Rimonabant (also known as SR141716; trade names Acomplia, Zimulti) was an anorectic antiobesity drug that was first approved in Europe in 2006 but was withdrawn worldwide in 2008 due to serious psychiatric side effects. Rimonabant is an inverse agonist for the cannabinoid receptor CB1 and was the first drug approved in that class. There is considerable evidence that the endocannabinoid (endogenous cannabinoid) system plays a significant role in appetitive drive and associated behaviors. It is, therefore, reasonable to hypothesize that the attenuation of the activity of this system would have therapeutic benefit in treating disorders that might have a component of excess appetitive drive or over-activity of the endocannabinoid system, such as obesity, ethanol and other drug abuse, and a variety of central nervous system and other disorders. Data from clinical trials submitted to regulatory authorities showed that rimonabant caused depressive disorders or mood alterations in up to 10% of subjects and suicidal ideation in around 1%, and in Europe, it was contraindicated for people with any psychiatric disorder, including depressed or suicidal people. Additionally, nausea and upper respiratory tract infections were very common (occurring in more than 10% of people) adverse effects; common adverse effects (occurring in between 1% and 10% of people) included gastroenteritis, anxiety, irritability, insomnia and other sleep disorders, hot flushes, diarrhea, vomiting, dry or itchy skin, tendonitis, muscle cramps and spasms, fatigue, flu-like symptoms, and increased risk of falling.

Terodiline is a racemic compound, and its main indication was detrusor instability syndrome. With effects on detrusor muscles, terodiline was used for bladder incontinence. Terodiline has both anticholinergic and calcium antagonist properties and, as a result, effectively reduces abnormal bladder contractions caused by detrusor instability. When administered to adult patients with urge incontinence (generally as a 25mg twice-daily dose) terodiline reduces diurnal and nocturnal micturition frequency and incontinence episodes. The (R)-enantiomer of terodiline (R( )-terodiline) can trigger cardiovascular toxicities, such as LQTS and TdP, which led to its withdrawal in 1991. Terodiline under the brand name Micturin was licensed and marketed in the United Kingdom, in 1986, for the management of a specific form of urinary incontinence, detrusor instability. It was eventually marketed in 20 other countries, mainly in Europe and Japan, but not the United States of America.

Nefopam (nefopam hydrochloride) is a potent, rapidly-acting non-narcotic analgesic. It is totally distinct from other centrally-acting analgesics such as morphine, codeine, pentazocine and propoxyphene. Unlike the narcotic agents, nefopam (nefopam hydrochloride) has been shown not to cause respiratory depression. It is indicated for the relief of acute and chronic pain, including post-operative pain, dental pain, musculo-skeletal pain, acute traumatic pain and cancer pain. Its mechanism of action is unclear.

Thebacon (dihydrocodeinone enol acetate, trade name Acedicon) is semisynthetic opioid analgetic and antitussive compound. Boehringer-Ingelheim merketed Acedicon for the treatment of cough. Thebacon is a Schedule I drug, that has not got approved use in US.

Carbiphene (etomide, SQ 10,269) is a nonnarcotic analgesic agent for the relief of pain. SQ 10,269 is considered to be a non-addicting analgesic agent indicated for the relief of all types of pain, including post-operative pain and pain associated with chronic and recurrent diseases.

Nimesulide is a relatively COX-2 selective, non-steroidal anti-inflammatory drug (NSAID) with analgesic and antipyretic properties. Its approved indications are the second line treatment of acute pain and primary dysmenorrhoea. Due to concerns about the risk of hepatotoxicity, nimesulide has been withdrawn from market in many countries.

Cathine, known as D-norpseudoephedrine, is a psychoactive drug of amphetamine class, found naturally in Catha edulis (khat). It is a norepinephrine and dopamine releasing agent, and has thermogenic and anorectic effect. In the United States, cathine is classified as a Schedule IV controlled substance. Cathine hydrochloride is used as an appetite suppressant during the first few weeks of dieting to help establish new eating habits.

Mestanolone is an oral analogue of dihydrotestosterone. This steroid is a 17-alpha methylated form of this potent endogenous androgen, being essentially (in structure) to dihydrotestosterone what methyltestosterone is to testosterone. Overall, mestanolone has an activity profile not very dissimilar from the hormone it is derived from. Like dihydrotestosterone, mestanolone is primarily androgenic in nature, displaying a low level of anabolic activity. Both dihydrotestosterone and mestanolone are also devoid of estrogenic activity. Dihydrotestosterone was synthesized in 1935. After that 17-alpha-methylated version also appeared. This steroid was not frequently used in clinical medicine. It was produced under the name of ermalon for short period of time. Most studies involving mestanolone were carried out in the 1950s and 1960s. In the 1970s and 1980s it was used as part of the East German doping machine. Mestanolone was evaluated not for its anabolic ability but for its androgenic essence. It improved the functioning of the CNS and neuromuscular interaction. Athletes claimed that it did not make them huge, but gave them speed, strength, aggression, stamina and resistance to stress. Mestanolone is still valued as an oral androgen.

Zatosetron is a potent, selective, orally effective 5HT3 receptor antagonist. It has been studied in the treatment of emesis, migraine and anxiety.

Dibenzepin is a tricyclic antidepressant of the dibenzo-epine group. It is a selective noradrenaline uptake inhibitor, which exhibits in vitro and in vivo imipramine-like effects. It binds strongly to histamine H1 receptors in the brain and, to a lesser extent, to cholinergic receptors. The pharmacological profile of dibenzepin corresponds widely to its biochemical properties: histamine antagonism, tetrabenazine antagonism, potentiation of various noradrenergic effects and anticholinergic effects. Dibenzepin is only available in European countries for the treatment of depression.