pseudoefedryna

Pseudoephedrine is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes. It is a decongestant commonly used to treat nasal congestion, commonly associated with colds, allergies, and sinusitis. Pseudoephedrine works by constricting blood vessels in the nasal passages, which reduces swelling and allows for easier breathing. It is available over-the-counter in many countries, often in combination with other medications like antihistamines or pain relievers.

The drug is structurally similar to ephedrine, another decongestant, but has fewer side effects. It can be taken orally and is absorbed by the gastrointestinal tract. The effects typically begin within 30 to 60 minutes and can last for several hours. Common side effects can include nervousness, sleeplessness, dizziness, and increased heart rate. In some individuals, it may also cause a rise in blood pressure.

Due to its potential for misuse in the illicit manufacture of methamphetamine, pseudoephedrine is subject to various regulations in many regions. These regulations often include restrictions on the quantity that can be purchased at one time, requirements for identification, and limitations on its placement within pharmacies, such as being kept behind the counter. These measures are intended to deter its diversion for illegal purposes while maintaining its availability for legitimate medical use.