L. Ringwelski

Publications14
h-index1
Citations22
Highly Influential Citations0
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Comparative pharmacokinetics and relative bioavailability for different preparations of nitrofurantoin.
In a single-dose study three different dosage forms of nitrofurantoin tablets are compared in order to attain a longer duration of efficacy by means of sustained-release dosage forms. In particular,… Expand
  • 6
[Pharmacokinetics and relative bioavailability of a nitroglycerin ointment formulation (author's transl)].
A comparative pharmacokinetic study was performed for three different nitroglycerin application forms. Serum concentrations were determined in six healthy male volunteers aged from 25 to 29 years.… Expand
  • 4
[Testing the effectiveness of cerebrally active drugs. Preliminary communication on a test model for cerebrally active drugs in humans].
In a pilot study the feasibility of a new model in clinical pharmacology was investigated for testing cerebro-active drugs on healthy volunteers. For this study 6 volunteers were examined under… Expand
  • 3
[Analog computer analysis of radioactivity kinetics in man following oral administration of tilidine HCl-14C].
  • L. Ringwelski
  • Chemistry, Medicine
  • International journal of clinical pharmacology…
  • 1 March 1975
Models for studying the absorption and elimination kinetics of 14-C labelled DL-Ethyl-trans-2-dimethylamino-1-phenyl-cyclohex-3-ene-trans-1-carboxylate-hydrochloride (Tilidine - HCl, Valoron) are… Expand
[Pharmacokinetics and bioavailability of the myotonolytic N-(hydroxy-2-ethyl)-cinnamide (author's transl)].
The bioavailability, the absorption and elimination rate (biological half-life) as well as the volume of distribution for different routes of application were tested for the myotonolytic… Expand
[Estimation of pharmacokinetic constants in irregular repeated drug administration (author's transl)].
Least squares estimations for the fraction of the dose absorbed, volume of distribution, absorption and elimination rate based on drug measurements in blood and urine after aperiodical administration… Expand
MESSUNGEN DER FLUORESZENZ-LEBENSDAUER UNTER VERW. DER ZWEIPHOTONEN-ABSORPTION
[A comparative pharmacokinetic study for tablet and suppository formulations of a combination product of caffeine, ethaverine, propyphenazone, paracetamol and phenobarbital (author's transl)].
After the single-dose application of Migräne-Kranit, a combination of caffeine, ethaverine, propyphenazone, paracetamol and phenobarbital, tablets and suppositories in six healthy male volunteers… Expand
  • 1
Characteristics of a Tunable Travelling Wave Dye Ring Laser
Abstract A flashlamp pumped dye ring laser using 4 Abbé prisms of constant 90 degree deviation has been built. Travelling wave operation is obtained when the counterclockwise wave is fed back by a… Expand
  • 4
[Concentration of cefadroxil in kidney tissue and serum after oral administration in patients with normal and impaired renal function].
In 17 patients (7 with normal renal function, 10 with impaired renal function) who underwent renal surgery, renal tissue samples and blood samples were taken 3-4 h following the administration of a… Expand