Buy Tetryzoline (tetrahydrozoline) Cas 84-22-0
Tetryzoline (INN),[3] also known as tetrahydrozoline, is a drug used in some over-the-counter eye drops and nasal sprays. Tetryzoline was patented in 1954, and came into medical use in 1959.[4]
Side effects
Tetryzoline eye drops may cause blurred vision, eye irritation and dilated pupils.[5] Tetryzoline is not suitable for prolonged use as its vasoconstrictive effects within the eye eventually decrease or stop. If tolerance to the drug has developed, ceasing its use may cause a rebound effect and increase redness of the eyes — a vasodilatory effect.[6]
Intranasal use of tetryzoline may cause transient burning, stinging, or dryness of the mucosa and sneezing. Prolonged intranasal use often causes opposite effects in the form of rebound congestion with effects such as chronic redness, swelling and rhinitis. Prolonged use thus may result in overuse of the drug.[5]
In children, it might cause profound sedation.[7]
Overdose
Overdose most often causes slow heart rate. Respiratory depression, low blood pressure, constricted pupils, hypothermia, brief episodes of high blood pressure,[8] drowsiness, headaches and vomiting may also occur.[9] In serious cases some of these effects may result in circulatory shock.[5] Most often overdoses occur in children who have ingested the drug.[8]
There is no antidote for tetryzoline or other similar imidazoline analogue poisoning, but the symptoms can be alleviated. With treatment, death is rare.[10]
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