. Medicinally it was used as an expectorant and decongestant. Pseudoephedrine can be used either as oral or as topical decongestant. It was used medicinally as an expectorant (clearance of mucus from the airways) and decongestant. Decongestant nasal sprays and eye drops often contain oxymetazoline and are used for topical decongestion. It is also available in combination with pseudoephedrine, a decongestant, known as loratadine/pseudoephedrine. The effectiveness of phenylephrine by mouth as a nasal decongestant is questionable. Semprex-D also contains the decongestant pseudoephedrine. These compounds are sympathomimetics with stimulant and decongestant qualities and are chemically substituted amphetamines. Bielkheden initially tested positive for methylhexaneamine, a stimulant often used as a nasal decongestant. Inhaled eucalyptus oil vapor may be a decongestant. The safety and effectiveness of nasal decongestant use in children is unclear. Decongestant nasal sprays are available over-the-counter in many countries. When misdiagnosis occurs, a decongestant medication is sometimes prescribed. It is a topical decongestant, used in the form of oxymetazoline hydrochloride.