Chlorphenesin carbamate (Maolate, Musil) is a centrally acting muscle relaxant used to treat muscle pain and spasms. Сhlorphenesin acts in the central nervous system (CNS) rather than directly on skeletal muscle. It also has antifungal and some antibacterial properties. The major adverse effects are drowsiness and dizziness.

MEPHENESIN CARBAMATE, a mephenesin derivative, is a centrally acting muscle relaxant.

Urethane (Ethyl carbamate) is is an ethyl ester of carbamic acid, that has been found in many fermented food products and alcoholic beverages such as cheese, bread, yogurt, wine, whiskey, soya sauce etc. An in vitro study indicated that Urethane has a potential to inhibit the growth of bacteria, plant tissue, and rat carcinoma. Urethane has been used for many years as an antineoplastic agent for medical purposes but this application ended after it was discovered to be carcinogenic in 1943. Urethane can produce long-lasting anesthesia without affecting blood gases or blood pressure, it has been used in acute studies. In earlier studies, Urethane was also used as a co-solvent for water-insoluble analgesic and sedative drugs in Japan. By US FDA regulations, ethyl carbamate has been withdrawn from pharmaceutical use. However, small quantities of ethyl carbamate are also used in laboratories as an anesthetic for animals.

Chlorphenesin is a preservative and cosmetic biocide that helps prevent the growth of microorganisms. In cosmetics and personal care products, Chlorphenesin is used in the formulation of aftershave lotions, bath products, cleansing products, deodorants, hair conditioners, makeup, skin care products, personal cleanliness products, and shampoos. Chlorphenesin has been reported to cause irritation and contact dermatitis in some people, particularly those with sensitive and dry skin. The Cosmetic Ingredient Review (CIR) expert panel released a safety assessment in October 2012, however, that stated chlorphenesin at 0.3 percent (as it exists in personal care products) was classified as having “negligible dermal irritation potential.”

Carisbamate is an experimental anticonvulsant drug that was under development by Johnson & Johnson Pharmaceutical Research and Development but never marketed. Acute and chronic nonclinical toxicological studies have not revealed any significant abnormalities other than dose-related CNS toxicity. Carisbamate displays high potency in a broad range of rodent seizure and epilepsy models at doses well below those that produce CNS toxicity. The exact mechanism of action is unknown but neuroprotective and antiseizure activity of Carisbamate likely results in part from decreased calcium accumulation through blockade of T-type Ca2+ channels. A phase II clinical trial in the treatment of partial seizures demonstrated that the compound has efficacy in the treatment of partial seizures and a good safety profile. In large multicenter phase III clinical trial for the treatment of partial seizures carisbamate at doses of 300, 800, and 1,600 mg/d was effective as adjunctive therapy for reducing the frequency of partial-onset seizures. The most common adverse events, encountered mainly at daily doses of 1000 mg or more, were CNS-related, including headache, dizziness, somnolence, and nausea. In another phase III clinical trial, carisbamate was not more efficacious in migraine prophylaxis than placebo, but carisbamate monotherapy was well tolerated at doses up to 600 mg per day. Johnson & Johnson received provisional approval by the FDA to market carisbamate under the brand name of Comfyde. However, on August 21, 2009, Johnson & Johnson reported that the FDA had failed to give marketing approval.

Parmidin (pyridinol carbamate) is a Soviet drug, has anti-arteriosclerotic (increased vascular resistance) activity, reduces the permeability of blood vessels, it helps to restore disturbed microcirculation in pathological processes. This is mainly due to the influence on kinin system, especially with a decrease in the activity of bradykinin receptors. It also reduces the aggregation of platelets. It’s used to treat: the brain vascular atherosclerosis, heart, limbs; diabetic retinopathy (non-inflammatory lesion of the retina associated with increased levels of sugar in the blood); thrombosis (violation of patency) retinal vein; occlusive disease (inflammation of the inner lining of arteries with a decrease in their lumen); trophic leg ulcers (slow-healing skin defects caused by malnutrition). Ointment is used in neurodermatitis (skin disease caused by disturbance of the central nervous system), Lichen sclerosus (teardrop scleroderma) genital organs of children, as well as a prophylactic and therapeutic agent against radiation skin lesions.