Sinutab (made by McNeil Consumer Healthcare, a Johnson & Johnson company) — contains 500 mg paracetamol and 30 mg pseudoephedrine hydrochloride. Sudafed Decongestant (made by McNeil Consumer Healthcare, a Johnson & Johnson company) — contains 60 mg of pseudoephedrine hydrochloride. Theraflu (made by Novartis) — previously contained pseudoephedrine, now contains phenylephrine. Unifed (made by United Pharmaceutical Manufacturer, Jordan) — contains pseudoephedrine hydrochloride (also triprolidine and guaifenesin). Zyrtec-D 12 Hour (made by McNeil Consumer Healthcare, a Johnson & Johnson company) — contains 120 mg pseudoephedrine hydrochloride (also 5 mg of cetirizine). Zephrex-D (made by Westport Pharmaceuticals) – a special meth-resistant form of pseudoephedrine that becomes gooey when heated

Legal status
Australia
Illicit diversion of pseudoephedrine in Australia has caused significant changes to the way the products are regulated. As of 2006, all products containing pseudoephedrine have been rescheduled as either "Pharmacist Only Medicines" (Schedule 3) or "Prescription Only Medicines" (Schedule 4), depending on the amount of pseudoephedrine in the product. A Pharmacist Only Medicine may only be sold to the public if a pharmacist is directly involved in the transaction. These medicines must be kept behind the counter, away from public access. Pharmacists are also encouraged (and in some states required) to log purchases with the online database Project STOP. This system aims to prevent individuals from purchasing small quantities of pseudoephedrine from many different pharmacies. As a result, many pharmacies no longer stock Sudafed, the common brand of pseudoephedrine cold/sinus tablets, opting instead to sell Sudafed PE, a phenylephrine product that has not been proven effective in clinical trials.
Somnolence (alternatively sleepiness or drowsiness) is a state of strong desire for sleep, or sleeping for unusually long periods (compare hypersomnia). It has distinct meanings and causes. It can refer to the usual state preceding falling asleep, the condition of being in a drowsy state due to circadian rhythm disorders, or a symptom of other health problems. It can be accompanied by lethargy, weakness and lack of mental agility.Somnolence is often viewed as a symptom rather than a disorder by itself. However, the concept of somnolence recurring at certain times for certain reasons constitutes various disorders, such as excessive daytime sleepiness, shift work sleep disorder, and others; and there are medical codes for somnolence as viewed as a disorder. Sleepiness can be dangerous when performing tasks that require constant concentration, such as driving a vehicle. When a person is sufficiently fatigued, microsleeps may be experienced. In individuals deprived of sleep, somnolence may spontaneously dissipate for short periods of time; this phenomenon is the second wind, and results from the normal cycling of the circadian rhythm interfering with the processes the body carries out to prepare itself to rest. The word "somnolence" is derived from the Latin "somnus" meaning "sleep". Causes
Circadian rhythm disorders
Circadian rhythm ("biological clock") disorders are a common cause of drowsiness as are a number of other conditions such as sleep apnea, insomnia and narcolepsy. The body clock disorders are classified as extrinsic (externally caused) or intrinsic.