Buprenorphine, sold under the brand name Subutex, among others, is an opioid used to treat opioid addiction, acute pain, and chronic pain. It can be used under the tongue, by injection, as a skin patch, or as an implant. A wide dosage range of immediate-release nifedipine has been reported in pediatric patients, however the most commonly reported doses range from 0.2 to 0.5 mg/kg/dose up to 10 mg total dose PO. Question. Can the calcium channel blocker nifedipine be used as a tocolytic in preterm labor? What regimen should be used? Nifedipine should be used with caution in patients who are hypotensive as there is a risk of further reduction in blood pressure and care must be exercised in patients with very low blood pressure (severe hypotension with systolic blood pressure less than 90 mm Hg). Nifedipine Capsules official prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions, pharmacology and more. Learn more about Melatonin uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Melatonin Adalat ® CC is an extended release tablet dosage form of the calcium channel blocker nifedipine. Nifedipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-dimethyl ester, C 17 H 18 N 2 O 6, and has the structural formula: Nifedipine is a yellow crystalline substance, practically insoluble in water but soluble in ethanol. It has a molecular weight of 346.3. PROCARDIA capsules are formulated as soft gelatin capsules for oral administration, each containing 10 mg nifedipine. SIDE EFFECTS Adverse Experiences. The incidence of adverse events during treatment with Adalat CC in doses up to 90 mg daily were derived from multi-center placebo-controlled clinical trials in 370 hypertensive patients. The following adverse effects have been associated with use of phenobarbital. The most frequent adverse effect is sedation. Blood and lymphatic system disorders.